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LM25066A Arkusz danych(PDF) 5 Page - Texas Instruments |
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LM25066A Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 58 page LM25066A www.ti.com SNVS700F – DECEMBER 2010 – REVISED FEBRUARY 2013 Electrical Characteristics (continued) Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C to +85°C unless otherwise stated. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: VIN = 12V. (1)(2) Symbol Parameter Conditions Min Typ Max Unit PGDIOH Off leakage current VPGD = 17V 1 µA PGDDELAY Power Good Delay VFB to VPG 115 ns FB Pin FBTH FB Threshold VFB rising 1.141 1.167 1.19 V FBHYS FB Hysteresis Current -31 -24 -18 µA FBLEAK Off Leakage Current VFB = 1V 1 µA Power Limit (PWR Pin) PWRLIM Power limit sense voltage (VIN-SENSE) SENSE-OUT = 12V, RPWR = 25 kΩ 9 12.5 15 mV IPWR PWR pin current VPWR = 2.5V -10 µA RSAT(PWR) PWR pin impedance when disabled UVLO = 0.7V 180 Ω Gate Control (GATE Pin) IGATE Source current Normal operation -28 -22 -16 µA Fault Sink current UVLO = 1V 1.5 2 2.5 mA POR Circuit Breaker sink current VIN - SENSE = 150 mV or VIN < RPOR, 105 190 275 mA VGATE = 5V VGATE Gate output voltage in normal operation GATE voltage with respect to ground 17 18.8 20.3 V OUT Pin IOUT-EN OUT bias current, enabled OUT = VIN, normal operation 16 µA IOUT-DIS OUT bias current, disabled (3) Disabled, OUT = 0V, SENSE = VIN -12 µA Current Limit VCL Threshold voltage CL = GND 22.5 25 27.5 mV CL = GND, TJ = 10°C to 85°C 23 25 27 CL = VDD 41 46 52 tCL Response time VIN-SENSE stepped from 0 mV to 80 mV 1.2 µs ISENSE SENSE input current Enabled, SENSE = OUT 33 µA Disabled, OUT = 0V 46 Enabled, OUT = 0V 45 Circuit Breaker VCB Threshold voltage x 1.8 VIN - SENSE, CL = GND, CB = GND 35 45 55 mV CB:CL Ratio CB = GND 1.6 1.8 2 VCB Threshold voltage x 3.6 VIN - SENSE, CL = GND, CB = VDD 70 90 110 mV CB:CL Ratio CB = VDD 3.1 3.6 4 tCB Response time VIN - SENSE stepped from 0 mV to 150 0.6 1.2 µs mV, time to GATE low, no load Timer (TIMER pin) VTMRH Upper threshold 1.54 1.7 1.85 V VTMRL Lower threshold Restart cycles 0.85 1.0 1.07 V End of eighth cycle 0.3 V Re-enable threshold 0.3 V (3) OUT bias current (disabled) due to leakage current through an internal 0.9 M Ω resistance from SENSE to VOUT. Copyright © 2010–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM25066A |
Podobny numer części - LM25066A_15 |
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Podobny opis - LM25066A_15 |
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