参数资料
型号: ZR431CSTZ
厂商: Diodes Inc
文件页数: 3/9页
文件大小: 0K
描述: IC VREF SHUNT PREC ADJ TO-92-3
标准包装: 1,500
基准类型: 旁路,可调节,精度
输出电压: 2.5 V ~ 20 V
容差: ±2%
温度系数: 55ppm/°C
输入电压: 最高 20V
通道数: 1
电流 - 阴极: 50µA
电流 - 输出: 100mA
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: TO-226-3、TO-92-3(TO-226AA)成形引线
供应商设备封装: TO-92-3
包装: 带盒(TB)
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
DC Test Circuits
Input
I L
V Z
Input
I L
V Z
Input
V Z
I ZOFF
I REF
V REF
I Z
R1
R2
I REF
V REF
I Z
Fig. 1 Test Circuit for V Z = V REF
Fig. 2 Test Circuit for V Z > V REF
Fig.3 Test Circuit for Off State Current
Deviation of reference input voltage, V DEV , is defined as the maximum variation of the reference input voltage over the full
temperature range.
The average temperature coefficient of the reference input voltage, V REF is defined as:
V ref ( ppm / C ) =
V MAX
o
V dev × 1000000
V ref ( T 1 ? T 2 )
The dynamic output impedance, RZ is defined as:
Δ V z
Δ I z
V MIN
V DEV = V MAX - V MIN
R z =
When the device is programmed with two external resistors,
R1 and R2, (Fig 2), the dynamic output impedance of the
overall circuit, R’, is defined as:
R ′ = R z ( 1 +
R1
R 2
)
T1
Temperature
T2
ZR431
Document number: DS33255 Rev. 6 - 2
3 of 9
October 2011
? Diodes Incorporated
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