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TPS546C23RVFT Datasheet(PDF) 7 Page - Texas Instruments |
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TPS546C23RVFT Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 97 page  7 TPS546C23 www.ti.com SLUSCC7A – JULY 2016 – REVISED AUGUST 2016 Product Folder Links: TPS546C23 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Electrical Characteristics (continued) TJ = –40°C to 125°C, VPVIN = VAVIN= 12 V, RRT = 40.2 kΩ; zero power dissipation (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT (3) The setting of TON_RISE of 0 ms means the unit to bring its output voltage to the programmed regulation value as quickly as possible, which results in an effective TON_RISE time of 1 ms (fastest time supported). (4) The setting of TON_MAX_FAULT_LIMIT of 0 means disabling TON_MAX_FAULT response and reporting completely. (5) The setting of TOFF_FALL of 0 ms means the unit to bring its output voltage down to 0 as quickly as possible, which results in an effective TOFF_FALL time of 1 ms (fastest time supported). TMdelay(sync) Delay from the rising edge of SYNC input to the SW rising edge of the loop master device 515 ns TS delay(sync) Delay from the falling edge of SYNC input to the SW rising edge of the loop slave device 515 ns fSYNC Synchronization frequency 160 1200 kHz ΔfSYNC SYNC pin frequency range from free running frequency(1) –20% 20% RESET VIH(reset) High-level input voltage(1) 1.35 V VIL(reset) Low-level input voltage 0.8 Tpw(reset) Minimum RESET_B pulse width 200 ns BP6 REGULATOR VBP6 Regulator output voltage IBP6 = 10 mA 5.85 6.4 6.95 V VBP6(do) Regulator dropout voltage VAVIN – VBP6, VAVIN = 4.5 V, IBP6 = 25 mA 100 200 400 mV IBP6SC Regulator short-circuit current(1) VAVIN = 12 V 150 mA VBP6UV Regulator UVLO voltage(1) 3.73 V VBP6UV(hyst) Regulator UVLO voltage hysteresis(1) 270 mV BOOTSTRAP VBOOT(drop) Bootstrap voltage drop IBOOT = 5 mA 150 mV BP3 REGULATOR VBP3 3-V regulator output voltage VAVIN ≥ 4.5 V, IBP3 = 5 mA 3 3.2 3.4 V IBP3SC 3-V regulator short-circuit current(1) 18 35 mA PWM TON(min) Minimum controllable pulse width(1) 100 ns TOFF(min) Minimum off-time(1) 515 550 ns SOFT START TON_RISE Soft-start time Factory default setting 3 ms Programmable range, 16 discrete settings(1) (3) 0 100 Accuracy, TON_RISE = 3 ms, VOUT_COMMAND = 0.95 V –10% 10% TON_MAX_FAU LT_LIMIT Upper limit on the time to power up the output Factory default setting(4) 0 ms Programmable range, 16 discrete settings(1) (4) 0 100 Accuracy(1) –10% 10% TON_DELAY Turn-on delay Factory default setting 0 ms Programmable range, 16 discrete settings(1) 0 100 Accuracy(1) –10% 10% SOFT STOP TOFF_FALL Soft-stop time Factory default setting(5) 0 ms Programmable range, 16 discrete settings(1) (5) 0 100 Accuracy, TOFF_FALL = 1 ms, VOUT_COMMAND = 0.95V –10% 10% TOFF_DELAY Turn-off delay Factory default setting 0 ms Programmable range, 16 discrete settings(1) 0 100 Accuracy(1) –10% 10% REMOTE SENSE AMPLIFIER |
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