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參數(shù)資料
| 型號： | LM431BIMX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.495 V, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 872K |
| 代理商： | LM431BIMX/NOPB |
Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
65C to +150C
Operating Temperature Range
Industrial (LM431xI)
40C to +85C
Commercial (LM431xC)
0C to +70C
Soldering Information
Infrared or Convection (20 sec.)
235C
Wave Soldering (10 sec.)
260C (lead temp.)
Cathode Voltage
37V
Continuous Cathode Current
10 mA to +150
mA
Reference Voltage
0.5V
Reference Input Current
10 mA
Internal Power Dissipation (Notes 3,
TO-92 Package
SO-8 Package
SOT-23 Package
0.78W
0.81W
0.28W
micro SMD Package
0.30W
Operating Conditions
Min
Max
Cathode Voltage
V
REF
37V
Cathode Current
1.0 mA
100 mA
LM431
Electrical Characteristics
T
A = 25C unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
REF
Reference Voltage
V
Z =VREF,II = 10 mA
2.440
2.495
2.550
V
LM431A (Figure 1 )
V
Z =VREF,II = 10 mA
2.470
2.495
2.520
V
LM431B (Figure 1 )
V
Z =VREF,II = 10 mA
2.485
2.500
2.510
V
LM431C (Figure 1 )
V
DEV
Deviation of Reference Input Voltage Over
V
Z =VREF,II = 10 mA,
8.0
17
mV
Temperature (Note 5)
T
A = Full Range (Figure 1 )
Ratio of the Change in Reference Voltage
I
Z =10mA
V
Z from VREF to 10V
1.4
2.7
mV/V
to the Change in Cathode Voltage
(Figure 2 )V
Z from 10V to 36V
1.0
2.0
I
REF
Reference Input Current
R
1 =10k
,R
2 = ∞,
2.0
4.0
A
I
I =10mA (Figure 2 )
∝I
REF
Deviation of Reference Input Current over
R
1 =10k
,R
2 = ∞,
Temperature
I
I = 10 mA,
0.4
1.2
A
T
A = Full Range (Figure 2 )
I
Z(MIN)
Minimum Cathode Current for Regulation
V
0.4
1.0
mA
I
Z(OFF)
Off-State Current
V
0.3
1.0
A
r
Z
Dynamic Output Impedance (Note 6)
V
Z =VREF, LM431A,
0.75
Frequency=0Hz (Figure 1 )
V
Z =VREF, LM431B, LM431C
0.50
Frequency=0Hz (Figure 1 )
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
beyond its rated operating conditions.
Note 3: TJ Max = 150C.
Note 4: Ratings apply to ambient temperature at 25C. Above this temperature, derate the TO-92 at 6.2 mW/C, the SO-8 at 6.5 mW/C, the SOT-23 at 2.2 mW/C
and the micro SMD at 3mW/C.
Note 5: Deviation of reference input voltage, VDEV, is defined as the maximum variation of the reference input voltage over the full temperature range.
LM431
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM431BIZ | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Prog Shunt 1% RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM431BIZ/NOPB | 功能描述:IC VREF SHUNT PREC ADJ TO-92-3 RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 基準(zhǔn)類型:串聯(lián)，精度 輸出電壓:4.5V 容差:±800µV 溫度系數(shù):1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數(shù):1 電流 - 陰極:- 電流 - 靜態(tài):7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應(yīng)商設(shè)備封裝:20-CLCC 包裝:管件 |
| LM431BIZ/T2 | 制造商:Texas Instruments 功能描述:V-Ref Adjustable 2.495V to 37V 100mA 3-Pin TO-92 T/R |
| LM431BIZX | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Shunt Regulator 2.5V Programmable RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM431BIZXA | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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