LTC691
Overview
The LTC®690 family, LTC690/LTC691/LTC694/LTC695, provides complete power supply monitoring and battery control functions for microprocessor reset, battery backup, CMOS RAM write protection, power failure warning and watchdog timing. A precise internal voltage reference and comparator circuit monitor the power supply line.
- Guaranteed Reset Assertion at VCC = 1V
- 1.5mA Maximum Supply Current
- Fast (35ns Max) Onboard Gating of RAM Chip Enable Signals
- SO-8 and S16 Packaging
- 4.65V Precision Voltage Monitor
- Power OK/Reset Time Delay: 50ms, 200ms or Adjustable
- Minimum External Component Count
- 1µA Maximum Standby Current
- Voltage Monitor for Power-Fail or Low Battery Warning
- Thermal Limiting
