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FP6809 Datasheet(PDF) 1 Page - Fitipower Integrated Technology Inc. |
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FP6809 Datasheet(HTML) 1 Page - Fitipower Integrated Technology Inc. |
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1 / 9 page  1 FP6809/6810-1.6-JUL-2014 FP6809/6810 fitipower integrated technology lnc. 3-Pin Microprocessor Reset Circuits Description The FP6809 and FP6810 are cost-effective system supervisory circuits which are designed to monitor micro-processor voltage and VCC in digital systems. They provide a reset signal to the host processor when necessary. These circuits assert a reset signal whenever the VCC supply voltage declines below a preset threshold. They keep reset signal asserted for at least 140ms after VCC has risen above the reset threshold. The FP6809-N has an open-drain output stage which requires a pull-up resistor while FP6809-C and FP6810-C have push-pull outputs. The FP6809 has an active-low output while the FP6810 has an active-high RESET output. The FP6809 and FP6810 are optimized to reject fast transient glitches on the VCC line. Low supply current makes these devices suitable for portable equipments. Features Precision Monitoring of Power-Supply Voltage 140ms Guaranteed Minimum Reset Output Duration Low Supply Current VCC Transient Immunity Small SOT-23-3 Package No External Components Guaranteed Reset Valid to VCC=1V Available in Three Output Configurations Open-Drain Output (FP6809-N) Push-Pull Output (FP6809-C) Push-Pull RESET Output (FP6810-C) RoHS Compliant Applications Computer Battery Powered Equipment Microprocessor Power Supply Monitoring Embedded System Automotive Pin Assignments S3 Package (SOT-23-3) 1 2 3 GND RESET (RESET) VCC Figure 1. Pin Assignment of FP6809/FP6810 Ordering Information FP6809/10- □□□□□ TR: Tape/Reel P: Green G: Green Package Type S3: SOT-23-3 N: Open-Drain (FP6809 only) C: Push-Pull Reset Voltage: 23: 2.32V 40: 4.00V 26: 2.63V 44: 4.38V 29: 2.93V 46: 4.63V 31: 3.08V FP6809: Active Low Reset FP6810: Active High Reset Note1: Please consult Fitipower sales office or authorized distributors for availability of special reset voltages. |
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