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TL7770-12Y 데이터시트(PDF) 6 Page - Texas Instruments |
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TL7770-12Y 데이터시트(HTML) 6 Page - Texas Instruments |
6 / 9 page TL7770-5, TL7770-12 DUAL POWER-SUPPLY SUPERVISORS SLVS019F – OCTOBER 1987 – REVISED JULY 1999 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating conditions (unless otherwise noted) supply supervisor section PARAMETER TEST CONDITIONS TL7770-5Y TL7770-12Y UNIT CONDITIONS MIN TYP† MAX TL7770-5 (5-V sense, 1VSU) 4.46 4.64 VIT Undervoltage input threshold at VSU TL7770-12 (12-V sense, 1VSU) TA = MIN to MAX 10.68 11.12 V VIT– (negative-going) TL7770-5, TL7770-12 (programmable sense, 2VSU) TA = MIN to MAX 1.47 1.53 V TL7770-5 (5-V sense, 1VSU) 15 Vhys Hysteresis at VSU TL7770-12 (12-V sense, 1VSU) TA = MIN to MAX 36 mV Vhys (VIT+ – VIT–) TL7770-5, TL7770-12 (programmable sense, 2VSU) TA = MIN to MAX 5 mV VT Overvoltage threshold at VSO TL7770-5, TL7770-12 (VSO) TA = MIN to MAX 2.48 2.68 V II Input current VSO VI = 2.4 V 0.5 µA † Typical values are at VCC = 5 V, TA = 25°C. total device PARAMETER TEST CONDITIONS TL7770-5Y TL7770-12Y UNIT MIN TYP† MAX Vres‡ Power-up reset voltage VCC = VSU, VOL = 0.4 V, IOL = 1 mA 0.8 V ICC Supply current 1VSU = 18 V, 2VSU = 2 V, 1RESIN and 2RESIN at VCC, 1VSO and 2VSO at 0 V TA = 25°C 5 mA † Typical values are at VCC = 5 V, TA = 25°C. ‡ This is the lowest voltage at which RESET becomes active. switching characteristics, VCC = 5 V, CT open, TA = 25°C PARAMETER FROM (INPUT) TO (OUTPUT) TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low-to-high-level output RESIN RESET 270 500 ns tPHL Propagation delay time, high-to-low-level output RESIN RESET 270 500 ns tr Rise time RESET See Figures 1 75 ns tf Fall time RESET g and 3 150 ns tr Rise time RESET 75 ns tf Fall time RESET 50 ns tw(min) Minimum effective pulse duration RESIN See Figure 2a 150 ns tw(min) Minimum effective ulse duration VSU See Figure 2b 100 ns |
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