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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TPS43000PWRG4 датащи(PDF) 4 Page - Texas Instruments |
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TPS43000PWRG4 датащи(HTML) 4 Page - Texas Instruments |
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4 / 31 page  TPS43000 SLUS489 − OCTOBER 2001 4 www.ti.com electrical characteristics over recommended operating junction temperature range, TA = −40_C to 85_C for the TPS43000, RT = 75 kΩ (500 kHz), VIN = VP = 3.5 V, VOUT = 3.1 V, COMP/FB pins shorted, BUCK-configured, TA = TJ (unless otherwise noted) soft-start PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RT = 37.5 k Ω (1 MHz) 1.0 3.0 6.0 ms Soft-start time RT = 75 k Ω (500 kHz) 2.0 5.5 12.0 ms Soft-start time RT = 150 k Ω (250 kHz) 4.0 10.5 24.0 oscillator PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RT = 37.5 k Ω (1 MHz), VCOMP = 600 mV 0.90 1.00 1.10 MHz Oscillator frequency RT = 75 k Ω (500 kHz), VCOMP = 600 mV 450 500 550 kHz Oscillator frequency RT = 150 k Ω (250 kHz), VCOMP = 600 mV 225 250 280 kHz SYNC/SD PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Synchronization threshold voltage 0.8 1.25 1.6 V SYNC pulse width SYNC/SD = 2 V, COMP/FB=600 mV 100 50 ns SYNC input current SYNC/SD = 1.6 V 0.5 1 µA SYNC high to shutdown delay time Float COMP, VFB = 0 V 10 22 35 µs Synchronous range Force COMP/FB to 600 mV 1.1 fo 1.5 fo current limit PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Hiccup overcurrent threshold voltage Voltage measured from VIN to SWN 175 250 325 mV Delay to termination of P-channel gate drive time Measured at PDRV 125 300 ns BOOST configured hiccup overcurrent threshold voltage Voltage measured from SWN to GND, BUCK grounded 175 250 325 mV Delay to termination of N-channel gate drive time Measured at NDRV, BUCK grounded 150 300 ns Consecutive overcurrent clock cycles before shutdown 50 63 75 Clock cycles before restart 800 900 1000 CCS threshold voltage Constant current source configured if 0.40 0.70 1.00 V CCS pull-down current Constant current source configured if VCCS > 1 V 0.5 1.0 µA CCS current threshold voltage Measured from VIN to SWN 85 150 225 BOOST-configured CCS current threshold voltage Measured from SWN to GND, BUCK grounded 85 150 225 mV |
Аналогичный номер детали - TPS43000PWRG4 |
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Аналогичное описание - TPS43000PWRG4 |
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