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DLPA2005ERSLR Datasheet(PDF) 8 Page - Texas Instruments |
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DLPA2005ERSLR Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 55 page  DLPA2005 DLPS047B – SEPTEMBER 2014 – REVISED OCTOBER 2015 www.ti.com Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted) (see (1)(2)(3)) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LED CURRENT CONTROL Vƒ LED forward voltage 4.55 V VIN ≥4.50 V, VLED ≤4.8 V; (closed loop operation) Covers USB power and 5 V AC adapter Current at max. code 0x3CBh for 2200 2400 2600 SWx_IDAC[9:0] RLIM =39mΩ, 0.1%, TA ≤45°C (see register settings) LED Currents mA VIN ≥ 2.7 V, VLED ≤4.8 V, (closed loop operation) Covers single cell Li-ion battery with high current loading 1300 ILED Current at max. code 0x20Eh for SWx_IDAC[9:0] RLIM = 39 mΩ, 0.1%, TA=25 C (see register settings) DC current accuracy, SW4, 5, 6 RLIM = 39 mΩ ±100 mA ILIM[3 :0] = 333 0000 Transient LED current limit range at RLIM = 39 m Ω mA ILIM[3 :0] = 3846 1111 ILED from 5% to 95%, ILED = 300 mA, trise Current rise time Transient current limit disabled 50 µs Not tested in production 1.1-V REGULATOR VCORE (BUCK) VIN Input voltage 2.3 6 V Nominal fixed output voltage 1.1 V VOUT 0 mA ≤ IOUT ≤ 600 mA at VIN > 2.5 V DC output voltage accuracy –1.5% 1.5% VOUT = 1.1 V d Maximum duty cycle 100% Low-side MOSFET on-resistance 185 380 m Ω RDS(ON) VIN = 3.6 V, TJ = 27ºC High-side MOSFET on-resistance 240 480 m Ω IOUT Output current VIN > 2.3 V 300 600 mA ILIMIT Switch current limit 1 A Time to ramp from 10% to 90% of VOUT, VIN tSS Soft-start time 250 µs = 3.6 V COUT Output capacitance 10 µF L Nominal Inductance 2.2 µH LOAD SWITCH VIN Input voltage range LS_IN 1.8 3.6 V RDS(ON) P-channel MOSFET on-resistance VIN = 1.8 V, over full temperature range 340 385 m Ω Output capacitor Ceramic 4.7 10 12 µF COUT ESR of output capacitor Ceramic 5 20 500 m Ω MEASUREMENT SYSTEM (AFE) AFE_GAIN[1:0] = 01 1.0 G Amplifier gain (PGA) AFE_GAIN[1:0] = 10 9.5 V/V AFE_GAIN[1:0] = 11 18 8 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLPA2005 |
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