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| 型号： | AD581KH |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 10V TO-5-3 |
| 标准包装： | 1 |
| 基准类型： | 串联，精度 |
| 输出电压： | 10V |
| 容差： | ±10mV |
| 温度系数： | 15ppm/°C |
| 输入电压： | 12 V ~ 30 V |
| 通道数： | 1 |
| 电流 - 静态： | 1mA |
| 电流 - 输出： | 10mA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-205AA，TO-5-3 金属罐 |
| 供应商设备封装： | TO-5-3 |
| 包装： | 散装 |
| 产品目录页面： | 795 (CN2011-ZH PDF) |
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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