ELM7C377342PACMOS Voltage Detector with watchdog timer

ELM7C377342PA is Power supply monitoring IC that instantaneously detects abnormalities such as instantaneous interruption or drop of power supply voltage and generates a reset signal. Since the watchdog timer is built in, various microcomputer systems can have a fail-safe function. It has output of both logic of RESET_B and Reset output with internal pull-up. In addition, the reference amplifier outputs the correct reference voltage externally.

Detection voltage with hysteresis function.
Watchdog timer by edge trigger input built in.
Minimal external parts( one capacitor).
Reset signal of both positive and negative logic outputs.
Detect accurate
supply voltage drop
4.2V±2.5%
Accurate reference
voltage output
1.245V±1.45%
Low reset minimal
power supply voltage
Typ.0.8V
PackageSOP-8 208mil
DatasheetELM7C377342PA
(Under process)
Application
Rest for Microprocessor, etc.
Power voltage monitoring IC (Reset IC) ELM 7C series)
This product is alternative parts that “C” company have discontinued a selling.Please contact us once, if you have trouble with parts procurement.
In addition, since ELM7C377142Px/ELM7C377342PA is new product developed in-house, the power consumption is a quarter of the conventional product.
We have begun accepting sample requests since February 2018. Please feel free to contact us. Mass production is planned from September 2018

Absolute Maximum Ratings

ParameterSymbolLimitUnit
Power supplyVcc6.5V
Input voltage Vs
Vck
Vss-0.3 to Vcc+0.3V
RESET_B, RESET output VoltageVohVss-0.3 to Vcc+0.3V
Power dissipationPd300mW
Operating temperatureTop-40 to +85°C
Storage temperatureTstg-55 to +125°C

Block diagram

block-diagram