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TPS40055PWP Datasheet(PDF) 6 Page - Texas Instruments |
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TPS40055PWP Datasheet(HTML) 6 Page - Texas Instruments |
6 / 39 page TPS40054, TPS40055, TPS40057 SLUS593I – DECEMBER 2003 – REVISED DECEMBER 2014 www.ti.com Electrical Characteristics (continued) TA = –40°C to 85°C, VIN = 24 Vdc, RT = 90.9 kΩ, IKFF = 150 µA, fSW = 500 kHz, all parameters at zero power dissipation (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CURRENT LIMIT ISINK Current limit sink current 8.5 10 11.5 µA VILIM = 23.7 V, VSW = (VILIM – 0.5 V) 300 Propagation delay to output VILIM = 23.7 V, VSW = (VILIM – 2 V) 200 ns tON Switch leading-edge blanking pulse time(1) 100 tOFF Off time during a fault (soft-start cycle time) 7 cycles TA = 25°C –90 –70 –50 VOS Offset voltage SW vs. ILIM VILIM = 23.6 V, 0°C ≤ TA ≤ 85°C –120 –38 mV VILIM = 23.6 V, -40°C ≤ TA ≤ 85°C –120 –20 OUTPUT DRIVER tLRISE Low-side driver rise time 48 96 CLOAD = 2200 pF tLFALL Low-side driver fall time 24 48 ns tHRISE High-side driver rise time 48 96 CLOAD = 2200 pF (HDRV – SW) tHFALL High-side driver fall time 36 72 VBOOST VBOOST VOH High-level ouput voltage, HDRV IHDRV = –0.1 A (HDRV – SW) –1.5 V –1 V VOL Low-level ouput voltage, HDRV IHDRV = 0.1 A (HDRV – SW) 0.75 V VBP10 VBP10 VOH High-level ouput voltage, LDRV ILDRV = –0.1 A –1.4 V – 1 V VOL Low-level ouput voltage, LDRV ILDRV = 0.1 A 0.5 Minimum controllable pulse width 100 150 ns SS/SD SHUTDOWN VSD Shutdown threshold voltage Outputs off 90 125 160 mV VEN Device active threshold voltage 190 210 245 BOOST REGULATOR VBOOST Output voltage VIN= 24.0 V 31.2 32.2 33.5 V RECTIFIER ZERO CURRENT COMPARATOR (TPS40054 ONLY) VSW Switch voltage LDRV output OFF –10 –5 0 mV SW NODE ILEAK Leakage current(1) (out of pin) 25 µA THERMAL SHUTDOWN Shutdown temperature(1) 165 TSD °C Hysteresis(1) 20 UVLO VUVLO KFF programmable threshold voltage RKFF = 28.7 kΩ 6.95 7.5 7.95 VDD UVLO, fixed 7.2 7.5 7.9 V VDD UVLO, hysteresis 0.46 6 Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS40054 TPS40055 TPS40057 TPS40054: Not Recommended For New Designs |
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