HT7033S

The UMW HT70xx series is a three-terminal low-voltage detector implemented in CMOS technology. This series can detect fixed voltages ranging from 2.2V to 5V. The detector consists of four sections: a high-precision, low-power voltage reference, a comparator, a hysteresis circuit, and an output driver. CMOS technology ensures low power consumption. Although the detector is primarily designed for fixed-voltage detection, it can also detect user-specified threshold voltages via external components (applicable to NMOS open-drain type only).

Applications

• Battery detector, level selector
• Power failure detector
• Microprocessor reset

Key features

• Low power consumption, typical: 2.0uA
• Wide operating voltage range: 1.5V~12V
• Low temperature drift detection voltage, typical ±50ppm/°C
• Built-in hysteresis
• High-accuracy voltage detection: ±3%
• Small packages: SOT-89, TO-92, SOT-23