ADCMP671-1YUJZ-RL7 Supervisory Circuits Low Power Adjustable UV And OV Monitor ICS

ADCMP671-1YUJZ-RL7 Supervisory Circuits Low Power Adjustable UV and OV Monitor

DESCRIPTION

The ADCMP671 voltage monitor consists of two low power, highaccuracy comparators and reference circuits.

It operates on asupply voltage from 1.7 V to 5.5 V and draws 17 μA maximum,making it suitable for low

power system monitoring and portableapplications. The part is designed to monitor and report supply under

voltage and overvoltage fault. The low input bias currentand voltage reference allows resistor adjustable UV

and OVthreshold down to 400 mV. The ADCMP671 has two opendrain outputs: the PWRGD output indicates

that the supply iswithin the UV and OV window, and the OV output indicatesthat the supply is overvoltage.

This output combination allowsusers to window monitor N supplies with an N + 1 processorinput/output (I/O).

Each output is guaranteed to sink greaterthan 5 mA over temperature.The ADCMP671 is available in 6-lead

TSOT package. Thedevice operates over the −40°C to +125°C temperature range.

FEATURES

• ​Window monitoring with minimum processor I/O
• Individually monitoring N rails with only N + 1 processor I/O
• 400 mV, ± 0.275% threshold at VDD = 3.3 V, 25°C
• Supply range: 1.7 V to 5.5 V
• Low quiescent current: 17 μA maximum at 125°C
• Input range includes ground
• Internal hysteresis: 9.2 mV typical
• Low input bias current: 2.5 nA maximum
• Open-drain outputsPower good indication output
• Designated over voltage indication output
• Low profile (1 mm), 6-lead TSOT package

​​APPLICATIONS

• Supply voltage monitoring
• Li-Ion monitoring
• Portable applications
• Handheld instruments