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TPS56300 데이터시트(PDF) 8 Page - Texas Instruments |
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TPS56300 데이터시트(HTML) 8 Page - Texas Instruments |
8 / 34 page TPS56300 DUAL-OUTPUT LOW-INPUT-VOLTAGE DSP POWER SUPPLY CONTROLLER WITH SEQUENCING SLVS261A – DECEMBER 1999 – JANUARY 2000 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics TJ = 0° to 125°C, VCC = 2.8 V to 5.5 V (unless otherwise noted) overvoltage protection PARAMETER CONDITIONS MIN TYP MAX UNITS OVP ripple regulator trip point (RR) Upper threshold 112 115 120 %VREF Hysteresis (RR) Upper threshold – lower threshold, See Note 2 10 mV Comparator propagation delay time (RR) Voverdrive = 30mV, See Note 2 1 µs Deglitch time (includes comparator propagation delay time) (RR) Voverdrive = 30mV, See Note 2 2.25 11 µs OVP LDO trip point (LDO) Upper threshold 112 115 120 %VREF Hysteresis (LDO) Upper threshold – lower threshold, See Note 2 10 mV Comparator propagation delay time (LDO) Voverdrive = 50mV, See Note 2 1 µs Deglitch time (includes comparator propagation delay time) (LDO) Voverdrive = 50mV, See Note 2 2.25 11 µs NOTE 2. Ensured by design, not production tested. undervoltage protection PARAMETER CONDITIONS MIN TYP MAX UNITS UVP ripple regulator trip point (RR) Lower threshold 70 75 80 %VREF Hysteresis (RR) Upper threshold – lower threshold, See Note 2 10 mV Comparator propagation delay time (RR) Voverdrive = 50mV, See Note 2 1 µs Deglitch time (includes comparator propagation delay time) (RR) Voverdrive = 50mV, See Note 2 0.1 1 ms UVP LDO trip point (LDO) Lower threshold 70 75 80 %VREF Hysteresis (LDO) Upper threshold – lower threshold, See Note 2 10 mV Comparator propagation delay time (LDO) Voverdrive = 50mV, See Note 2 1 µs Deglitch time (includes comparator propagation delay time) (LDO) Voverdrive = 50mV, See Note 2 0.1 1 ms NOTE 2. Ensured by design, not production tested. inhibit comparator PARAMETER CONDITIONS MIN TYP MAX UNITS Start threshold 2.1 2.35 V Start threshold TJ = –40°C, See Note 2 2.1 V Stop threshold 1.79 V NOTE 2. Ensured by design, not production tested. VDRV UVLO PARAMETER CONDITIONS MIN TYP MAX UNITS Start threshold See Note 2 4.9 V Hysteresis See Note 2 0.3 0.35 V Stop threshold See Note 2 4.4 V NOTE 2. Ensured by design, not production tested. |
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