R5108 Series

Watchdog Timer Equipped with SENSE Pin with VD

Download Datasheet

Description

The R5108 Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip.

R5108 monitors the power system of devices equipped with microprocessors and prevents system runaway with a reset signal when a malfunction occurs. R5108 is equipped with the function that inhibits clock monitoring of the WDT (INH). Since R5108 has a SENSE pin for monitoring voltage separately from the power pin, its reset signal does not become unstable under the condition that the power supply is sufficient to operate the IC, and the "L" can be maintained.

Spec

	Consumer	Industrial	Automotive
Input Voltage Range	1.5 V to 6.0 V (7.0 V)
Operating Temperature Range	-40°C to 105°C (125°C)	-40°C to 125°C (150°C)	-40°C to 125°C (150°C) -40°C to 105°C (150°C)
Supply Current	Typ. 11 µA
Timeout Period	Typ. 310 ms (CTW = 0.1 µF)
Timeout Period Accuracy	±33%
Reset Time	Typ. 34 ms (CTW = 0.1 µF)
Package	SSOP-8G
VD Detector Threshold Range	1.5 V to 5.5 V (0.1 V step)
VD Detector Threshold Accuracy	±1.0%
VD Detector Threshold Temperature Coefficient	Typ. ±100 ppm/°C
VD Release Output Delay Time	Typ. 370 ms (CD = 0.1 µF)
VD Release Delay Time Accuracy	±16%	±18%	±18% (−40°C ≤ Ta ≤ 125°C) ±16% (−40°C ≤ Ta ≤ 105°C)

Download Datasheet

Quality &
Packages

Product Name	Package	Marking	Reliability
R5108Gxx1x-TR-FE	SSOP-8G	R5108G	R5108G-FE
R5108Gxx1x-TR-YE	SSOP-8G	R5108G	R5108G-YE
R5108Gxx1x-TR-JE	SSOP-8G	R5108G	R5108G-JE
R5108Gxx1x-TR-AE	SSOP-8G	R5108G	R5108G-AE

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.