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TL7757CLP Scheda tecnica(PDF) 4 Page - Texas Instruments |
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TL7757CLP Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 11 page TL7757 SUPPLY-VOLTAGE SUPERVISOR AND PRECISION VOLTAGE DETECTOR SLVS041E – SEPTEMBER 1991 – REVISED JULY 1999 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics at specified free-air temperature PARAMETER TEST CONDITIONS TA TL7757I UNIT PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT VIT Negative going input threshold voltage at VCC 25 °C 4.43 4.55 4.67 V VIT – Negative-going input threshold voltage at VCC –40 °C to 85°C 4.4 4.7 V V † Hysteresis at VCC 25 °C 40 50 60 mV Vhys† Hysteresis at VCC –40 °C to 85°C 30 70 mV VOL Low level output voltage IOL =20mA VCC =4 3V 25 °C 0.4 0.8 V VOL Low-level output voltage IOL = 20 mA, VCC = 4.3 V –40 °C to 85°C 0.8 V IOH High level output current VCC = 7 V, VOH = 15 V, 25 °C 1 µA IOH High-level output current CC , See Figure 1 OH , –40 °C to 85°C 1 µA V ‡ Power up reset voltage RL = 2.2 kΩ, 25 °C 0.8 1 V Vres‡ Power-up reset voltage L , VCC slew rate ≤ 5 V/µs –40 °C to 85°C 1.2 V VCC =4 3V 25 °C 1400 2000 ICC Supply current VCC = 4.3 V –40 °C to 85°C 2100 µA VCC = 5.5 V –40 °C to 85°C 40 † This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT–. ‡ This is the lowest voltage at which RESET becomes active. switching characteristics at specified free-air temperature PARAMETER TEST CONDITIONS TA TL7757I UNIT PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT tPLH Propagation delay time low to high level output VCC slew rate ≤ 5 V/µs, 25 °C 3.4 5 µs tPLH Propagation delay time, low-to-high-level output CC µ , See Figures 2 and 3 –40 °C to 85°C 5 µs tPHL Propagation delay time high to low level output See Figures 2 and 3 25 °C 2 5 µs tPHL Propagation delay time, high-to-low-level output See Figures 2 and 3 –40 °C to 85°C 5 µs t Rise time VCC slew rate ≤ 5 V/µs, 25 °C 0.4 1 µs tr Rise time CC µ , See Figures 2 and 3 –40 °C to 85°C 1 µs tf Fall time See Figures 2 and 3 25 °C 0.05 1 µs tf Fall time See Figures 2 and 3 –40 °C to 85°C 1 µs t (i ) Minimum pulse duration at VCC for output 25 °C 5 µs tw(min) CC response –40 °C to 85°C 5 µs |
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