FP6812

fitipower integrated technology lnc. FP6811/6812 Microprocessor Voltage Monitors with Manual Reset Description The FP6811 and FP6812 are cost-effective system supervisory circuits which are designed to monitor the power supply status in micro-processor (μP) and digital systems. In addition, they provide a de-bounced manual reset input pin to initiate a reset. These circuits assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. The FP6811-N has an open-drain output stage, while FP6811-C and FP6812-C have push-pull outputs. The FP6811-N’s open-drain output requires a pull-up resistor. The FP6811 has an active-low output while the FP6812 has an active-high RESET output. The FP6811 and FP6812 are optimized to reject fast transient glitches on the VCC line. A low supply current makes these devices suitable for portable equipment. Each device is available in SOT-23-5, SC-82 and SOT-143 packages. Pin Assignments S5 Package (SOT-23-5) VCC MR 54 1 23 NC GND RESET (RESET) C8 Package (SC-82) VCC MR 43 12 GND RESET (RESET) FP6811/6812-1.7-MAR-2012 Features ● Precision Monitoring of Power-Supply Voltage ● 140ms Guaranteed Minimum Reset Output Duration ● Low Supply Current ● VCC Transient Immunity ● Small SOT-23-5, SC-82 and SOT-143 Packages ● No External Components ● Guaranteed Reset Valid to VCC=1V ● Available in Three Output Configurations Open-Drain Out...