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参数资料
| 型号： | MB3790PFT |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20 |
| 封装： | PLASTIC, TSSOP-20 |
| 文件页数： | 9/22页 |
| 文件大小： | 192K |
| 代理商： | MB3790PFT |
MB3790
17
4.
Adjusting the Supply Voltage Detection Level Set time
The MB3790 outputs a reset signal when the power supply momentarily goes down or its voltage sags for 5
s or
more. The set time before this reset signal is output can be extended by connecting a capacitor to the VSENSE pin.
5.
Compatibility with JEIDA Memory Card Guideline Ver. 4
The MB3790 has its ALM1 and ALM2 pin specifications matched to the BVD2 and BVD1 pin specifications of the
JEIDA Memory Card Guideline Ver. 4. Therefore, the ALM1 and ALM2 pins can be connected directly to the BVD2
and BVD1 pins.
Alarm Pin Detection Voltage Levels
VBAT1: Primary battery voltage
Pin Name
VBAT1
≤ 2.37 V
2.37 V < VBAT1
≤ 2.65V
2.65 V
≤ VBAT1
Connected Pin
ALM1
Low level
High level
BVD2
ALM2
Low level
High level
BVD1
Adjusting the Supply Voltage Detection Level Set Time
V IN
VSENSE
C
GND
5V
4V
t PI
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