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TPS22981 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS22981 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 19 page  TPS22981 SLVSBM6 – DECEMBER 2012 www.ti.com ELECTRICAL CHARACTERISTICS Unless otherwise noted the specification applies over the VDD range and operating junction temp –40°C ≤ TJ ≤ 85°C. Typical values are for V3P3 = 3.3V, VHV = 15V, and TJ = 25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER SUPPLIES AND CURRENTS V3P3 V3P3 Input voltage range 3 3.3 3.6 V VHV VHV Input voltage range 4.5 19.8 V IVHVACT Active quiescent current from VHV HV_EN = 1, EN = 1 150 µA IVHVSD Shutdown leakage current from VHV HV_EN = 0, EN = 0 or 1 60 µA IDDACT EN = 1, HV_EN = 0 500 µA Active quiescent current from V3P3 IDDACTHV EN = 1, HV_EN = 1 500 µA IDDSD Shutdown quiescent current from V3P3 EN = 0, OUT = 0 V 30 µA IDIS OUT Discharge current EN = 1, VHV = 5V, HV_EN = 1→0 5 10 mA V = 0 V 1 IIN HV_EN, EN, ENHVU, S0, S3 Input pin leakage µA V = V3P3 1 SWITCH AND RESISTANCE CHARACTERISTICS RSHV VHV Switch resistance VHV = 5V to 18V, IVHV = 0.9A 250 m Ω RS3P3 V3P3 Switch resistance V3P3 = 3.3 V, IV3P3 = 0.9 A 125 m Ω RS3P3BYP V3P3 Bypass switch resistance V3P3 = 3.3 V, IV3P3 = 500 mA 500 m Ω VOLFAULTZ FAULTZ VOL IFAULTZ = 250 µA 0.6 V VOLTAGE THRESHOLDS VHV Input falling 3.6 4 VHVUVLO VHV Under voltage lockout V VHV Input rising 4 4.3 V3P3 Input falling 1.8 2.25 V3P3UVLO V3P3 Under voltage lockout V V3P3 Input rising 2.25 2.5 VFAULTZVAL V3P3 Voltage for valid FAULTZ EN = 1 1.8 V THERMAL SHUTDOWN TSD Shutdown temperature 110 120 130 °C TSDHYST Shutdown hysteresis 10 °C CURRENT LIMIT RSET_S0,3 = 402 kΩ (1) 80 100 120 ILIMHV VHV Switch current limit state S0 or S3 RSET_S0,3 = 80.6 kΩ (1) 446 496 546 mA RSET_S0,3 = 26.7 kΩ (1) 1423 1498 1573 ILIMVHVMAX Maximum VHV switch current limit RSET_S0,3 = 0 Ω 1.8 2.4 3.1 A RSET_V3P3 = 402 kΩ (1) 80 100 120 ILIM3P3 V3P3 Switch current limit RSET_V3P3 = 80.6 kΩ (1) 446 496 546 mA RSET_V3P3 = 26.7 kΩ (1) 1423 1498 1573 ILIM3P3MAX Maximum V3P3 switch current limit RSET_V3P3 = 0Ω 1.8 2.4 3.1 A IREV3P3 V3P3 Switch reverse current limit 10 40 85 mA TV3P3RC V3P3 Switch reverse current response time VOUT = V3P3→V3P3 + 20 mV 100 µs TVHVSC VHV Switch short circuit response time COUT ≤ 20 pF 8 µs TV3P3SC V3P3 Switch short circuit response time COUT ≤ 20 pF 8 µs TRANSITION DELAYS T3P3OFF VHV to V3P3 Off time COUT = 1.1 µF, EN = 1, HV_EN = 1→0 6 ms T0-3.3V 0V to 3.3V Ramp time COUT ≤ 20 pF 6 ms T3.3V-VHV 3.3V to VHV Ramp time COUT ≤ 20 pF 6 ms TVHV-3.3V VHV to 3.3V Ramp time COUT ≤ 20 pF 23 ms TLIM Overcurrent response time COUT ≤ 20 pF, IOUT = 6 A 0.5 ms (1) Equation 1 is used to calculate the required resistance for a given minimum ILIM. The nearest 1% resistance is chosen and the corresponding ILIM variance is shown. 4 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Links: TPS22981 |
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