LM4041 datasheet - Texas Instruments

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LM4041C12IDBZT. Bulk of 1000. LM4041C12ILP. TO-92/TO-226 (LP). PREVIEW. Reel of 2000. LM4041C12ILPR. Reel of 3000. LM404
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FEATURES • •

• • • •

Applications – Data-Acquisition Systems – Power Supplies and Power-Supply Monitors – Instrumentation and Test Equipment – Process Control – Precision Audio – Automotive Electronics – Energy Management/Metering – Battery-Powered Equipment

1.225-V Fixed and Adjustable Outputs (1.225 V to 10 V) Tight Output Tolerances and Low Temperature Coefficient – Max 0.1%, 100 ppm/°C – A Grade – Max 0.2%, 100 ppm/°C – B Grade – Max 0.5%, 100 ppm/°C – C Grade – Max 1.0%, 150 ppm/°C – D Grade Low Output Noise . . . 20 µVRMS (Typ) Wide Operating Current Range . . . 45 µA (Typ) to 12 mA Stable With All Capacitive Loads; No Output Capacitor Required Available in – Industrial Temperature: –40°C to 85°C – Extended Temperature: –40°C to 125°C 1.2 V . . . DBZ (SOT-23) PACKAGE (TOP VIEW)

CATHODE

1.2 V . . . DCK (SC-70) PACKAGE (TOP VIEW)

1

ANODE 3 *

CATHODE 3

* Pin 3 must be connected to ANODE or left open.

Adjustable . . . DBZ (SOT-23) PACKAGE (TOP VIEW)

FB CATHODE

1

NC

4

NC

Adjustable . . . DCK (SC-70) PACKAGE (TOP VIEW)

NC 1 ANODE

2

ANODE

ANODE CATHODE NC

NC − No internal connection * Pin 2 must be connected to ANODE or left open.

1 3

5

* 2

ANODE 2

1.2 V . . . LP (TO-92/TO-226) PACKAGE (TOP VIEW)

5 FB

NC − No internal connection

Adjustable . . . LP (TO-92/TO-226) PACKAGE (TOP VIEW)

ANODE

2

CATHODE 3

CATHODE 4 NC

FB

NC − No internal connection

DESCRIPTION/ORDERING INFORMATION The LM4041 series of shunt voltage references are versatile, easy-to-use references suitable for a wide array of applications. They require no external capacitors for operation and are stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications. The LM4041 is available in a fixed (1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value between 1.225 V and 10 V).

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

Copyright © 2005–2006, Texas Instruments Incorporated

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Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45 µA (typ), the LM4041 also is ideal for portable applications. The TO-92 package also is available for through-hole packaging needs. The LM4041xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4041xQ is characterized for operation over an ambient temperature range of –40°C to 125°C. ORDERING INFORMATION TA

DEVICE GRADE A grade: 0.1% initial accuracy and 100 ppm/°C temperature coefficient

PACKAGE (1)

VZ SC-70 (DCK) 1.2 V

SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK)

B grade: 0.2% initial accuracy and 100 ppm/°C temperature coefficient

ADJ

SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK)

1.2 V

SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK)

–40°C to 85°C

C grade: 0.5% initial accuracy and 100 ppm/°C temperature coefficient

ADJ

SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK)

1.2 V

SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK)

D grade: 1.0% initial accuracy and 150 ppm/°C temperature coefficient

ADJ

SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK)

1.2 V

SOT-23-3 (DBZ) TO-92/TO-226 (LP)

(1) (2)

2

ORDERABLE PART NUMBER

Reel of 3000

LM4041A12IDCKR

Reel of 3000

LM4041A12IDBZR

Reel of 250

LM4041A12IDBZT

Bulk of 1000

LM4041A12ILP

Reel of 2000

LM4041A12ILPR

Reel of 3000

LM4041BIDCKR

Reel of 250

LM4041BIDCKT

Reel of 3000

LM4041BIDBZR

Reel of 250

LM4041BIDBZT

Bulk of 1000

LM4041BILP

Reel of 2000

LM4041BILPR

Reel of 3000

LM4041B12IDCKR

Reel of 3000

LM4041B12IDBZR

Reel of 250

LM4041B12IDBZT

Bulk of 1000

LM4041B12ILP

Reel of 2000

LM4041B12ILPR

Reel of 3000

LM4041CIDCKR

Reel of 250

LM4041CIDCKT

Reel of 3000

LM4041CIDBZR

Reel of 250

LM4041CIDBZT

Bulk of 1000

LM4041CILP

Reel of 2000

LM4041CILPR

Reel of 3000

LM4041C12IDCKR

Reel of 3000

LM4041C12IDBZR

Reel of 250

LM4041C12IDBZT

Bulk of 1000

LM4041C12ILP

Reel of 2000

LM4041C12ILPR

Reel of 3000

LM4041DIDCKR

Reel of 250

LM4041DIDCKT

Reel of 3000

LM4041DIDBZR

Reel of 250

LM4041DIDBZT

Bulk of 1000

LM4041DILP

Reel of 2000

LM4041DILPR

Reel of 3000

LM4041D12IDCKR

Reel of 3000

LM4041D12IDBZR

Reel of 250

LM4041D12IDBZT

Bulk of 1000

LM4041D12ILP

Reel of 2000

LM4041D12ILPR

TOP-SIDE MARKING (2) MK_ 4MK_ PREVIEW MG_ 4MG_ PREVIEW ML_ 4ML_ PREVIEW MH_ 4MH_ PREVIEW MM_ 4MM_ PREVIEW MJ_ 4MJ_ PREVIEW MN_ 4MN_ PREVIEW

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. DBZ/DCK: The actual top-side marking has one additional character that designates the assembly/test site.

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ORDERING INFORMATION TA

–40°C to 125°C

(1) (2)

DEVICE GRADE C grade: 0.5% initial accuracy and 100 ppm/°C temperature coefficient D grade: 1.0% initial accuracy and 150 ppm/°C temperature coefficient

VZ ADJ

PACKAGE (1) SOT-23-3 (DBZ)

1.2 V

SOT-23-3 (DBZ)

ADJ

SOT-23-3 (DBZ)

1.2 V

SOT-23-3 (DBZ)

ORDERABLE PART NUMBER

Reel of 3000

LM4041CQDBZR

Reel of 250

LM4041CQDBZT

Reel of 3000

LM4041C12QDBZR

Reel of 250

LM4041C12QDBZT

Reel of 3000

LM4041DQDBZR

Reel of 250

LM4041DQDBZT

Reel of 3000

LM4041D12QDBZR

Reel of 250

LM4041D12QDBZT

TOP-SIDE MARKING (2) 4MP_

4MS_

4MR_

4MT_

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. DBZ/DCK: The actual top-side marking has one additional character that designates the assembly/test site.

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FUNCTIONAL BLOCK DIAGRAM CATHODE

+ _ VREF(1)

(2)

FB(1) (2)

ANODE (1) LM4041x (ADJ) only (2) LM4041x12 only

Absolute Maximum Ratings (1) over free-air temperature range (unless otherwise noted) MIN VZ

Continuous cathode voltage

IZ

Continuous cathode current

θJA

Package thermal impedance (2) (3)

TJ

Operating virtual junction temperature

Tstg

Storage temperature range

(1) (2) (3)

–10

MAX

V

25

mA

DBZ package

206

DCK package

252

LP package

156 –65

UNIT

15

°C/W

150

°C

150

°C

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7.

Recommended Operating Conditions IZ

Cathode current

VZ

Reverse breakdown voltage (adjustable version)

TA (1)

4

Free-air temperature

MIN

MAX

(1)

12

mA

10

V

LM4041 (I temperature)

–40

85

LM4041 (Q temperature)

–40

125

See parametric tables

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UNIT

°C

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LM4041x12I Electrical Characteristics full-range TA = –40°C to 85°C (unless otherwise noted) PARAMETER VZ

TEST CONDITIONS

Reverse breakdown voltage

IZ = 100 µA

Reverse breakdown voltage tolerance

IZ = 100 µA

IZ,min

Minimum cathode current

αVZ

Average temperature coefficient of reverse breakdown voltage

TYP

1 mA < IZ < 12 mA

TYP

MAX

1.225

–1.2

1.2

–2.4

2.4

–9.2

9.2

–10.4

10.4

45

75

45

80 ±20

±20

25°C

±15

±15 ±100

25°C

±15

25°C

0.7

Full range 25°C

±100

Full range

mV µA

ppm/°C

±15 1.5

0.7

2 4

75 80

25°C

UNIT V

25°C

Full range

IZ,min < IZ < 1 mA

MIN

Full range 25°C

IZ = 1 mA

LM4041B12I MAX

1.225

Full range

IZ = 100 µA

∆VZ/∆IZ

LM4041A12I MIN

25°C

IZ = 10 mA

Reverse breakdown voltage change with cathode current change

TA

6

1.5 2

4

8

6

mV

8

ZZ

Reverse dynamic impedance

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ

25°C

0.5

eN

Wideband noise

IZ = 100 µA, 10 Hz ≤ f ≤ 10 kHz

25°C

20

20

µVRMS

Long-term stability of reverse breakdown voltage

t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA

25°C

120

120

ppm

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1.5

0.5

1.5



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LM4041x12I Electrical Characteristics full-range TA = –40°C to 85°C (unless otherwise noted) PARAMETER VZ

TEST CONDITIONS

Reverse breakdown voltage

IZ = 100 µA

Reverse breakdown voltage tolerance

IZ = 100 µA

IZ,min

Minimum cathode current

αVZ

Average temperature coefficient of reverse breakdown voltage

TYP

1 mA < IZ < 12 mA

TYP

MAX

1.225

–6

6

–12

12

–14

14

–24

24

45

75

45

80 ±20

±20

25°C

±15

±15 ±100

25°C

±15

25°C

0.7

Full range 25°C

±150

Full range

mV µA

ppm/°C

±15 1.5

0.7

2 2.5

75 80

25°C

UNIT V

25°C

Full range

IZ,min < IZ < 1 mA

MIN

Full range 25°C

IZ = 1 mA

LM4041D12I MAX

1.225

Full range

IZ = 100 µA

∆VZ/∆IZ

LM4041C12I MIN

25°C

IZ = 10 mA

Reverse breakdown voltage change with cathode current change

TA

6

2 2.5

2.5

8

8

mV

10

ZZ

Reverse dynamic impedance

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ

25°C

0.5

eN

Wideband noise

IZ = 100 µA, 10 Hz ≤ f ≤ 10 kHz

25°C

20

20

µVRMS

Long-term stability of reverse breakdown voltage

t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA

25°C

120

120

ppm

6

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0.5

2



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LM4041x12Q Electrical Characteristics full-range TA = –40°C to 125°C (unless otherwise noted) PARAMETER VZ

TEST CONDITIONS

Reverse breakdown voltage

IZ = 100 µA

Reverse breakdown voltage tolerance

IZ = 100 µA

IZ,min

Minimum cathode current

αVZ

Average temperature coefficient of reverse breakdown voltage

25°C Full range

TYP

1 mA < IZ < 12 mA

TYP

MAX

1.225 6

–12

12

18.4

–31

31

45

75

45

80 ±20

±20

25°C

±15

±15 ±100

25°C

±15

25°C

0.7

Full range 25°C Full range 25°C

±150

mV µA

ppm/°C

±15 1.5

0.7

2 2.5

75 80

25°C

UNIT V

–6

Full range

IZ,min < IZ < 1 mA

MIN

–18.4

25°C

IZ = 1 mA

LM4041D12Q MAX

1.225

Full range

IZ = 100 µA

∆VZ/∆IZ

LM4041C12Q MIN

25°C

IZ = 10 mA

Reverse breakdown voltage change with cathode current change

TA

6

2.5 2.5

8 0.5

2 8

mV

10 0.5

ZZ

Reverse dynamic impedance

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ

eN

Wideband noise

IZ = 100 µA, 10 Hz ≤ f ≤ 10 kHz

25°C

20

20

µVRMS

Long-term stability of reverse breakdown voltage

t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA

25°C

120

120

ppm

Full range

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LM4041xI (Adjustable Version) Electrical Characteristics full-range TA = –40°C to 85°C (unless otherwise noted) PARAMETER VREF

TEST CONDITIONS

Reference voltage

IZ = 100 µA, VZ = 5 V

Reference voltage tolerance (1)

IZ = 100 µA, VZ = 5 V

IZ,min

Minimum cathode current

∆VREF/∆IZ

Reference voltage change with cathode current change

∆VREF/∆VKA

Reference voltage change with output voltage change

IFB

Feedback current

αVREF

Average temperature coefficient of reference voltage (1)

eN

(1)

8

LM4041BI MIN

25°C

TYP

1 mA < IZ < 12 mA

MAX

1.233

–2.5

2.5

–6.2

6.2

10.5

–14

14

45

25°C

0.7

1.5

2

4

–1.55

–2

0.7 2

4

–1.55

–2

100

–2.5 60

120

25°C

±20

25°C

±15

100 120

mV

mV/V

nA

±20 ±15 ±100

Full range

µA

6

–2.5 60

mV

1.5 2

6

Full range

75 80

2

Full range

25°C

45

80

Full range 25°C

75

UNIT V

–10.5

Full range

IZ = 1 mA, VZ = 5 V

TYP

25°C

25°C IZ = 1 mA

MIN

Full range Full range

IZ,min < IZ < 1 mA

LM4041CI MAX

1.233

25°C

IZ = 10 mA, VZ = 5 V

ZZ

TA

±100

ppm/°C

IZ = 100 µA, VZ = 5 V

25°C

±15

±15

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = VREF

25°C

0.3

0.3

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = 10 V

25°C

2

2

Wideband noise

IZ = 100 µA, VZ = VREF, 10 Hz ≤ f ≤ 10 kHz

25°C

20

20

µVRMS

Long-term stability of reverse breakdown voltage

t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA

25°C

120

120

ppm

Reverse dynamic impedance



Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics.

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LM4041xI (Adjustable Version) Electrical Characteristics full-range TA = –40°C to 85°C (unless otherwise noted) PARAMETER VREF

IZ,min

∆VREF/∆IZ

TEST CONDITIONS

Reference voltage

IZ = 100 µA, VZ = 5 V

Reference voltage tolerance (1)

IZ = 100 µA, VZ = 5 V

Reference voltage change with output voltage change

IFB

Feedback current

IZ,min < IZ < 1 mA

IZ = 1 mA

ZZ

eN

(1)

Average temperature coefficient of reference voltage (1)

25°C

–12

12

–24

24 45

25°C 25°C

0.7

mV µA

2 2.5

2

6

–1.55

–2

Full range 25°C

75 80

Full range

UNIT V

Full range

mV

8

Full range 25°C

IZ = 1 mA, VZ = 5 V

MAX

1.233

–3 60

Full range IZ = 10 mA, VZ = 5 V

αVREF

TYP

Full range

1 mA < IZ < 12 mA ∆VREF/∆VKA

LM4041DI MIN

25°C

25°C

Minimum cathode current

Reference voltage change with cathode current change

TA

150 200

25°C

±20

25°C

±15 ±150

Full range

mV/V nA

ppm/°C

IZ = 100 µA, VZ = 5 V

25°C

±15

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = VREF

25°C

0.3

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = 10 V

25°C

2

Wideband noise

IZ = 100 µA, VZ = VREF, 10 Hz ≤ f ≤ 10 kHz

25°C

20

µVRMS

Long-term stability of reverse breakdown voltage

t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA

25°C

120

ppm

Reverse dynamic impedance



Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics.

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LM4041xQ (Adjustable Version) Electrical Characteristics full-range TA = –40°C to 125°C (unless otherwise noted) PARAMETER VREF

TEST CONDITIONS

Reference voltage

IZ = 100 µA, VZ = 5 V

Reference voltage tolerance (1)

IZ = 100 µA, VZ = 5 V

IZ,min

Minimum cathode current

∆VREF/∆IZ

Reference voltage change with cathode current change

∆VREF/∆VKA

Reference voltage change with output voltage change

IFB

Feedback current

αVREF

Average temperature coefficient of reference voltage (1)

eN

(1)

10

LM4041CQ MIN

25°C

TYP

1 mA < IZ < 12 mA

MAX

1.233 6.2

–12

12

–18

18

–30

30

45

25°C

0.7

1.5

2

4

–1.55

–2

0.7 2

6

–1.55

–2.5

100

–4 60

120

25°C

±20

25°C

±15

150 200

mV

mV/V

nA

±20 ±15 ±100

Full range

µA

10

–3 60

mV

2 2.5

8

Full range

75 80

2

Full range

25°C

45

80

Full range 25°C

75

UNIT V

–6.2

Full range

IZ = 1 mA, VZ = 5 V

TYP

25°C

25°C IZ = 1 mA

MIN

Full range Full range

IZ,min < IZ < 1 mA

LM4041DQ MAX

1.233

25°C

IZ = 10 mA, VZ = 5 V

ZZ

TA

±150

ppm/°C

IZ = 100 µA, VZ = 5 V

25°C

±15

±15

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = VREF

25°C

0.3

0.3

IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = 10 V

25°C

2

2

Wideband noise

IZ = 100 µA, VZ = VREF, 10 Hz ≤ f ≤ 10 kHz

25°C

20

20

µVRMS

Long-term stability of reverse breakdown voltage

t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA

25°C

120

120

ppm

Reverse dynamic impedance



Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics.

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TYPICAL CHARACTERISTICS 0.5

1000

IZ = 150 A VREF = 1.2 V

0.4 0.3

800 Noise Voltage (nV/Hz)

Reference Voltage (V)

−9.9 ppm/C 0.2 2.7 ppm/C 0.1 0 −0.1 21 ppm/C −0.2 −0.3

600

400

200

−0.4 −0.5 −40

−20

0

20

40

60

80

0

100

1

10

3

1.235 125C

1.234

0

1

−5

VZ

−10

0.5

VIN (V)

1.5

Reference Voltage (V)

VIN

VZ (V)

LM4041 (Adj) IZ = 1 mA

10

5

10k




1.2345

2

1k

Figure 2. Noise Voltage vs Frequency

15

2.5

100 Frequency (Hz)

Temperature (C) Figure 1. Temperature Drift for Different Average Temperature Coefficients

85C

1.2335

−40C 25C

1.233 1.2325 1.232 1.2315

−15

0

−20 26

−0.5 −2

2

6

10

14

18

22

1.231 1.2305 0

4

6

8

10

Reverse (Output) Voltage (V)

Time (s) Figure 3. Start-Up Characteristics


2

Figure 4. Reference Voltage vs Reverse (Output) Voltage (for Different Temperatures)

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TYPICAL CHARACTERISTICS 1.235

100

LM4041 (Adj) IZ = 1 mA

1.2345

90

125C

85C

80 VREF

Feedback Current (nA)

Reference Voltage (V)

1.234

LM4041 (Adj) IZ = 1 mA

1.2335 1.233 5V

1.2325 1.232 1.2315

25C 70 −40C

60 50 40 30

10 V 20

1.231 10 1.2305 −40

−20

0

20

40

60

80

0

100

Temperature (C)

2

4

6

8

10

Reverse (Output) Voltage (V) Figure 6. Feedback Current vs Reverse (Output) Voltage (for Different Temperatures)

Figure 5. Reference Voltage vs Temperature (for Different Reverse Voltages)

1000

1000 LM4041 (Adj) IZ = 1 mA IZ = 0.1 IZ Tj = 25C

100

CL = 0 F 10

10 V

Impedance (Ω)

Capacitor Line

100 Impedance ()

0

CL = 0 F

Capacitor Line

LM4041 (Adj) IZ = 150 A IZ = 0.1 IZ Tj = 25°C

10 V 10

5V

5V CL = 1 F

CL = 1 F

1.23 V 1

1

2.5 V 1.23 V 2.5 V

0.1

0.1 100

1k

10k

100k

1M

100

1k

Frequency (Hz)

100k

Frequency (Hz)

Figure 7. Output Impedance vs Frequency

12

10k

Figure 8. Output Impedance vs Frequency

Submit Documentation Feedback

1M

LM4041 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE

www.ti.com

SLCS146E – FEBRUARY 2005 – REVISED FEBRUARY 2006

TYPICAL CHARACTERISTICS FB Steps (V) (see Figure 12) 0

100

2

4

6

100

8

90

LM4041 (Adj) VZ = 1.23 V (nominal)

90 80 Reverse Current (A)

Reverse Current (A)

80 70 60 50 40 30

70 60 50 40 30 20

20 LM4041 (Adj) IZ = 1 mA

10

10

0 0

1

2

3

4

5

6

7

8

9

10

Reverse (Output) Voltage (V)

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

Reverse (Output) Voltage (V) Figure 10. Reverse Characteristics and Minumum Operating Current

Figure 9. Reverse Characteristics


1.6

0

LM4041 (Adj) VAdj = VREF + 5 mV

1.4

Output Saturation (V)

1.2

−40C

1 25C

85C

0.8 125C

0.6 0.4 0.2 0 0

1

2

3

4

5

6

7

8

9

10 11

12

Output Current (mA)

Figure 11. Output Saturation vs Output Current

Submit Documentation Feedback

13

LM4041 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE

www.ti.com

SLCS146E – FEBRUARY 2005 – REVISED FEBRUARY 2006

APPLICATION INFORMATION RS 30 k

VIN

LM4041-1.2

VZ

1-Hz rate

Figure 12. Startup Characteristics Test Circuit

IR

(+) LM4041 (Adj) (−)

2 V/step V

Figure 13. Reverse Characteristics Test Circuit

Output Capacitor The LM4041 does not require an output capacitor across CATHODE and ANODE for stability. However, if an output bypass capacitor is desired, the LM4041 is designed to be stable with all capacitive loads.

SOT-23 and SC-70 Pin Connections There is a parasitic Schottky diode connected between pins 2 and 3 of the SOT-23 packaged device. Thus, pin 3 of the SOT-23 package must be left floating or connected to pin 2. Similarly, pin 2 of the SC-70 package also must be left floating or connected to pin 1.

14

Submit Documentation Feedback

LM4041 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE

www.ti.com

SLCS146E – FEBRUARY 2005 – REVISED FEBRUARY 2006

APPLICATION INFORMATION Adjustable Version The adjustable version allows VZ to be set by a user-defined resistor divider. The output voltage, VZ, is set according to the equation shown in Figure 14. VS

RS



VREF LM4041



VZ = VREF 1  R2 R1

+ R1



(Adjustable) R2

Figure 14. Adjustable Shunt Regulator

Cathode and Load Currents In a typical shunt regulator configuration (see Figure 15), an external resistor, RS, is connected between the supply and the cathode of the LM4041. RS must be set properly, as it sets the total current available to supply the load (IL) and bias the LM4041 (IZ). In all cases, IZ must stay within a specified range for proper operation of the reference. Taking into consideration one extreme in the variation of the load and supply voltage (maximum IL and minimum VS), RS must be small enough to supply the minimum IZ required for operation of the regulator, as given by data sheet parameters. At the other extreme, maximum VS and minimum IL, RS must be large enough to limit IZ to less than its maximum recommended rating of 12 mA. RS is calculated as shown in Equation 1. VS  VZ RS  (I L  I Z)

(1) VS

RS

IZ + IL IL

VZ IZ LM4041

Figure 15. Shunt Regulator

Submit Documentation Feedback

15

PACKAGE OPTION ADDENDUM

www.ti.com

22-Aug-2017

PACKAGING INFORMATION Orderable Device

Status (1)

Package Type Package Pins Package Drawing Qty

Eco Plan

Lead/Ball Finish

MSL Peak Temp

(2)

(6)

(3)

Op Temp (°C)

Device Marking (4/5)

LM4041A12IDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MK3, 4MKU)

LM4041A12IDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MK3, 4MKU)

LM4041A12IDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MK3, 4MKU)

LM4041A12IDCKR

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MKU

LM4041A12ILP

PREVIEW

TO-92

LP

3

1000

TBD

Call TI

Call TI

-40 to 85

LM4041B12IDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4ML3, 4MLU)

LM4041B12IDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4ML3, 4MLU)

LM4041B12IDCKR

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MLU

LM4041B12ILP

PREVIEW

TO-92

LP

3

1000

TBD

Call TI

Call TI

-40 to 85

LM4041BIDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MG3, 4MGU)

LM4041BIDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MG3, 4MGU)

LM4041BIDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MG3, 4MGU)

LM4041BIDBZTG4

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MG3, 4MGU)

LM4041BIDCKR

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MGU

LM4041BIDCKT

ACTIVE

SC70

DCK

5

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MGU

LM4041BILP

PREVIEW

TO-92

LP

3

1000

TBD

Call TI

Call TI

-40 to 85

LM4041BILPR

PREVIEW

TO-92

LP

3

2000

TBD

Call TI

Call TI

-40 to 85

LM4041C12IDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MM3, 4MMU)

LM4041C12IDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MM3, 4MMU)

Addendum-Page 1

Samples

PACKAGE OPTION ADDENDUM

www.ti.com

Orderable Device

22-Aug-2017

Status (1)

Package Type Package Pins Package Drawing Qty

Eco Plan

Lead/Ball Finish

MSL Peak Temp

(2)

(6)

(3)

Op Temp (°C)

Device Marking (4/5)

LM4041C12IDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MM3, 4MMU)

LM4041C12IDBZTG4

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MM3, 4MMU)

LM4041C12IDCKR

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MMU

LM4041C12IDCKRE4

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MMU

LM4041C12IDCKRG4

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MMU

LM4041C12ILP

ACTIVE

TO-92

LP

3

1000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPC12I

LM4041C12ILPE3

ACTIVE

TO-92

LP

3

1000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPC12I

LM4041C12ILPR

ACTIVE

TO-92

LP

3

2000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPC12I

LM4041C12QDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MS3, 4MSU)

LM4041C12QDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MS3, 4MSU)

LM4041C12QDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MS3, 4MSU)

LM4041CIDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MH3, 4MHU)

LM4041CIDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MH3, 4MHU)

LM4041CIDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MH3, 4MHU)

LM4041CIDBZTG4

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MH3, 4MHU)

LM4041CIDCKR

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MHU

LM4041CIDCKT

ACTIVE

SC70

DCK

5

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MHU

LM4041CIDCKTG4

ACTIVE

SC70

DCK

5

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MHU

Addendum-Page 2

Samples

PACKAGE OPTION ADDENDUM

www.ti.com

22-Aug-2017

Orderable Device

Status (1)

Package Type Package Pins Package Drawing Qty

Eco Plan

Lead/Ball Finish

MSL Peak Temp

(2)

(6)

(3)

Op Temp (°C)

Device Marking (4/5)

LM4041CILP

ACTIVE

TO-92

LP

3

1000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPCI

LM4041CILPE3

ACTIVE

TO-92

LP

3

1000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPCI

LM4041CILPR

ACTIVE

TO-92

LP

3

2000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPCI

LM4041CQDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MP3, 4MPU)

LM4041CQDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MP3, 4MPU)

LM4041CQDBZTG4

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MP3, 4MPU)

LM4041D12IDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MN3, 4MNU)

LM4041D12IDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MN3, 4MNU)

LM4041D12IDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MN3, 4MNU)

LM4041D12IDBZTG4

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MN3, 4MNU)

LM4041D12IDCKR

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MNU

LM4041D12ILP

ACTIVE

TO-92

LP

3

1000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPD12I

LM4041D12ILPE3

ACTIVE

TO-92

LP

3

1000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPD12I

LM4041D12ILPR

ACTIVE

TO-92

LP

3

2000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPD12I

LM4041D12QDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MT3, 4MTU)

LM4041DIDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MJ3, 4MJU)

LM4041DIDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MJ3, 4MJU)

LM4041DIDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MJ3, 4MJU)

Addendum-Page 3

Samples

PACKAGE OPTION ADDENDUM

www.ti.com

22-Aug-2017

Orderable Device

Status (1)

Package Type Package Pins Package Drawing Qty

Eco Plan

Lead/Ball Finish

MSL Peak Temp

(2)

(6)

(3)

Op Temp (°C)

Device Marking (4/5)

LM4041DIDBZTG4

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

(4MJ3, 4MJU)

LM4041DIDCKR

ACTIVE

SC70

DCK

5

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MJU

LM4041DIDCKT

ACTIVE

SC70

DCK

5

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 85

MJU

LM4041DILP

ACTIVE

TO-92

LP

3

1000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPDI

LM4041DILPR

ACTIVE

TO-92

LP

3

2000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPDI

LM4041DILPRE3

ACTIVE

TO-92

LP

3

2000

Pb-Free (RoHS)

CU SN

N / A for Pkg Type

-40 to 85

NPDI

LM4041DQDBZR

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MR3, 4MRU)

LM4041DQDBZRG4

ACTIVE

SOT-23

DBZ

3

3000

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MR3, 4MRU)

LM4041DQDBZT

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MR3, 4MRU)

LM4041DQDBZTG4

ACTIVE

SOT-23

DBZ

3

250

Green (RoHS & no Sb/Br)

CU NIPDAU

Level-1-260C-UNLIM

-40 to 125

(4MR3, 4MRU)

(1)

The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2)

RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of