LM3554_14 datasheet(9/43 Pages) TI1

部件名	LM3554

功能描述	Synchronous Boost Converter with 1.2A Dual High Side LED Drivers and I2C Compatible

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制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

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LM3554

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SNVS549A – JUNE 2009 – REVISED APRIL 2011

Typical Performance Characteristics (continued)

VIN = 3.6V, LEDs are Lumiled PWF-4, COUT = 10µF, CIN = 4.7µF, L = FDSE0312-2R2 (2.2µH, RL = 0.15Ω), TA = +25°C unless

otherwise specified.

Torch Current

vs

VIN

(VLED1, VLED2 = 3.2V, TA = +85°C, 75mA setting)

(VLED1, VLED2 = 3.2V, TA = −40°C, 75mA setting)

Flash Current Matching

vs

Flash Current

Code

vs

(VIN= 3.6V, VLED1, VLED2 = 3.2V,

VIN

TA = -40°C to +85°C,

(1)

(VLED1, VLED2 = 3.2V, TA = +25°C, 600mA setting)

Flash Current

vs

VIN

(VLED1, VLED2 = 3.2V, TA = +85°C, 600mA setting)

(VLED1, VLED2 = 3.2V, TA = -40°C, 600mA setting)

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