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TPS92510 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS92510 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 25 page  TPS92510 SLUSAE4A – JANUARY 2012 – REVISED JUNE 2012 www.ti.com ELECTRICAL CHARACTERISTICS –40°C ≤ TJ ≤ 125°C, VVIN = 12 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE (VIN PIN) VVIN Input voltage 3.5 60 V VUVLO Internal undervoltage lockout threshold No voltage hysteresis, rising and falling 2.5 V IVINSD Shutdown supply current VEN = 0 V, TA=25°C, 3.5 V ≤ VVIN ≤ 60 V 1.3 4 μA IVIN Non-switching supply current VVSENSE = 210 mV, TA=25°C 305 400 ENABLE AND UVLO (EN PIN) VEN Enable threshold voltage No voltage hysteresis, rising and falling, 25°C 1.135 1.250 1.345 V VREF threshold +50 mV –3.8 Input current μA VREF threshold –50 mV –0.9 Hysteresis current –2.9 μA VOLTAGE REFERENCE 3.5 ≤ VVIN ≤ 60 V, TJ = 25°C 194 200 206 VREF Voltage reference mV 3.5 ≤ VVIN ≤ 60 V, -40°C ≤ TJ ≤ 125°C 190 210 HIGH-SIDE MOSFET VVIN = 3.5 V, (VBOOT– VPH) = 3 V 300 RDS(on) On-resistance m Ω VVIN = 12 V, (VBOOT– VPH) = 6 V 200 410 ERROR AMPLIFIER Input current 50 nA gM(ea) Error amplifier transconductance gain –2 μA < ICOMP < 2 μA, VCOMP = 1 V 310 μA/V Error amplifier dc gain VVSENSE = 0.2 V 10 kV/V Error amplifier bandwidth 2.7 MHz Error amplifier source/sink VCOMP = 1 V, 100 mV overdrive ±27 μA COMP to switch current transconductance 10.5 A/V CURRENT LIMIT Current limit threshold TJ = 25°C 2.5 4.0 A THERMAL SHUTDOWN TSD Thermal shutdown 150 °C Thermal shutdown hysteresis 20 °C TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN) fSW Switching frequency range using RT mode 100 2500 kHz fSW Switching frequency RRT = 200 kΩ 450 581 720 kHz Switching frequency range using CLK mode 300 2200 kHz Minimum CLK input pulse width 40 ns RT/CLK high threshold 1.9 2.2 V RT/CLK low threshold 0.5 0.7 V RT/CLK falling edge to PH rising edge delay Measured at 500 kHz with RT resistor in series 60 ns Phase loop (PLL) lock-in time fSW = 500 kHz 100 μs PWM DIMMING (PDIM) VIH High-level input voltage 1.35 1.55 V VIL Low-level input voltage 0.75 0.90 V THERMAL FOLDBACK PROTECTION (TSENSE) PWM ramp valley voltage 0 100 250 mV PWM ramp peak voltage 1.75 1.95 2.15 V PWM frequency 3.5 6.0 8.5 kHz Current source 70 95 125 μA 4 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Link(s): TPS92510 |
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