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参数资料
| 型号： | PST9121 |
| 厂商： | MITSUMI ELECTRIC CO LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 |
| 封装： | TO-92A, 3 PIN |
| 文件页数： | 1/3页 |
| 文件大小： | 47K |
| 代理商： | PST9121 |
MITSUMI
System Reset PST91XX
System Reset
Monolithic IC PST91XX Series
Outline
The function of this low reset type IC is to accurately reset systems after detecting the supply voltage at the
time of switching power on and instantaneous power off in various CPU and other logic systems. Further, this
IC, with its super low consumption current and high precision voltage detection capacity, is most suited as a
voltage check circuit for a number of products which use batteries.
Features
1. High precision voltage detection
Vs±3% max.
2. Super low current consumption
ICCH=1.5A typ. ICCL=1.0A typ.
3. Low operating threshold voltage
0.65V typ.
4. Hysteresis voltage is provided as a detect voltage
50mV typ.
5. Large output current at the time ON
15mA typ.
6. The detect voltage can be selected at your discretion at 0.1V step within the range of 1.9 to 4.6V by the
following stipulation method.
PST91XX
Detected voltage value
(Example : for 4.2V PST9142)
Package
TO-92A (PST91
)
SOT-25A (PST91
N)
Applications
1. Reset circuits for microcomputers, CPU and MPU.
2. Reset circuit for logic circuitry.
3. Battery voltage check circuit.
4. Circuit for changing over to backup battery.
5. Level detecting circuit.
Pin Assignment
12
3
TO-92A
54
12
3
SOT-25A
(TOP VIEW)
(Note) The pin 2 of SOT-25 package is a SUB terminal. Connect it to GND.
1
VOUT
2
VCC
3
GND
1
NC
2
SUB
3
GND
4
VOUT
5
VCC
相关PDF资料 |
PDF描述 |
|---|---|
| PST9127N | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| PST9125N | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| PST9143 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 |
| PST9123 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 |
| PST9123N | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PST9121N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| PST9122 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| PST9122N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| PST9123 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| PST9123N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
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