TL7759 Datasheet | Texas Instruments

description The TL7759 is a supply-voltage supervisor designed for use as a reset controller in microputer and microprocessor systems. The supervisor monitors the supply voltage for undervoltage conditions. During power up, when the supply voltage, VCC, attains a value approaching 1 V, the RESET and RESET outputs bee active (high and low, respectively) to prevent undefined operation. If the supply voltage drops below the input threshold voltage level (VIT- ), the reset outputs go to the reset active state until the supply voltage has returned to its nominal value (see timing diagram). The TL7759C is characterized for operation from 0°C to 70°C. AVAILABLE OPTIONS PACKAGED DEVICES SMALL OUTLINE (D) PLASTIC DIP (P) SHRINK SMALL OUTLINE (PW) CHIP FORM (Y) 0°C to 70°C TL7759CD TL7759CP TL7759CPW TL7759Y The D and PW packages are available taped and reeled. Add the suffix R to the device type (e.g., TL7759CDR). Chip forms are tested at 25°C. functional block diagram 5 VCC + - Reference Voltage 7 RESET 8 RESET 4 GND 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. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. - POST OFFICE BOX 655303 DALLAS, TEXAS 75265 Copyright © 1999, Texas Instruments Incorporated 1 TL7759 SUPPLY-VOLTAGE SUPERVISORS SLVS042D - JANUARY 1991 - REVISED JULY 1999 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) - - - - - - - - - - - - 20 V Off-state output voltage range: RESET voltage - - . . . ....