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参数资料
| 型号： | PST620DDB |
| 厂商： | MITSUMI ELECTRIC CO LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DIP8 |
| 封装： | DIP-8 |
| 文件页数： | 5/6页 |
| 文件大小： | 361K |
| 代理商： | PST620DDB |
MITSUMI
System Reset (with battery back-up) PST620, 621
Timing Chart
VCC1
VCC2
CE
TC
RE
CE
4.2V
2.15V
VTX
Delay
Note : Connect VAC pin to VCC when not using.
AC power supply
AC rectifier or
regulator
primary side
Note 1: VTH is set at 2.0V and hysteresis voltage at 90mV.
1. Use a resistor to divide the detected voltage so that it equals VTH when monitoring regulator
primary side power supply.
2. When monitoring AC voltage rectified as in the application circuit, set so that it equals VTH by
lowering the constant and dividing with a resistor. Refer to application circuit diagram.
Note 2: VAC input and VS1 are OR, so either signal makes CE low when power outage is detected.
PST620
PST621
AC
VCC1
CE
MODE
VCC2
RESET
4.2V
3.1V
Application Circuits
VAC input : Power supply transformer secondary voltage detection
Products
to
be
discontinued
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PST621 | 制造商:MITSUMI 制造商全称:Mitsumi Electronics, Corp. 功能描述:System Reset (with battery back-up) Monolithic IC |
| PST623 | 制造商:MITSUMI 制造商全称:Mitsumi Electronics, Corp. 功能描述:System Reset |
| PST623XS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| PST623XW | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| PST-7 | 制造商:Panduit Corp 功能描述: |
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