QNHCHIP QN7050A-1

The QN70XX series is a three-terminal low-voltage detector implemented in CMOS technology. This series detects fixed voltages ranging from 2.2V to 7V, and consists of four components: a high-precision, low-power reference voltage source, 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 through external components (NMOS open-drain type only).

• Low power consumption, typical: 2.0μA
• Built-in hysteresis
• Wide operating voltage range: 1.5V~12V
• High-accuracy voltage detection: ±3%
• Low temperature drift detection voltage: typical ±50ppm/℃
• Compact package: SOT23-3, SOT89-3, TO92

• Battery detector, level selector
• Non-volatile RAM signal storage protector
• Power-fail detector
• Battery backup storage
• Microprocessor reset