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参数资料
| 型号： | R5108G43A-TR |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | 2.90 X 4 MM, 0.65 MM PITCH, SSOP-8 |
| 文件页数： | 1/13页 |
| 文件大小： | 358K |
| 代理商： | R5108G43A-TR |
Microprocessor Supervisory Circuit
R5108G SERIES
NO. EA-171-080602
1
OUTLINE
The R5108G Series are CMOS-based con supervisory circuit, or high accuracy and ultra low supply current
voltage detector with built-in delay and watchdog timer. When the SENSE voltage is down across the threshold,
or the watchdog timer does not detect the system clock from the
con, the reset output is generated. The
voltage detector circuit is used for the system reset, etc. The detector threshold is fixed internally, and the
tolerance is
±1.0%. The released delay time (Power-on Reset Delay) circuit is built-in, and output delay time is
adjustable with an external capacitor. When the sense voltage becomes the released voltage, the reset state will
be maintained during the delay time. The time out period of the watchdog timer can be also set with an external
capacitor. The output type of the reset is selectable, Nch open-drain, or CMOS. There is a function to stop
supervising clock by the watchdog timer (INH function). A necessary voltage source can be supervised with
SENSE pin. The package is small SSOP-8G.
FEATURES
Built-in a watchdog timer's time out period accuracy
±30%
Timeout period for watchdog and generating a reset signal can be set by an external capacitor
Detector Threshold Voltage 0.1V stepwise setting in the range from 1.5V to 5.5V
Supply current Typ. 11A
Operating Voltage 1.5V to 6.0V
High Accuracy Output Voltage of Detector Threshold ±1.0%
Power-on Reset Delay Time accuracy ±20%
Power-on reset delay time of the voltage detector can be set with an external capacitor.
Small Package SSOP-8G (0.65mm pitch)
APPLICATION
Supervisory circuit for equipment with using microprocessors.
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