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TPS61054 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS61054 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 30 page  TPS61054, TPS61055 SLUS760B – SEPTEMBER 2007 – REVISED SEPTEMBER 2015 www.ti.com 7.5 Electrical Characteristics Unless otherwise noted the specification applies for VIN = 3.6 V over an operating junction temperature of –40°C ≤ TJ ≤ 125°C. Typical values are for TA = 25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT Input voltage range 2.5 6 V VIN Minimum input voltage for start-up MODE0 = 1, MODE1 = 1, RL = 10 Ω 2.5 V IQ Operating quiescent current into AVIN MODE0 = 1, MODE1 = 1 8.5 mA ISD Shutdown current into AVIN MODE0 = 0, MODE1 = 0, –40°C ≤ TJ ≤ 85°C 0.3 3 μA VUVLO Undervoltage lockout threshold VIN falling 2.3 2.4 V OUTPUT Current regulator mode VIN 5.5 VOUT Output voltage range V Voltage regulator mode 5 OVP Output overvoltage protection VOUT rising 5.7 6 6.25 V OVP Output overvoltage protection hysterisis 0.15 V D Minimum duty cycle 7.5% 0.25 V ≤ VLED ≤ 2.0 V, ILED = ITORCH, TJ = 50°C –15% 15% LED current accuracy(1) 0.25 V ≤ VLED ≤ 2.0 V, ILED = IFLASH, TJ = 50°C –12% 12% LED current temperature coefficient 0.08 %/°C DC output voltage accuracy 2.5 V ≤ VIN ≤ 0.9 VOUT, PWM operation –3% 3% VLED LED sense voltage Boost Mode 250 mV LED input leakage current VLED = VOUT = 5 V, –40°C ≤ TJ ≤ 85°C 0.1 1 μA POWER SWITCH Switch MOSFET on-resistance 80 rDS(on) VOUT = VGS = 3.6 V m Ω Rectifier MOSFET on-resistance 80 Switch MOSFET leakage 0.1 1 Ilkg(SW) VDS = 6.0 V, –40°C ≤ TJ ≤ 85°C μA Rectifier MOSFET leakage 0.1 1 2.5 V ≤ VIN ≤ 6.0 V, ILIM = 00 850 1000 1150 Ilim Switch current limit mA 1275 1500 1725 2.5 V ≤ VIN ≤ 6.0 V, ILIM = 01 (1) Thermal shutdown(1) 140 160 °C Thermal shutdown hysteresis(1) 20 °C OSCILLATOR fSW Oscillator frequency 1.8 2.0 2.2 MHz MODE0, MODE1, Tx-TOFF, FLASH_SYNC V(IH) High-level input voltage 1.2 V V(IL) Low-level input voltage 0.4 V I(LKG) Logic input leakage current Input connected to VIN or GND, –40°C ≤ TJ ≤ 85°C 0.01 0.1 μA Tx-TOFF pulldown resistance Tx-TOFF ≤ 0.4 V 400 k Ω FLASH_SYNC pulldown resistance FLASH_SYNC ≤ 0.4 V 400 k Ω TIMING From shutdown into flash mode ILED = 700 mA 1.2 ms Start-up time From shutdown into voltage mode 650 μs MODE0 = 1, MODE1 = 1, IOUT = 0 mA LED current settling time(2) triggered by MODE0 = 0, MODE1 = 1, 160 μs rising edge on FLASH_SYNC ILED = from 75mA to 700 mA LED current settling time(2) triggered by MODE0 = 0, MODE1 = 1, 20 μs rising edge on Tx-TOFF ILED = 700 mA to 75 mA (1) Assured by design. Not tested in production. (2) Settling time to ±15% of the target value 6 Submit Documentation Feedback Copyright © 2007–2015, Texas Instruments Incorporated Product Folder Links: TPS61054 TPS61055 |
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