参数资料
型号: AS1922-18-T
厂商: ams
文件页数: 3/15页
文件大小: 0K
描述: IC SUPERVISOR OPEN-DRAIN SOT23-5
标准包装: 1
类型: 多压监控器
监视电压数目: 3
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 最小为 140 ms
电压 - 阀值: 1.683V,2.805V,可调
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 标准包装
其它名称: AS1922-18-TDKR
AS1920/AS1922
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 2. Pin Descriptions
RESETN 1
GND 2
V CCA 3
AS1920/
AS1922
5 V CC3
4 V CC18
Pin Number
1
2
3
4
5
Pin Name
RESETN
GND
V CCA
V CC18
V CC3
Description
Reset Logic Outpu t. This active-low pin serves as the 3V push/pull reset
output. A reset is asserted when any one of the supplies are below its
respective trip threshold and the reset is held for 200ms after all power supplies
have stabilized.
Ground .
V CCA . 1V sense, high-impedance input.
Note: If this pin is not used it should be tied to V CC3 or V CC18 .
V CC18 . 1.8V sense input and power detect pin (AS1920-18, AS1922-18). This
pin provides power to the output reset stage of the device in order to assert a
valid reset when the voltage on the primary input is down.
Note: Bypass this pin to GND with a ≥ 0.1μF ceramic capacitor.
V CC3 . 3V sense input and power supply pin (AS1920-18, AS1922-18). This pin
provides power to the device.
Note: Bypass this pin to GND with a ≥ 0.1μF ceramic capacitor.
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