ELM7C377142xA CMOS voltage detector, 2 channels, 18V operation, reset hold by ext.C
ELM7C377142xA is a 18V operation CMOS voltage detector for independent 2 lines power monitoring. It detects abnormalities such as power supply voltage interruptions or drops, and generates a reset signal. In addition to the 5V power supply line, VSB input can work for the another power supply line detection, and a reset signal is holded some period determined by an exterral capacitor.
| Detection voltage with hysteresis function. | |
|---|---|
| A reference voltage output capability. | |
| Minimal external parts(one capacitor). | |
| Over voltage detector. | |
| Accurate voltage detection | 4.2V±2.5% |
| Detection voltage adjustable with 2 external resistors | 1.180V±1.5% |
| Monitoring of two power supply lines | +5 and an arbitrary voltage |
| Low voltage reset signal holding | Typ.0.8V |
| Low power dissipation | Typ.65µA(Vcc=5V) |
| Package | SOP-8 150mil SOP-8 208mil SON8-3x3 |
| Datasheet | ELM7C377142series |
- Application
- Reset 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 ELM7C377142xA/ELM7C377342xA is new product developed in-house, the power consumption is a quarter of the conventional product.
Absolute Maximum Ratings
| Parameter | Symbol | Limit | Unit |
|---|---|---|---|
| Power supply | Vcc | 20 | V |
| Input voltage | Vsa | Vss-0.3 to Vcc+0.3(<+8.00) | V |
| Input voltage | Vsb Vsc | Vss-0.3 to +8.0 | V |
| RESET_B Output voltage | Voh | Vss-0.3 to Vcc+0.3(<+5.5) | V |
| OUTC Output voltage | Voh | Vss-0.3 to Vcc+0.3(<+5.5) | V |
| Power dissipation | Pd | 680(SOP-8) 600(SON8-3x3) | mW |
| Operating temperature | Top | -40 to +85 | °C |
| Storage temperature | Tstg | -55 to +150 | °C |
Block diagram
