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TPS2492PWR Datasheet(PDF) 4 Page - Texas Instruments |
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TPS2492PWR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 33 page TPS2492 TPS2493 SLUSA65A – JULY 2010 – REVISED AUGUST 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) 9 V ≤ VVCC ≤ 80 V, -40°C ≤ TJ ≤ 125°C, VTIMER = 0 V and all outputs unloaded. Typical specification are at TJ = 25°C, VVCC = 48 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Gate Drive Output (GATE) GATE sourcing current VSENSE = VVCC; V(GATE-OUT) = 7 V; VUVEN = Hi 15 22 35 µA VUVEN = Lo; VGATE = VVCC 1.8 2.4 2.8 IGATE GATE sinking current mA VUVEN = Hi; VGATE = VVCC; VVCC- VSENSE = 75 125 250 200 mV VUVEN = Hi, VCC = SENSE = OUT, measure VGATE GATE output 12 16 V VGATE -VOUT Propagation delay: UVEN going VUVEN = 0 → 2.5 V, 50% of VUVEN to 50% of tD_ON 25 40 high to GATE output high VGATE, VOUT = VVCC, R(GATE-OUT) = 1 MΩ VUVEN = 2.5 V → 0 V, 50% of VUVEN to 50% Propagation delay: UVEN going tD_OFF of VGATE, VOUT = VVCC, R(GATE-OUT) = 1 MΩ, 0.5 1 low to GATE output low µs tFALL < 0.1 µs VTIMER: 0 → 5 V, tRISE < 0.1 µs. 50% of Propagation delay: TIMER expires tD_FAULT VTIMER to 50% of VGATE, VOUT = VCC , 0.8 1 to GATE output low R(GATE-OUT) = 1 MΩ, Power Good Output (PG) IPG = 2 mA 0.1 0.25 Low voltage (sinking) IPG = 4 mA 0.25 0.5 PG threshold voltage; VOUT rising; VSENSE = VVCC; measure V(VCC-OUT) 0.8 1.25 1.7 PG goes low V PG threshold voltage; VOUT VSENSE = VVCC; measure V(VCC-OUT) 2.2 2.7 3.2 falling; PG goes open drain PG threshold hysteresis voltage; VSENSE = VVCC 1.4 V(SENSE-OUT) PG deglitch delay; detection to tDPG VSENSE = VVCC 5 9 15 ms output; rising and falling edges ILEAKAGE Leakage current; PG false open drain 10 µA Overvoltage Input (OV) VOV_H OV rising 1.31 1.35 1.39 V Threshold voltage Hysteresis 70 90 110 mV ILEAKAGE Leakage current (sinking) VOV = 5 V 1 µA tOFF Turn off time VOV = 0 → 2.5 V to VGS < 1 V, CGATE = 2 nF 2 µs Maximum duration of OV strong Gate pull down 40 100 220 pull down Output Voltage Feedback (OUT) VOUT = VVCC, VUVEN = Hi; sinking 8 20 IOUT Bias current µA VOUT = GND; VUVEN = Lo; sourcing 18 40 Load Current Monitor (IMON) Output Maximum output voltage VCC – VSENSE = 200 mV 2.6 2.8 3 V ISOURCE Source current 1.9 mA ISINK Sink current 60 µA Gain (VIMON/V(VCC-SENSE)) 46 48 50 V/V VOFFSET Offset voltage -50 -5 30 mV Error relative to curve fit, 5 mV < (VCC – Linearity(1) 0.3% VSENSE ) Output Ripple(1) 8 mVPP (1) These parameters are provided for reference only, and do not constitute part of TI's published device specifications for purposes of TI's product warranty. 4 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): TPS2492 TPS2493 |
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