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TPS40180 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS40180 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 52 page  www.ti.com ELECTRICAL CHARACTERISTICS TPS40180 SLVS753B – FEBRUARY 2007 – REVISED NOVEMBER 2007 VVDD = 12V, VBP5 = 5V, VPVCC = 5V, –40°C < TJ < 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDD INPUT SUPPLY VVDD Operating voltage range 4.5 12 15 V IVDDSD Shutdown current VUVLO < 0.5 V 50 µA BP5 INPUT SUPPLY VBP5 Operating voltage range 4.3 5.0 5.5 V IBP5 Operating current 2 3 5 mA VBP5UV Rising undervoltage turn on threshold 4.0 4.25 4.5 V VBP5UVH BP5 UVLO hysteresis 225 mV PVCC REGULATOR VPVCC Output voltage 4.5 V < VVDD < 15 V 4.3 5.0 5.5 V IPVCC Output current 0 50 mA OSCILLATOR FOSC Oscillator frequency RRT= 64.9 kΩ 360 415 454 kHz Oscillator frequency range 150 1000 VRMP Ramp voltage(1) 420 500 525 mV VRTCKLSLV RT pin clock slave voltage threshold 2 V DIGITAL CLOCK SIGNAL (CLKIO) RCLKH Pull Up Resistance(1) 27 Ω RCLKL Pull Down Resistance(1) 27 ICLKIOLK Leakage current in high impedance VRT < 2 V, VPSEL = 5 V 1 µA state(1) UVLO PIN PVCC regulator enabled 0.8 0.9 1.5 VUVLO(on) V PWM switching enabled 1.9 2.0 2.1 IUVLO Hysteresis bias current 9 12 15 µA PULSE WIDTH MODULATOR DMAX 8 phase CLK scheme 87.5% Maximum duty cycle 6 phase CLK scheme 83% tON(min) Minimum pulse width(1) 75 ns VSHARE VVSH Current share reference; Ramp valley RLOAD = 20 kΩ 1.7 1.8 1.9 V voltage ERROR AMPLIFIER IIB Input bias current at FB pin VFB = 0.7 V –200 0 200 nA VREF Trimmed FB control voltage (includes 695 700 705 mV differential sense amp offset IOH COMP source current VCOMP = 1.1V, VFB = 0.6 V 1 2 mA IOL COMP sink current VCOMP = 1.1V, VFB = 0.8 V 1 2 EAGBWP Gain bandwidth product (1) 8 12 MHz AOL Open loop gain (1) 60 90 dB SOFTSTART Charging Current: device Enabled, ISS1 Before First PWM Pulse and During 6.5 7.5 8.2 Hiccup Fault Recovery µA Charging Current After First PWM ISS2 12 15 17 Pulse VSS_FE Fault Enable Threshold 0.8 V Voltage loop slave mode threshold VBP5 - VSSSLV VBP5 = 5V voltage 0.75 CURRENT LIMIT IILIM Threshold setting current 21.5 23.5 25.5 µA (1) Specified by design. Not production tested . 4 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TPS40180 |
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