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TPS40400RHLT Datasheet(PDF) 3 Page - Texas Instruments |
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TPS40400RHLT Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 72 page  TPS40400 www.ti.com SLUS930B – APRIL 2011 – REVISED OCTOBER 2011 ELECTROSTATIC DISCHARGE PROTECTION MIN TYP MAX UNIT Human Body Model (HBM) 2500 V Charged Device Model (CDM) 1500 V ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for –40°C ≤ TJ ≤ 125°C, VDD= 12 Vdc, FREQUENCY_SWITCH = 600 kHz PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY VVDD Input voltage range 3 20 V IVDD Input operating current Switching, no driver load 6 15 mA VOLTAGE REFERENCE VFB Feedback pin voltage default settings -40 ºC ≤ TJ ≤ 125ºC 594 600 606 mV VFB(max) Feedback pin voltage maximum adjustment 750 mV VFB(min) Feedback pin voltage minimum adjustment 450 mV VFB(inc) Feedback pin voltage adjustment resolution 2.34 mV Maximum nonlinearity error over adjustment VFB(NL) 10 mV range BP6 REGULATOR VBP6 6-V regulator output voltage 6.2 6.5 6.8 V VDO6 Regulator dropout voltage, (VVDD – VBP6) VVDD = 6 V, IBP6 = 50 mA 300 mV IBP6 Regulator current limit 100 mA BP3 REGULATOR VBP3 3.3-V regulator output voltage 3.1 3.3 3.5 V VDO3 Regulator dropout voltage, (VVDD – VBP3) VVDD = 3V, IBP3 = 5 mA 100 200 mV OSCILLATOR fSW Switching frequency Factory default setting 480 600 720 kHz Nominal frequency range 200 2000 Accuracy 3 V ≤ VVDD ≤ 20 V, 200 kHz ≤ fSW ≤ 2 MHz –20% 20% VIH SYNC high-level input voltage 2.0 V VIL SYNC low-level input voltage 0.4 VSYNC = 6 V 100 ISYNC SYNC pin leakage current nA VSYNC = 0 V 100 tSRISE Maximum SYNC rise time(1) 100 ns tSYNC Minimum SYNC pulse width 100 ns FREQUENCY_SWITCH = 200 kHz VVDD/6.6 VVDD/6.5 VVDD/6.3 V VRMP Ramp amplitude(1) FREQUENCY_SWITCH = 600 kHz VVDD/7.0 VVDD/6.8 VVDD/6.6 FREQUENCY_SWITCH = 2000 kHz VVDD/10 VVDD/9.6 VVDD/9.2 VVLY Valley voltage(1) 0.9 fSYNC SYNC range % of nominal oscillator frequency 200 kHz ≤ fSW ≤ 2 MHz 85% 150% PULSE WIDTH MODULATOR (PWM) FREQUENCY_SWITCH = 600 kHz 90% DMAX Maximum duty cycle(1) (2) FREQUENCY_SWITCH = 1.2 MHz 85% FREQUENCY_SWITCH = 2 MHz 75% tOFF(min) Minimum OFF time 170 225 ns tON(min) Minimum controllable pulse(1) TJ = 25°C, fSW = 600 kHz 75 ns (1) Ensured by design. Not production tested. (2) Operation at 3 V reduces maximum duty cycle by approximately 5%. Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s) :TPS40400 |
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