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TPS40140 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS40140 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 65 page  www.ti.com 2.5 ELECTRICAL CHARACTERISTICS TPS40140 DUAL OR 2-PHASE, STACKABLE CONTROLLER SLUS660A – SEPTEMBER 2005 – REVISED JULY 2006 T J = –40°C to 85°C, (unless otherwise noted), VVDD = 7 V, VBP5 = 5 V, UVLO_CE1, UCLO_CE2: 10 kΩ, Pullup to BP5, f SW = 300 kHz, unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDD INPUT SUPPLY Operating Voltage Range 4.5 12 15 V Shutdown Current UVLO_CE1 = UVLO_CE2 =GND 1 10 µA BP5 INPUT SUPPLY Operating Voltage Range 4.5 5.0 5.5 V BP5 Operating Current 2 3 5 mA Rising BP5 Turn-On 4.0 4.25 4.45 V BP5 Turn-Off Hysteresis 100 220 400 mV Standby Mode Current(1) UVLO_CEx =1.7V 2.8 mA VREG 7 V < VDD <15 V 4.5 5.1 5.5 V Output current 0 100 mA OSCILLATOR, RT Phase Frequency Accuracy RRT= 110 kΩ 300 kHz Phase Frequency Set Range 150 1000 kHz RT(1) 25 k Ω≤ R RT≤ 500 kΩ 0.7 V UNDERVOLTAGE LOCKOUT (UVLO_CE1, UVLO_CE2) Enable threshold, standby mode Internal 5VREG regulator enabled 0.5 1.0 1.5 V UVLO threshold PWM Switching enabled 1.9 2 2.1 V UVLO hysteresis At the UVLO_CEx pin 40 mV UVLO_CE1, UVLO_CE2 bias 1 µA current(1) PWM 2-phase, 4-phase, 8-phase or 16-phase 87.5% Maximum duty cycle per D channel(1) 3-phase, 6-phase, or 12-phase 83.3% VSHARE IVSHR = 0 1.785 1.8 1.815 V (1) -30 µA<i VSHR < 50µA 1.785 1.8 1.815 V ERROR AMPLIFIER CH1, ERROR AMPLIFIER CH2 Input Common Mode Range(1) 0 0.7 2.0 V Input Bias Current(1) VFB = 0.7 V 10 nA FBx Voltage(1) 0.6965 0.700 0.7035 V Output Source Current VCOMP = 1.1 V, VFB = 0.6 V 1 2 mA Output Sink Current VCOMP = 1.1V, VFB = BP5 1 2 mA BW(1) 8 12 MHz Open Loop Gain(1) 60 90 dB VOLTAGE TRACKING (TRK1, TRK2) After EN, before PWM and during hiccup mode 5 6.0 7.3 µA SS source current After first PWM pulse 10 12.5 15 µA Fault Enable Threshold(1) 1.4 V Internal Clamp Voltage(1) 2.4 V SS sink resistance(1) Pull-down resistance 1 k Ω (1) Ensured by design. Not 100% production tested. DEVICE RATINGS 4 Submit Documentation Feedback |
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