LM4041D12 [TI]
精度为 1% 的 1.2V 精密微功耗并联电压基准;
| 型号： | LM4041D12 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 精度为 1% 的 1.2V 精密微功耗并联电压基准 电源电路 参考电压源 |
| 文件： | 总24页 (文件大小：503K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
FEATURES
•
Available in
•
1.225-V Fixed and Adjustable Outputs
(1.225 V to 10 V)
– Industrial Temperature: –40°C to 85°C
– Extended Temperature: –40°C to 125°C
Applications
•
Tight Output Tolerances and Low
Temperature Coefficient
•
– Data-Acquisition Systems
– Power Supplies and Power-Supply Monitors
– Instrumentation and Test Equipment
– Process Control
– 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)
– Precision Audio
•
•
– Automotive Electronics
Wide Operating Current Range . . .
45 µA (Typ) to 12 mA
– Energy Management/Metering
– Battery-Powered Equipment
•
Stable With All Capacitive Loads; No Output
Capacitor Required
1.2 V . . . DBZ (SOT-23) PACKAGE
(TOP VIEW)
1.2 V . . . DCK (SC-70) PACKAGE
(TOP VIEW)
1.2 V . . . LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
1
1
ANODE
ANODE
NC
NC
5
4
CATHODE
*
3
2
3
*
CATHODE
NC
2
ANODE
CATHODE
* Pin 3 must be connected to
ANODE or left open.
NC − No internal connection
* Pin 2 must be connected to
ANODE or left open.
NC − No internal connection
Adjustable . . . DBZ (SOT-23) PACKAGE
(TOP VIEW)
Adjustable . . . DCK (SC-70) PACKAGE
(TOP VIEW)
Adjustable . . . LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
5
1
1
FB
FB
NC
ANODE
ANODE
3
2
3
ANODE
CATHODE
FB
2
CATHODE
4
NC
CATHODE
NC − No internal connection
DESCRIPTION/ORDERING INFORMATION
The LM4041 series of shunt voltage references are versatile, easy-to-use references with a vast array of
applications. They require no external resistors or 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).
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.
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.
Copyright © 2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
TA
DEVICE GRADE
VZ
PACKAGE(1)
MARKING(2)
A grade:
0.1% initial
accuracy
and
100 ppm/°C
temperature
coefficient
SC-70 (DCK)
Reel of 3000
LM4041A12IDCKR
LM4041A12IDBZR
LM4041A12IDBZT
LM4041A12ILP
LM4041A12ILPR
LM4041BIDCKR
LM4041BIDBZR
LM4041BIDBZT
LM4041BILP
PREVIEW
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 250
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 250
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
Reel of 3000
Reel of 3000
Reel of 250
Bulk of 1000
Reel of 2000
SOT-23-3 (DBZ)
PREVIEW
1.2 V
TO-92/TO-226 (LP)
SC-70 (DCK)
PREVIEW
PREVIEW
PREVIEW
SOT-23-3 (DBZ)
ADJ
B grade:
0.2% initial
accuracy
and
100 ppm/°C
temperature
coefficient
TO-92/TO-226 (LP)
SC-70 (DCK)
PREVIEW
PREVIEW
PREVIEW
LM4041BILPR
LM4041B12IDCKR
LM4041B12IDBZR
LM4041B12IDBZT
LM4041B12ILP
LM4041B12ILPR
LM4041CIDCKR
LM4041CIDCKT
LM4041CIDBZR
LM4041CIDBZT
LM4041CILP
SOT-23-3 (DBZ)
1.2 V
TO-92/TO-226 (LP)
SC-70 (DCK)
PREVIEW
MH_
ADJ
1.2 V
ADJ
SOT-23-3 (DBZ)
4MH_
–40°C to 85°C
C grade:
0.5% initial
accuracy
and
100 ppm/°C
temperature
coefficient
TO-92/TO-226 (LP)
SC-70 (DCK)
PREVIEW
MM_
LM4041CILPR
LM4041C12IDCKR
LM4041C12IDBZR
LM4041C12IDBZT
LM4041C12ILP
LM4041C12ILPR
LM4041DIDCKR
LM4041DIDCKT
LM4041DIDBZR
LM4041DIDBZT
LM4041DILP
SOT-23-3 (DBZ)
4MM_
TO-92/TO-226 (LP)
SC-70 (DCK)
PREVIEW
MJ_
SOT-23-3 (DBZ)
4MJ_
D grade:
1.0% initial
accuracy
and
150 ppm/°C
temperature
coefficient
TO-92/TO-226 (LP)
SC-70 (DCK)
PREVIEW
MN_
LM4041DILPR
LM4041D12IDCKR
LM4041D12IDBZR
LM4041D12IDBZT
LM4041D12ILP
LM4041D12ILPR
SOT-23-3 (DBZ)
4MN_
1.2 V
TO-92/TO-226 (LP)
PREVIEW
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2) DBZ/DCK: The actual top-side marking has one additional character that designates the assembly/test site.
2
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
TA
DEVICE GRADE
VZ
PACKAGE(1)
MARKING(2)
C grade:
0.5% initial
accuracy
and
100 ppm/°C
temperature
coefficient
Reel of 3000
LM4041CQDBZR
LM4041CQDBZT
LM4041C12QDBZR
ADJ
SOT-23-3 (DBZ)
SOT-23-3 (DBZ)
SOT-23-3 (DBZ)
SOT-23-3 (DBZ)
4MP_
Reel of 250
Reel of 3000
1.2 V
ADJ
4MS_
4MR_
4MT_
Reel of 250
LM4041C12QDBZT
–40°C to 125°C
D grade:
1.0% initial
accuracy
and
150 ppm/°C
temperature
coefficient
Reel of 3000
Reel of 250
Reel of 3000
LM4041DQDBZR
LM4041DQDBZT
LM4041D12QDBZR
1.2 V
Reel of 250
LM4041D12QDBZT
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2) DBZ/DCK: The actual top-side marking has one additional character that designates the assembly/test site.
3
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
FUNCTIONAL BLOCK DIAGRAM
CATHODE
+
_
(1)
V
REF
(2)
(1)
FB
(2)
ANODE
(1) LM4041x (ADJ) only
(2) LM4041x12 only
Absolute Maximum Ratings(1)
over free-air temperature range (unless otherwise noted)
MIN
MAX
15
UNIT
VZ
IZ
Continuous cathode voltage
Continuous cathode current
V
–10
25
206
252
156
150
150
mA
DBZ package
DCK package
LP package
θJA
Package thermal impedance(2)(3)
°C/W
TJ
Operating virtual junction temperature
Storage temperature range
°C
°C
Tstg
–65
(1) 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.
(2) 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.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
Recommended Operating Conditions
MIN
MAX
12
UNIT
mA
V
(1)
IZ
Cathode current
VZ
Reverse breakdown voltage (adjustable version)
10
LM4041 (I temperature)
LM4041 (Q temperature)
–40
–40
85
TA
Free-air temperature
°C
125
(1) See parametric tables
4
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
LM4041x12I Electrical Characteristics
full-range TA = –40°C to 85°C (unless otherwise noted)
LM4041A12I
LM4041B12I
PARAMETER
TEST CONDITIONS
IZ = 100 µA
TA
UNIT
V
MIN
TYP
MAX
MIN
TYP
MAX
Reverse breakdown
voltage
VZ
25°C
1.225
1.225
25°C
Full range
25°C
–1.2
–9.2
1.2
–2.4
2.4
10.4
75
Reverse breakdown
voltage tolerance
IZ = 100 µA
mV
9.2 –10.4
45
75
80
45
Minimum cathode
current
IZ,min
µA
Full range
25°C
80
IZ = 10 mA
±20
±15
±20
±15
Average temperature
coefficient of reverse
breakdown voltage
25°C
αVZ
IZ = 1 mA
ppm/°C
Full range
25°C
±100
±100
IZ = 100 µA
IZ,min < IZ < 1 mA
±15
±15
25°C
0.7
1.5
2
0.7
1.5
2
Reverse breakdown
∆VZ/∆IZ voltage change with
Full range
25°C
mV
4
6
4
6
cathode current change
1 mA < IZ < 12 mA
Full range
8
8
Reverse dynamic
impedance
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ
ZZ
25°C
25°C
0.5
20
1.5
0.5
20
1.5
Ω
IZ = 100 µA,
10 Hz ≤ f ≤ 10 kHz
eN
Wideband noise
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
5
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
LM4041x12I Electrical Characteristics
full-range TA = –40°C to 85°C (unless otherwise noted)
LM4041C12I
LM4041D12I
PARAMETER
TEST CONDITIONS
IZ = 100 µA
TA
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
Reverse breakdown
voltage
VZ
25°C
1.225
1.225
V
25°C
Full range
25°C
–6
6
14
75
80
–12
–24
12
24
75
80
Reverse breakdown
voltage tolerance
IZ = 100 µA
mV
–14
45
45
Minimum cathode
current
IZ,min
µA
Full range
25°C
IZ = 10 mA
±20
±15
±20
±15
Average temperature
coefficient of reverse
breakdown voltage
25°C
αVZ
IZ = 1 mA
ppm/°C
Full range
25°C
±100
±150
IZ = 100 µA
IZ,min < IZ < 1 mA
±15
±15
25°C
0.7
1.5
2
0.7
2
2.5
8
Reverse breakdown
∆VZ/∆IZ voltage change with
Full range
25°C
mV
2.5
6
2.5
cathode current change
1 mA < IZ < 12 mA
Full range
8
10
Reverse dynamic
impedance
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ
ZZ
25°C
25°C
0.5
20
1.5
0.5
20
2
Ω
IZ = 100 µA,
10 Hz ≤ f ≤ 10 kHz
eN
Wideband noise
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
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
LM4041x12Q Electrical Characteristics
full-range TA = –40°C to 125°C (unless otherwise noted)
LM4041C12Q
LM4041D12Q
PARAMETER
TEST CONDITIONS
IZ = 100 µA
TA
UNIT
V
MIN
TYP
MAX
MIN
TYP
MAX
Reverse breakdown
voltage
VZ
25°C
1.225
1.225
25°C
Full range
25°C
–6
6
18.4
75
–12
–31
12
31
75
80
Reverse breakdown
voltage tolerance
IZ = 100 µA
mV
–18.4
45
45
Minimum cathode
current
IZ,min
µA
Full range
25°C
80
IZ = 10 mA
±20
±15
±20
±15
Average temperature
coefficient of reverse
breakdown voltage
25°C
αVZ
IZ = 1 mA
ppm/°C
Full range
25°C
±100
±150
IZ = 100 µA
IZ,min < IZ < 1 mA
±15
±15
25°C
0.7
1.5
2
0.7
2
2.5
8
Reverse breakdown
∆VZ/∆IZ voltage change with
Full range
25°C
mV
2.5
0.5
6
2.5
0.5
cathode current change
1 mA < IZ < 12 mA
Full range
25°C
8
10
Reverse dynamic
impedance
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ
ZZ
Ω
Full range
1.5
2
IZ = 100 µA,
10 Hz ≤ f ≤ 10 kHz
eN
Wideband noise
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
7
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
LM4041xI (Adjustable Version) Electrical Characteristics
full-range TA = –40°C to 85°C (unless otherwise noted)
LM4041BI
TYP
LM4041CI
TYP
PARAMETER
Reference voltage
TEST CONDITIONS
IZ = 100 µA, VZ = 5 V
IZ = 100 µA, VZ = 5 V
TA
UNIT
MIN
MAX
MIN
MAX
VREF
25°C
25°C
1.233
1.233
V
–2.5
2.5
10.5
75
80
1.5
2
–6.2
–14
6.2
14
75
80
1.5
2
Reference voltage
tolerance(1)
mV
Full range
25°C
–10.5
45
0.7
45
0.7
Minimum cathode
current
IZ,min
µA
Full range
25°C
IZ,min < IZ < 1 mA
Reference voltage
change with cathode
current change
Full range
25°C
∆VREF/∆IZ
mV
2
4
2
4
1 mA < IZ < 12 mA
Full range
25°C
6
6
Reference voltage
change with output
voltage change
–1.55
–2
–1.55
–2
∆VREF/∆VKA
IZ = 1 mA
mV/V
nA
Full range
–2.5
–2.5
25°C
Full range
25°C
60
100
120
60
100
120
IFB
Feedback current
IZ = 10 mA, VZ = 5 V
IZ = 1 mA, VZ = 5 V
IZ = 100 µA, VZ = 5 V
±20
±15
±20
±15
Average temperature
coefficient of
25°C
αVREF
ppm/°C
reference voltage(1)
Full range
25°C
±100
±100
±15
±15
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ, VZ = VREF
25°C
25°C
25°C
0.3
0.3
Reverse dynamic
impedance
ZZ
eN
Ω
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ, VZ = 10 V
2
2
IZ = 100 µA, VZ = VREF
10 Hz ≤ f ≤ 10 kHz
,
Wideband noise
20
20
µVRMS
Long-term stability of t = 1000 h,
reverse breakdown
voltage
TA = 25°C ± 0.1°C,
IZ = 100 µA
25°C
120
120
ppm
(1) Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics.
8
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
LM4041xI (Adjustable Version) Electrical Characteristics
full-range TA = –40°C to 85°C (unless otherwise noted)
LM4041DI
TYP
PARAMETER
Reference voltage
TEST CONDITIONS
IZ = 100 µA, VZ = 5 V
IZ = 100 µA, VZ = 5 V
TA
UNIT
V
MIN
MAX
VREF
25°C
25°C
1.233
–12
–24
12
24
75
80
2
Reference voltage tolerance(1)
mV
Full range
25°C
45
0.7
IZ,min
Minimum cathode current
µA
Full range
25°C
IZ,min < IZ < 1 mA
1 mA < IZ < 12 mA
IZ = 1 mA
Full range
25°C
2.5
6
Reference voltage change
with cathode current change
∆VREF/∆IZ
mV
2
Full range
25°C
8
–1.55
60
–2
–3
150
200
Reference voltage change
with output voltage change
∆VREF/∆VKA
mV/V
nA
Full range
25°C
IFB
Feedback current
Full range
25°C
IZ = 10 mA, VZ = 5 V
IZ = 1 mA, VZ = 5 V
IZ = 100 µA, VZ = 5 V
±20
±15
25°C
Average temperature coefficient
of reference voltage(1)
αVREF
ppm/°C
Full range
25°C
±150
±15
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ, VZ = VREF
25°C
25°C
25°C
0.3
ZZ
eN
Reverse dynamic impedance
Wideband noise
Ω
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ, VZ = 10 V
2
IZ = 100 µA, VZ = VREF
10 Hz ≤ f ≤ 10 kHz
,
20
µVRMS
t = 1000 h,
TA = 25°C ± 0.1°C,
IZ = 100 µA
Long-term stability
of reverse breakdown voltage
25°C
120
ppm
(1) Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics.
9
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
LM4041xQ (Adjustable Version) Electrical Characteristics
full-range TA = –40°C to 125°C (unless otherwise noted)
LM4041CQ
TYP
LM4041DQ
TYP
PARAMETER
Reference voltage
TEST CONDITIONS
IZ = 100 µA, VZ = 5 V
IZ = 100 µA, VZ = 5 V
TA
UNIT
MIN
MAX
MIN
MAX
VREF
25°C
25°C
1.233
1.233
V
–6.2
–18
6.2
18
75
80
1.5
2
–12
–30
12
30
75
80
2
Reference voltage
tolerance(1)
mV
Full range
25°C
45
0.7
45
0.7
Minimum cathode
current
IZ,min
µA
Full range
25°C
IZ,min < IZ < 1 mA
Reference voltage
change with cathode
current change
Full range
25°C
2.5
6
∆VREF/∆IZ
mV
2
4
2
1 mA < IZ < 12 mA
Full range
25°C
8
10
–2.5
Reference voltage
change with output
voltage change
–1.55
–2
–1.55
∆VREF/∆VKA
IZ = 1 mA
mV/V
nA
Full range
–3
–4
25°C
Full range
25°C
60
100
120
60
150
200
IFB
Feedback current
IZ = 10 mA, VZ = 5 V
IZ = 1 mA, VZ = 5 V
IZ = 100 µA, VZ = 5 V
±20
±15
±20
±15
Average temperature
coefficient of
25°C
αVREF
ppm/°C
reference voltage(1)
Full range
25°C
±100
±150
±15
±15
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ, VZ = VREF
25°C
25°C
25°C
0.3
0.3
Reverse dynamic
impedance
ZZ
eN
Ω
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ, VZ = 10 V
2
2
IZ = 100 µA, VZ = VREF
10 Hz ≤ f ≤ 10 kHz
,
Wideband noise
20
20
µVRMS
Long-term stability of t = 1000 h,
reverse breakdown
voltage
TA = 25°C ± 0.1°C,
IZ = 100 µA
25°C
120
120
ppm
(1) Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics.
10
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
TYPICAL CHARACTERISTICS
0.5
0.4
1000
I
V
= 150 mA
Z
= 1.2 V
REF
0.3
800
600
400
200
0
−9.9 ppm/5C
0.2
2.7 ppm/5C
21 ppm/5C
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
−40
−20
0
20
40
60
80
100
1
10
100
1k
10k
Temperature (5C)
Frequency (Hz)
Figure 1. Temperature Drift for Different Average
Temperature Coefficients
Figure 2. Noise Voltage vs Frequency
<br/>
1.235
3
2.5
2
15
10
LM4041 (Adj)
I
Z
= 1 mA
1.2345
1.234
1255C
V
IN
855C
5
1.2335
1.233
−405C
255C
1.5
0
1.2325
1.232
−5
−10
1
V
Z
0.5
1.2315
1.231
−15
−20
0
−0.5
1.2305
−2
2
6
10
14
18
22
26
0
2
4
6
8
10
Reverse (Output) Voltage (V)
Time (ms)
Figure 3. Start-Up Characteristics
Figure 4. Reference Voltage vs Reverse (Output) Voltage
(for Different Temperatures)
<br/>
11
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
TYPICAL CHARACTERISTICS
1.235
100
LM4041 (Adj)
LM4041 (Adj)
I
= 1 mA
Z
1.2345
1.234
I
Z
= 1 mA
90
80
70
60
50
40
30
20
10
0
1255C
855C
V
REF
255C
1.2335
1.233
−405C
5 V
1.2325
1.232
1.2315
1.231
10 V
1.2305
−40 −20
0
20
40
60
80
100
0
2
4
6
8
10
Temperature (5C)
Reverse (Output) Voltage (V)
Figure 5. Reference Voltage vs Temperature
(for Different Reverse Voltages)
Figure 6. Feedback Current vs Reverse (Output) Voltage
(for Different Temperatures)
1000
100
10
1000
LM4041 (Adj)
I
Z
= 1 mA
C
= 0 mF
L
DI = 0.1 I
Capacitor
Line
Z
Z
T = 255C
j
Capacitor
Line
100
10
1
LM4041 (Adj)
= 150 mA
DI = 0.1 I
I
Z
10 V
5 V
Z
Z
C
= 0 mF
T = 25°C
L
j
10 V
5 V
C
L
= 1 mF
C
= 1 mF
L
1.23 V
2.5 V
1
1.23 V
2.5 V
10k
Frequency (Hz)
Figure 7. Output Impedance vs Frequency
0.1
0.1
100
1k
100k
1M
100
1k
10k
100k
1M
Frequency (Hz)
Figure 8. Output Impedance vs Frequency
12
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
TYPICAL CHARACTERISTICS
FB Steps (V)
(see Figure 12)
100
0
2
4
6
8
LM4041 (Adj)
= 1.23 V (nominal)
100
90
80
70
60
50
40
30
20
10
V
Z
90
80
70
60
50
40
30
20
10
0
LM4041 (Adj)
I
Z
= 1 mA
0
0
1
2
3
4
5
6
7
8
9
10
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
2
Reverse (Output) Voltage (V)
Reverse (Output) Voltage (V)
Figure 9. Reverse Characteristics
Figure 10. Reverse Characteristics and Minumum
Operating Current
<br/>
1.6
LM4041 (Adj)
= V + 5 mV
V
Adj
REF
1.4
1.2
1
−405C
255C
855C
0.8
0.6
0.4
0.2
0
1255C
0
1
2
3
4
5
6
7
8
9
10 11 12
Output Current (mA)
Figure 11. Output Saturation vs Output Current
13
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
APPLICATION INFORMATION
R
S
30 kW
V
IN
LM4041-1.2
V
Z
1-Hz rate
Figure 12. Startup Characteristics Test Circuit
I
R
(+)
(−)
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
LM4041
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146C–FEBRUARY 2005–REVISED MAY 2005
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.
V
S
R
S
R2
Ǔ
R1
REF ǒ1 )
V = V
Z
+
V
REF
−
R1
R2
LM4041
(Adjustable)
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.
ǒ
Ǔ
VS * VZ
RS +
(
)
IL ) IZ
(1)
V
S
R
S
I + I
Z L
I
L
V
Z
I
Z
LM4041
Figure 15. Shunt Regulator
15
PACKAGE OPTION ADDENDUM
www.ti.com
18-Nov-2005
PACKAGING INFORMATION
Orderable Device
LM4041A12IDBZR
LM4041A12IDBZRG4
LM4041A12IDBZT
LM4041A12IDBZTG4
LM4041A12IDCKR
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SOT-23
DBZ
3
3
3
3
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOT-23
SOT-23
SOT-23
SC70
DBZ
DBZ
DBZ
DCK
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041A12IDCKRE4
LM4041A12ILP
ACTIVE
PREVIEW
ACTIVE
SC70
TO-92
SOT-23
DCK
LP
5
3
3
3000
1000
TBD
TBD
Call TI
Call TI
Call TI
Call TI
LM4041B12IDBZR
DBZ
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041B12IDBZRG4
LM4041B12IDBZT
LM4041B12IDBZTG4
LM4041B12IDCKR
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
SC70
DBZ
DBZ
DBZ
DCK
3
3
3
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041B12IDCKRE4
LM4041B12ILP
ACTIVE
PREVIEW
ACTIVE
SC70
TO-92
SOT-23
DCK
LP
5
3
3
3000
1000
TBD
TBD
Call TI
Call TI
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Call TI
LM4041BIDBZR
DBZ
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041BIDBZRG4
LM4041BIDBZT
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
SC70
DBZ
DBZ
DBZ
DCK
3
3
3
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041BIDBZTG4
LM4041BIDCKR
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041BIDCKRE4
LM4041BIDCKT
ACTIVE
ACTIVE
SC70
SC70
DCK
DCK
5
5
3000
TBD
Call TI
Call TI
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041BIDCKTE4
LM4041BILP
ACTIVE
PREVIEW
PREVIEW
ACTIVE
SC70
TO-92
TO-92
SOT-23
DCK
LP
5
3
3
3
250
1000
2000
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
LM4041BILPR
LP
LM4041C12IDBZR
DBZ
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041C12IDBZRG4
LM4041C12IDBZT
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
DBZ
DBZ
DBZ
3
3
3
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041C12IDBZTG4
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
18-Nov-2005
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
LM4041C12IDCKR
ACTIVE
SC70
DCK
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041C12IDCKRE4
LM4041C12ILP
ACTIVE
PREVIEW
ACTIVE
SC70
TO-92
SOT-23
DCK
LP
5
3
3
3000
1000
TBD
TBD
Call TI
Call TI
Call TI
Call TI
LM4041C12QDBZR
DBZ
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041C12QDBZRG4
LM4041C12QDBZT
LM4041C12QDBZTG4
LM4041CIDBZR
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SC70
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
DCK
DCK
DCK
DCK
3
3
3
3
3
3
3
5
5
5
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041CIDBZRG4
LM4041CIDBZT
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041CIDBZTG4
LM4041CIDCKR
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041CIDCKRE4
LM4041CIDCKT
SC70
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SC70
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041CIDCKTE4
SC70
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041CILP
LM4041CILPR
LM4041CQDBZR
PREVIEW
PREVIEW
ACTIVE
TO-92
TO-92
LP
LP
3
3
3
1000
2000
TBD
TBD
Call TI
Call TI
Call TI
Call TI
SOT-23
DBZ
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041CQDBZRG4
LM4041CQDBZT
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SC70
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
DCK
3
3
3
3
3
3
3
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041CQDBZTG4
LM4041D12IDBZR
LM4041D12IDBZRG4
LM4041D12IDBZT
LM4041D12IDBZTG4
LM4041D12IDCKR
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041D12IDCKRE4
LM4041D12QDBZR
ACTIVE
ACTIVE
SC70
DCK
DBZ
5
3
3000
TBD
Call TI
Call TI
SOT-23
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
18-Nov-2005
Orderable Device
LM4041D12QDBZRG4
LM4041D12QDBZT
LM4041D12QDBZTG4
LM4041DIDBZR
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SOT-23
DBZ
3
3
3
3
3
3
3
5
5
5
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SC70
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
DCK
DCK
DCK
DCK
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041DIDBZRG4
LM4041DIDBZT
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041DIDBZTG4
LM4041DIDCKR
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041DIDCKRE4
LM4041DIDCKT
SC70
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SC70
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041DIDCKTE4
SC70
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041DILP
LM4041DILPR
LM4041DQDBZR
PREVIEW
PREVIEW
ACTIVE
TO-92
TO-92
LP
LP
3
3
3
1000
2000
TBD
TBD
Call TI
Call TI
Call TI
Call TI
SOT-23
DBZ
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041DQDBZRG4
LM4041DQDBZT
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
DBZ
DBZ
DBZ
3
3
3
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
LM4041DQDBZTG4
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
(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)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
Addendum-Page 3
PACKAGE OPTION ADDENDUM
www.ti.com
18-Nov-2005
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 4
MECHANICAL DATA
MSOT002A – OCTOBER 1994 – REVISED NOVEMBER 2001
LP (O-PBCY-W3)
PLASTIC CYLINDRICAL PACKAGE
0.205 (5,21)
0.175 (4,44)
0.165 (4,19)
0.125 (3,17)
DIA
0.210 (5,34)
0.170 (4,32)
Seating
Plane
0.157 (4,00) MAX
0.050 (1,27)
C
0.500 (12,70) MIN
0.022 (0,56)
0.016 (0,41)
0.016 (0,41)
0.014 (0,35)
0.104 (2,65)
FORMED LEAD OPTION
STRAIGHT LEAD OPTION
D
0.135 (3,43) MIN
0.105 (2,67)
0.095 (2,41)
0.055 (1,40)
0.045 (1,14)
1
2
3
0.105 (2,67)
0.080 (2,03)
0.105 (2,67)
0.080 (2,03)
4040001-2/C 10/01
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Lead dimensions are not controlled within this area
D. FAlls within JEDEC TO -226 Variation AA (TO-226 replaces TO-92)
E. Shipping Method:
Straight lead option available in bulk pack only.
Formed lead option available in tape & reel or ammo pack.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MECHANICAL DATA
MSOT002A – OCTOBER 1994 – REVISED NOVEMBER 2001
LP (O-PBCY-W3)
PLASTIC CYLINDRICAL PACKAGE
0.539 (13,70)
0.460 (11,70)
1.260 (32,00)
0.905 (23,00)
0.650 (16,50)
0.610 (15,50)
0.020 (0,50) MIN
0.098 (2,50)
0.384 (9,75)
0.335 (8,50)
0.748 (19,00)
0.217 (5,50)
0.748 (19,00)
0.689 (17,50)
0.433 (11,00)
0.335 (8,50)
0.114 (2,90)
0.094 (2,40)
0.114 (2,90)
0.094 (2,40)
0.169 (4,30)
0.146 (3,70)
DIA
0.266 (6,75)
0.234 (5,95)
0.512 (13,00)
0.488 (12,40)
TAPE & REEL
4040001-3/C 10/01
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Tape and Reel information for the Format Lead Option package.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third-party products or services
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www.ti.com/digitalcontrol
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logic.ti.com
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power.ti.com
Optical Networking
Security
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www.ti.com/video
microcontroller.ti.com
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