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TPS43337-Q1 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS43337-Q1 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 38 page TPS43337-Q1 SLVSBC2A – AUGUST 2013 – REVISED SEPTEMBER 2013 www.ti.com DC ELECTRICAL CHARACTERISTICS VIN = 8 to 18 V, TJ = –40°C to +150°C (unless otherwise noted) NO. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 1.0 Input Supply Boost controller enabled, after initial start-up 1.1 VBAT Supply voltage 2 40 V condition is satisfied Input voltage required for device 6.5 40 on initial start-up 1.2 VIN V Buck regulator operating range 4 40 after initial start-up VIN falling. After a reset, initial start-up conditions 3.5 3.6 3.8 V may apply.(1) 1.3 VIN UV Buck undervoltage lockout VIN rising. After a reset, initial start-up conditions 3.8 4 V may apply.(1) 1.4 VBOOST_UNLOCK Boost unlock threshold VBAT rising 8.2 8.5 8.8 V VIN = 13 V, BuckA: LPM, BuckB: off, TA = 25°C 34 46 µA LPM quiescent current: 1.5 IQ_LPM VIN = 13 V, BuckB: LPM, BuckA: off, TA = 25°C (2) VIN = 13 V, BuckA, B: LPM, TA = 25°C 43 57 µA VIN = 13 V, BuckA: LPM, BuckB: off, TA = 125°C 44 56 µA LPM quiescent current: 1.6 IQ_LPM VIN = 13 V, BuckB: LPM, BuckA: off, TA = 125°C (2) VIN = 13 V, BuckA and BuckB: LPM, TA = 125°C 53 67 µA SYNC = 5 V, TA = 25°C VIN = 13 V, BuckA: CCM, BuckB: off, TA = 25°C 4.85 5.3 Quiescent current: 1.7 IQ_NRM mA normal (PWM) mode(2) VIN = 13 V, BuckB: CCM, BuckA: off, TA = 25°C VIN = 13 V, BuckA and BuckB: CCM, TA = 25°C 7 7.6 SYNC = 5 V, TA = 125°C VIN = 13 V, BuckA: CCM, BuckB: off, TA = 125°C 5 5.5 Quiescent current: 1.8 IQ_NRM mA normal (PWM) mode(2) VIN = 13 V, BuckB: CCM, BuckA: off, TA = 125°C VIN = 13 V, BuckA, B: CCM, TA = 125°C 7.5 8 1.9 Ibat_sh Shutdown current BuckA and BuckB: off, VBat = 13 V , TA = 25°C 2.5 4 µA 1.10 Ibat_sh Shutdown current BuckA and BuckB: off, VBat = 13 V, TA = 125°C 3 5 µA 1.11 VINLPMexit VIN level to exit LPM VIN falling 7.7 8 8.3 V 1.12 VINLPMentry VIN level to enable entering LPM VIN rising 8.2 8.5 8.8 V 1.13 VINLPMhys Hysteresis VIN rising or falling 0.4 0.5 0.6 V 2.0 Input Voltage VBAT - Undervoltage Lockout VBAT falling. After a reset, initial start-up conditions 1.8 1.9 2 V may apply.(1) 2.1 VBATUV Boost-input undervoltage VBAT rising. After a reset, initial start-up conditions 2.4 2.5 2.6 V may apply.(1) 2.2 UVLOHys Hysteresis 500 600 700 mV 2.3 UVLOfilter Filter time 5 µs 3.0 Input Voltage VIN - Overvoltage Lockout VIN rising 45 46 47 3.1 VOVLO Overvoltage shutdown V VIN falling 43 44 45 3.2 OVLOHys Hysteresis 1 2 3 V 3.3 OVLOfilter Filter time 5 µs (1) If VBAT and VREG remain adequate, the buck can continue to operate if VIN is > 3.8 V. (2) Quiescent current specification includes the current in the internal-feedback resistor divider. 4 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: TPS43337-Q1 |
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