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TPS543B20 Fiches technique(PDF) 9 Page - Texas Instruments |
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TPS543B20 Fiches technique(HTML) 9 Page - Texas Instruments |
9 / 33 page 9 TPS543B20 www.ti.com SLUSCR1 – MAY 2017 Product Folder Links: TPS543B20 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CURRENT DETECTION VILIM VTRIP voltage range Rdson sensing 0.1 1.2 V IOCP Low-Side FET Current Protection threshold and tolerance RILIM= 48.7 kΩ 20 A OC tolerance ±15% IOCP_N Negative current limit threshold Valley-point current sense -23 A ICLMP_LO Clamp current at VTRIP clamp at lowest 25°C, VTRIP = 0.1 V 5.5 6.5 7.5 A HIGH-SIDE SHORT CIRCUIT PROTECTION IHSOC High-side short circuit protection fault threshold(1) 45 A OV / UV PROTECTION VOVP OVP threshold voltage OVP detect voltage 113 117 121 %VREF tOVPDLY OVP response time(1) OVP response time with 100 mV overdrive 1 µs VUVP UVP threshold voltage UVP detect voltage 79 83 87 %VREF tUVPDLY UVP delay(1) UVP delay 1.5 µs tHICDLY Hiccup Delay time Regular tSS setting 7 × tSS ms BP LDO REGULATOR BP LDO output voltage VIN = 12 V, ILOAD = 0 to 10 mA 4.5 5 5.5 V VBPUVLO BP UVLO threshold voltage Wakeup 3.32 V Shutdown 3.11 VLDOBP LDO low dropout voltage VIN= 4.5 V, ILOAD= 30 mA, TA = 25°C 365 mV ILDOMAX LDO over-current limit VIN= 12 V, TA = 25°C 100 mA SYNCHRONIZATION VIH(SYNC) High-level input voltage 2.0 V VIL(SYNC) Low-level input voltage 0.8 tPSW(SYNC) Sync input minimum pulse width 100 ns FSYNC Synchronization frequency 300 2000 kHz tSYNC to SW Sync to SW delay tolerance, percentage from phase-to- phase(1) Fsync = 300kHz to 1MHz, 10% tlose_SYNC_delay Delay when lose sync clock(1) FSYNC = 300 kHz 5 µs THERMAL SHUTDOWN TSDN Built-in thermal shutdown threshold(1) Shutsown temperature 155 165 °C Hysteresis 30 |
Numéro de pièce similaire - TPS543B20 |
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Description similaire - TPS543B20 |
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