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TPS22981RGPR Datasheet(PDF) 5 Page - Texas Instruments |
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TPS22981RGPR Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 27 page  TPS22981 www.ti.com SLVSBM6B – DECEMBER 2012 – REVISED NOVEMBER 2015 6.4 Thermal Information TPS22981 THERMAL METRIC(1) RGP (VQFN) UNIT 20 PINS RθJA Junction-to-ambient thermal resistance 39.3 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 6.5 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 = 3.3 V, VHV = 15 V, 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 ROUTDIS OUT pulldown resistance when disabled EN = 0 1.5 2.5 4 k Ω VOLFAULTZ FAULTZ VOL IFAULTZ = 250 µA 0.6 V VOLTAGE THRESHOLDS VHV Input falling 3.6 4 VHVUVLO VHV undervoltage lockout V VHV Input rising 4 4.3 V3P3 Input falling 1.8 2.25 V3P3UVLO V3P3 undervoltage 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 (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. Copyright © 2012–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TPS22981 |
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