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PST9121 参数 Datasheet PDF下载

PST9121图片预览
型号: PST9121
PDF下载: 下载PDF文件 查看货源
内容描述: 系统复位 [System Reset]
分类和应用:
文件页数/大小: 3 页 / 67 K
品牌: MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
 浏览型号PST9121的Datasheet PDF文件第2页浏览型号PST9121的Datasheet PDF文件第3页  
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
I
CCH
=1.5µA typ. I
CCL
=1.0µA 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
5
1
2
3
1
2
3
V
OUT
V
CC
GND
1
2
4
1
2
NC
SUB
GND
V
OUT
V
CC
3
3
4
5
SOT-25A
TO-92A
(Note) The pin 2 of SOT-25 package is a SUB terminal. Connect it to GND.