ELM7C377342xACMOS Voltage Detector with watchdog timer
ELM7C377342xA 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 |
| Package | SOP-8 150mil SOP-8 208mil SON8-3x3 |
| Datasheet | ELM7C377342series |
- 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 ELM7C377142xx/ELM7C377342xA 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
| Parameter | Symbol | Limit | Unit |
|---|---|---|---|
| Power supply | Vcc | 6.5 | V |
| Input voltage | Vs Vck | Vss-0.3 to Vcc+0.3 | V |
| RESET_B, RESET output Voltage | Voh | Vss-0.3 to Vcc+0.3 | V |
| Power dissipation | Pd | 300(SOP-8 150mil) 300(SOP-8 208mil) 500(SON8-3x3) | mW |
| Operating temperature | Top | -40 to +85 | °C |
| Storage temperature | Tstg | -55 to +125 | °C |
Block diagram
