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TLC7703IPWR Datasheet(PDF) 1 Page - Texas Instruments |
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TLC7703IPWR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 36 page DRB PACKAGE TLC7701, TLC7725, TLC7703 TLC7733, TLC7705 www.ti.com SLVS087M – DECEMBER 1994 – REVISED MARCH 2012 Micropower Supply Voltage Supervisors Check for Samples: TLC7701, TLC7725, TLC7703 , TLC7733, TLC7705 1 FEATURES • Power-On Reset Generator • Automatic Reset Generation After Voltage Drop • Precision Voltage Sensor • Temperature-Compensated Voltage Reference • Programmable Delay Time by External Capacitor • Supply Voltage Range . . . 2 V to 6 V • Defined RESET Output from VDD ≥ 1 V • Power-Down Control Support for Static RAM With Battery Backup • Maximum Supply Current of 16 µA • Power Saving Totem-Pole Outputs • Temperature Range . . . Up to –55°C to 125°C APPLICATIONS • Medical Imaging DESCRIPTION The TLC77xx family of micropower supply voltage supervisors provide reset control, primarily in microcomputer and microprocessor systems. During power-on, RESET is asserted when VDD reaches 1 V. After minimum VDD (≥2 V) is established, the circuit monitors SENSE voltage and keeps the reset outputs active as long as SENSE voltage (VI(SENSE)) remains below the threshold voltage. An internal timer delays return of the output to the inactive state to ensure proper system reset. The delay time, td, is determined by an external capacitor: td = 2.1 × 10 4 × C T Where CT is in farads td is in seconds SPACER Except for the TLC7701, which can be customized with two external resistors, each supervisor has a fixed sense threshold voltage set by an internal voltage divider. When SENSE voltage drops below the threshold voltage, the outputs become active and stay in that state until SENSE voltage returns above threshold voltage and the delay time, td, has expired. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 1994–2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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