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전자부품 데이터시트 검색엔진 |
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TCM809 데이터시트(HTML) 1 Page - Microchip Technology |
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TCM809 데이터시트(HTML) 1 Page - Microchip Technology |
1 / 14 page ![]() 2004 Microchip Technology Inc. DS21661C-page 1 TCM809/TCM810 Features • Precision VDD Monitor for 2.5V, 3.0V, 3.3V, 5.0V Nominal System Voltage Supplies • 140 msec Minimum RESET Time Out Period • RESET Output to VDD = 1.0V (TCM809) • Low Supply Current, 9 µA (typ.) •VDD Transient Immunity • Small 3-Pin SC-70 and SOT-23B Packages • No External Components • Push-Pull RESET Output • Temperature Range: - Industrial, SC-70 (E): -40 °C to +85°C - Extended, SOT-23, SC-70 (V): -40 °C to +125°C Applications • Computers • Embedded Systems • Battery-Powered Equipment • Critical Microcontroller Power Supply Monitoring • Automotive Typical Application Circuit General Description The TCM809 and TCM810 are cost-effective system supervisor circuits designed to monitor VDD in digital systems and provide a reset signal to the host proces- sor, when necessary. No external components are required. The RESET output is typically driven active within 65 µsec of VDD falling through the reset voltage thresh- old. RESET is maintained active for a minimum of 140 msec after VDD rises above the reset threshold. The TCM810 has an active-high RESET output, while the TCM809 has an active-low RESET output. The out- put of the TCM809/TCM810 is valid down to VDD = 1V. Both devices are available in 3-Pin SC-70 and SOT-23B packages. The TCM809/TCM810 is optimized to reject fast transient glitches on the VDD line. A low supply current of 9 µA (typ., VDD = 3.3V) make these devices suitable for battery-powered applications. Pin Configurations 1 TCM809 V DD V DD V DD RESET RESET INPUT (Active-Low) GND GND PICmicro® Microcontroller 3 2 SOT-23B/SC-70 Note: 3-Pin SOT-23B is equivalent to V DD TCM809 RESET GND 1 2 TCM810 (RESET) 3 JEDEC TO-236. 3-Pin Microcontroller Reset Monitors |