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TPS40090RHDTG4 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS40090RHDTG4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 31 page TPS40090 TPS40091 SLUS578B – OCTOBER 2003 – REVISED MAY 2006 www.ti.com ELECTRICAL CHARACTERISTICS TA = -40°C to 85°C, VIN = 12 V, R(RT) = 64.9 kΩ, TJ = TA (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY VIN Operating voltage range, VIN 4.5 15 VIN UVLO Rising VIN 4.25 4.45 V VIN UVLO(1) Falling VIN 4.1 4.35 IIN Shutdown current, VIN 2 10 μA IIN Quiescent current switching Four channels, 400 kHz each, no load 4 6 mA OSCILLATOR/SYNCHRONIZATION Phase frequency accuracy Four channels, RRT = 64.9 kΩ 370 415 455 Phase frequency set range(1) Four channels 100 1200 kHz Synchronization frequency range(1) Four channels 800 9600 Synchronization input threshold(1) Four channels VBP5/2 V PWM 4-phase operation 87.5% Maximum duty cycle per channel 2- and 3-phase operation 83.3% Minimum duty cycle per channel(1) 0 Minimum controllable on-time(1) 50 100 ns ERROR AMPLIFIER Feedback input voltage 0.693 0.700 0.707 V Feedback input bias current VFB = 0.7 V 25 150 nA VOH High-level output voltage ICOMP = -1 mA 2.5 2.9 V VOL low-level output voltage ICOMP = 1 mA 0.5 0.8 GBW Gain bandwidth(1) 5 MHz AVOL Open loop gain(1) 90 dB SOFT START ISS Soft-start source current 3.5 5 6 μA VSS Soft-start clamp voltage 0.95 1.00 1.05 V ENABLE Enable threshold voltage 0.8 2 2.5 V Enable voltage capability(1) VIN(max) PWM OUTPUT PWM pull-up resistance IOH = 5 mA 27 45 Ω PWM pull-down resistance IOL = 10 mA 27 45 Ilkg PWM output leakage(1) (2) 3-State 1 μA 5V REGULATOR VOUT Output voltage External ILOAD = 2 mA on BP5 4.8 5 5.2 V Pass device voltage drop VIN = 4.5 V, No external load on BP5 200 mV Short circuit current 10 30 mA (1) Specified by design. Not production tested. (2) TPS40091 only. 4 Submit Documentation Feedback Copyright © 2003–2006, Texas Instruments Incorporated Product Folder Link(s): TPS40090 TPS40091 |
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