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TL7759CPSRE4 데이터시트(PDF) 3 Page - Texas Instruments |
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TL7759CPSRE4 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 12 page TL7759 SUPPLY-VOLTAGE SUPERVISORS SLVS042D – JANUARY 1991 – REVISED JULY 1999 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS TL7759Y UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOL Low-level output voltage RESET VCC = 4.3 V, IOL = 24 mA 0.4 V VIT– Input threshold voltage (negative-going VCC) 4.55 V Vres† Power-up reset voltage RL = 2.2 kΩ 0.8 V Vhys‡ Hysteresis at VCC input 50 mV ICC Supply current VCC = 4.3 V, No load 1400 µA † This is the lowest voltage at which RESET becomes active, VCC slew rate ≤ 5 V/µs. ‡ This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT–. timing diagram VIT – 0 RESET 0 Vres VCC VIT+ Output Undefined for VCC Less Than 1 V Output Undefined VIT+ VIT– Vres switching characteristics at TA = 25°C (unless otherwise noted) PARAMETER FROM TO TEST CONDITIONS TL7759C UNIT PARAMETER (INPUT) (OUTPUT) TEST CONDITIONS MIN MAX UNIT tPLH Propagation delay time, low-to high-level output VCC RESET See Figures 2 and 3§ 5 µs tPHL Propagation delay time, high-to low-level output VCC RESET See Figures 2 and 4 5 µs tr Rise time RESET See Figures 2 and 4§ 1 µs tf Fall time RESET See Figures 2 and 4 1 µs tw(min) Minimum pulse duration VCC RESET See Figures 2 and 4 5 µs § VCC slew rate ≤ 5 V/µs |
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