MAX8211MJA
数据手册.pdf微处理器电压监控，可编程电压检测 Microprocessor Voltage Monitors with Programmable Voltage Detection
General Description
Maxim’s MAX8211 and MAX8212 are CMOS micropower voltage detectors that warn microprocessors µPs of power failures. Each contains a comparator, a 1.5V bandgap reference, and an open-drain n-channel output driver. Two external resistors are used in conjunction with the internal reference to set the trip voltage to the desired level. A hysteresis output is also included, allowing the user to apply positive feedback for noise-free output switching.
Features
♦ µP Power-Fail Warning
♦ Improved 2nd Source for ICL8211/ICL8212
♦ Low-Power CMOS Design
♦ 5µA Quiescent Current
♦ On-Board Hysteresis Output
♦ ±40mV Threshold Accuracy ±3.5%
♦ 2.0V to 16.5V Supply-Voltage Range
♦ Define Output Current Limit MAX8211
♦ High Output Current Capability MAX8212
Applications
µP Voltage Monitoring
Undervoltage Detection
Overvoltage Detection
Battery-Backup Switching
Power-Supply Fault Monitoring
Low-Battery Detection
