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| 型号： | LM431SCCMLX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT ADJ SOT89-3 |
| 产品变化通告： | Lead Dimensions Change 19/April/2007 |
| 标准包装： | 1 |
| 基准类型： | 分流器，可调式 |
| 输出电压： | 2.495 V ~ 36 V |
| 容差： | ±0.5% |
| 温度系数： | 标准值 50ppm/°C |
| 输入电压： | 2.495 V ~ 36 V |
| 通道数： | 1 |
| 电流 - 阴极： | 1mA |
| 电流 - 输出： | 100mA |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-243AA |
| 供应商设备封装： | SOT-89-3 |
| 包装： | 标准包装 |
| 其它名称： | LM431SCCMLXDKR |
Electrical Characteristics (6, 7) (Continued)
Values are at T A = 25°C unless otherwise noted.
Symbol
V REF
Parameter
Reference Input Voltage
Conditions
V KA = V REF , I KA = 10 mA
LM431SAI
Min. Typ. Max.
2.450 2.500 2.550
Unit
V
V REF(dev)
Deviation of Reference
Input Voltage Over-
Temperature
Ratio of Change in
V KA = V REF , I KA = 10 mA,
T MIN ≤ T A ≤ T MAX
Δ V KA = 10 V - V REF
5
-1.0
20
-2.7
mV
Δ V REF / Δ V KA
Reference Input Voltage
to Change in Cathode
Voltage
I KA = 10 mA
Δ V KA = 36 V - 10 V
-0.5
-2.0
mV/V
I REF
I REF(dev)
I KA(MIN)
I KA(OFF)
Z KA
Reference Input Current
Deviation of Reference
Input Current Over Full
Temperature Range
Minimum Cathode
Current for Regulation
Off -Stage Cathode
Current
Dynamic Impedance
I KA = 10 mA, R 1 =10 K Ω , R 2 = ∞
I KA = 10 mA, R 1 = 10 K Ω , R 2 = ∞,
T MIN ≤ T A ≤ T MAX
V KA = V REF
V KA = 36 V, V REF = 0
V KA = V REF , I KA = 1 to 100 mA,
f ≥ 1.0 kHz
1.5
0.8
0.45
0.05
0.15
4.0
2.0
1.00
1.00
0.50
μ A
μ A
mA
μ A
Ω
Notes:
6. T MIN = -40 ° C, T MAX = +85 ° C.
7. The deviation parameters V REF(dev) and I REF(dev) are defined as the differences between the maximum and minimum
values obtained over the rated temperature range. The average full-range temperature coefficient of the reference
input voltage, α V REF , is defined as:
? ---------------------------------------- ? ? 10 6
α V REF ? ? ? ? = ------------------------------------------------------------
? V REF ( at25 ° C ) ?
----------- -
ppm
° C T MAX – T MIN
V REF ( dev )
V REF(min)
V REF(dev)
V REF(max)
T MAX -T MIN
where T MAX -T MIN is the rated operating free-air temperature range of the device.
α V REF can be positive or negative, depending on whether minimum V REF or maximum V REF , respectively, occurs at
the lower temperature.
Example: V REF(dev) = 4.5 mV, V REF = 2500 mV at 25 ° C, T MAX -T MIN = 125 ° C for LM431SAI.
? ------------------------ ? ? 10 6
125 ° C
α V REF
4.5mV
? 2500mV ?
= -------------------------------------------- = 14.4ppm ? ° C
Because minimum V REF occurs at the lower temperature, the coefficient is positive.
? 2004 Fairchild Semiconductor Corporation
LM431SA / LM431SB / LM431SC Rev. 1.3.2
4
www.fairchildsemi.com
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| LM431Z-XX-AR | 制造商:TAITRON 制造商全称:TAITRON Components Incorporated 功能描述:Shunt Regulator |
| LM431Z-XX-BL | 制造商:TAITRON 制造商全称:TAITRON Components Incorporated 功能描述:Shunt Regulator |
| LM431Z-XX-TR30 | 制造商:TAITRON 制造商全称:TAITRON Components Incorporated 功能描述:Shunt Regulator |
| LM431Z-XX-TR70 | 制造商:TAITRON 制造商全称:TAITRON Components Incorporated 功能描述:Shunt Regulator |
| LM431Z-XX-TU | 制造商:TAITRON 制造商全称:TAITRON Components Incorporated 功能描述:Shunt Regulator |
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