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AD581
PRECISION HIGH CURRENT SUPPLY
The AD581 can be easily connected with power pnp or power
Darlington pnp devices to provide much greater output current
capability. The circuit shown in Figure 10 delivers a precision
10 V output with up to 4 A supplied to the load. The 0.1 μF
capacitor is required only if the load has a significant capacitive
component. If the load is purely resistive, improved high frequency
supply rejection results from removing the capacitor.
V IN ≥ 15V
CONNECTION FOR REDUCED PRIMARY SUPPLY
Whereas line regulation is specified down to 13 V, the typical
AD581 works as specified ≤12 V. The current sink capability
allows even lower supply voltage capability such as operation
from 12 V ±5% as shown in Figure 11. The 560 Ω resistor reduces
the current supplied by the AD581 to a manageable level at a
full 5 mA load. Note that the other band gap references, without
current sink capability, may be damaged by use in this circuit
configuration.
12V ±5%
470 ?
+V S
560 ? 5%
2N6040
AD581
GND
V OUT
10V @ 0mA TO 5mA
Figure 11. 12 V Supply Connection
0.1μF
+V S
AD581
V OUT
V OUT
10V @ 4A
GND
Figure 10. High Current Precision Supply
Rev. C | Page 8 of 12
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相关代理商/技术参数
AD581LH/+ 制造商:Rochester Electronics LLC 功能描述:- Bulk
AD581S 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 10 V IC Reference
AD581SH 功能描述:IC VREF SERIES PREC 10V TO-5-3 RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 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:带卷 (TR)
AD581SH/883 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD581SH/883B 制造商:Analog Devices 功能描述:V-Ref Precision 10V 10mA 3-Pin TO-5 Tube 制造商:Rochester Electronics LLC 功能描述:IC - 10V REFERENCE IC - Bulk 制造商:Analog Devices 功能描述:IC VOLT REF 10V 制造商:Analog Devices Inc. 功能描述:Voltage & Current References HI PREC 10V IC REF 制造商:Analog Devices Inc. 功能描述:Voltage & Current References IC - 10V REFERENCE IC
AD581SH/HR 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD581SH1 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 10 V IC Reference
AD581T 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 10 V IC Reference