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TPS65632 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS65632 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 28 page  TPS65632 www.ti.com SLVSCY2 – MARCH 2015 7.5 Electrical Characteristics VI = 3.7 V, CTRL = 3.7 V, EN = 3.7 V, VPOS = 4.6 V, VNEG = –4.0 V, AVDD = 7.7 V, TJ = –40°C to 85°C, typical values are at TJ = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT AND THERMAL PROTECTION VI Input voltage range 2.9 3.7 4.5 V Shutdown current CTRL = GND, EN = GND, sum of current flowing into ISD 0.25 5 µA AVIN and PVIN VI falling 1.8 2.1 V VUVLO Under-voltage lockout threshold VI rising 2.1 2.5 V BOOST CONVERTER 1 (VPOS) Positive output 1 voltage 4.6 V VPOS 25°C ≤ TA ≤ 85°C, No load –0.5% 0.5% Positive output 1 voltage variation –30°C ≤ TA ≤ 85°C, No load –0.8% 0.8% rDS(on)1A Switch on-resistance 200 m Ω I(SWP1) = 200 mA rDS(on)1B Rectifier on-resistance 350 m Ω fSW1 Switching frequency IPOS = 200mA 1.7 MHz ISW1 Switch current limit Inductor valley current 0.8 1 1.4 A VSCP1 Short-circuit threshold in VPOS falling 3.95 4.10 4.28 V operation tSCP1 Short-circuit detection time in 3 ms operation V(OUTP1) – V(FBS) increasing 200 300 550 mV VT Output voltage sense threshold V(OUTP1) – V(FBS) decreasing 100 200 450 mV R(FBS) FBS pin pull-down resistance 2 4 6 M Ω RDCHG1 Discharge resistance CTRL = GND, I(SWP1) = 1mA 10 30 70 Ω Line regulation IPOS = 200mA 0.01 %/V Load regulation 1 mA ≤ IPOS ≤ 300 mA 0.007 %/A INVERTING BUCK-BOOST CONVERTER (VNEG) Output voltage default –4.0 V Output voltage range –1.4 –5.4 VNEG 25°C ≤ TA ≤ 85°C, no load –50 50 Output voltage accuracy mV –30°C ≤ TA ≤ 85°C, no load –60 60 rDS(on)2A SWN MOSFET on-resistance 200 m Ω I(SWN) = 200 mA SWN MOSFET rectifier on- rDS(on)2B 300 m Ω resistance fSW2 SWN Switching frequency INEG = 10 mA 1.7 MHz ISW2 SWN switch current limit VI = 2.9 V 1.5 2.2 3 A Short circuit threshold in Voltage increase from nominal VNEG 300 500 700 mV operation VSCP2 Short circuit threshold in start up 180 200 230 mV Short circuit detection time in 10 ms start up tSCP2 Short circuit detection time in 3 ms operation RDCHG2 Discharge resistance CTRL = GND, I(SWN) = 1 mA 130 150 170 Ω Line regulation INEG = 200 mA 0.004 %/V Load regulation 0.1 %/A BOOST CONVERTER 2 (AVDD) Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 5 |
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