LM4041C12IDBZT. Bulk of 1000. LM4041C12ILP. TO-92/TO-226 (LP). PREVIEW. Reel of 2000. LM4041C12ILPR. Reel of 3000. LM404
LM4041 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com
SLCS146E – FEBRUARY 2005 – REVISED FEBRUARY 2006
•
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
LM4041 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
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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
Ω
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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1.5
0.5
2
Ω
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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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1.5
2
Ω
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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
Ω
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
Ω
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
Ω
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