LM3710 Datasheet | Texas Instruments

FEATURES - 2 Standard Reset Threshold Voltage: 3.08V - Custom Reset Threshold Voltages: For other voltages between 2.2V and 5.0V in 10m V increments, contact TI - No External ponents Required - Manual-Reset Input - RESET (LM3710) or RESET (LM3711) Outputs - Precision Supply Voltage Monitor - Factory Programmable Reset and Watchdog Timeout Delays - Separate Power Fail parator - Available in DSBGA Package for Minimum Footprint - ±0.5% Reset Threshold Accuracy at Room Temperature - ±2% Reset Threshold Accuracy Over Temperature Extremes - Reset Assertion Down to 1V VCC (RESET Option Only) - 28 µA VCC Supply Current APPLICATIONS - Embedded Controllers and Processors - Intelligent Instruments - Automotive Systems - Critical µP Power Monitoring DESCRIPTION The LM3710/LM3711 series of microprocessor supervisory circuits provide the maximum flexibility for monitoring power supplies and battery controlled functions in systems without backup batteries. The LM3710/LM3711 series are available in VSSOP-10 and 9-bump DSBGA packages. Built-in features include the following: Reset: Reset is asserted during power-up, powerdown, and brownout conditions. RESET is ensured down to VCC of 1.0V. Manual Reset Input: An input that asserts reset when pulled low. Power-Fail Input: A 1.225V threshold detector for power fail warning, or to monitor a power supply other than VCC. Low Line Output: This early power failure warning indicator goes low when the supply voltage drops to a value which is 2% higher than the reset threshold voltage. Watchdog Timer: The WDI (Watchdog Input) monitors one of the µP's output lines for activity. If no output transition occurs during the watchdog timeout period, reset is activated. Typical Application VIN1 VIN2 VCC PFI Reset WDI PFO MR LLO VCC Reset INT GND...