HG809TM3/TR

HGSEMI Semiconductor Co., Ltd.
HG809/HG810 3-Pin Microprocessor Reset Monitors The HG809 and HG810 are cost–effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 20 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a min...
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HG809/HG810 3-Pin Microprocessor Reset Monitors The HG809 and HG810 are cost–effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 20 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a minimum of 140msec after VCC rises above the reset threshold. The HG810 has an active–high RESET output while the HG809 has an active–low RESET output. The output of the HG809 is guaranteed valid down to VCC = 1V. Both devices are available in a SOT–23 package. The HG809/810 are optimized to reject fast transient glitches on the VCC line. Low supply current of 17µA (VCC = 3.3V) makes these devices suitable for battery powered applications. Features • Precision VCC Monitor for 3.0V, 3.3V, and 5.0V Supplies • 140msec Guaranteed Minimum RESET, RESET Output Duration • RESET Output Guaranteed to VCC = 1.0V (HG809) • Low 17µA Supply Current • VCC Transient Immunity • Small SOT–23 Package • No External Components • Wide Operating Temperature: –40°C to 85°C SOT–23 (TO–236) CASE 318 PIN CONFIGURATION (Top View) GND 1 3 RESET (RESET)** VCC 2 SOT–23* NOTE: *SOT–23 is equivalent to JEDEC (TO–236) ** RESET is for HG809 ** RESET is for HG810 NOTE: The ”x” denotes a suffix for VCC threshold – see table below Typical Applications • Computers • Embedded Systems • Battery Powered Equipment • Critical µP Power Supply Monitoring Suffix L M J* T S R TYPICAL APPLICATION DIAGRAM VCC Reset VCC Threshold (V) 4.63 4.38 4.00 3.08 2.93 2.63 NOTE: *J version is available for HG809 only VCC HG809 RESET GND http://www.hgsemi.com.cn VCC PROCESSOR RESET INPUT GND 1 2018 AUG PDF
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Дата модификации: 28.06.2021

Размер: 844.4 Кб

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