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LM3554 Fiches technique(PDF) 14 Page - Texas Instruments

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No de pièce LM3554
Description  Synchronous Boost Converter with 1.2A Dual High Side LED Drivers and I2C Compatible
PDF  43 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM3554 Fiches technique(HTML) 14 Page - Texas Instruments

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LM3554
SNVS549A – JUNE 2009 – REVISED APRIL 2011
www.ti.com
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.
Load Transient
Line Transient
VIN = 3.6V
IOUT = 500mA
(Voltage Output Mode, VOUT = 5V)
(Voltage Output Mode, VOUT = 5V)
Channel 1: VOUT (500mV/div, AC Coupled)
Channel 3 (Top Trace): VIN (1V/div)
Channel 4: IOUT (200mA/div)
Channel 1: VOUT (100mV/div, AC Coupled)
Channel 2: IL (500mA/div)
Channel 2: IL + IIN (500mA/div)
Time Base: (40µs/div)
Time Base: (200µs/div)
Flash Pulse to HWEN Low
Flash Pulse to Flash Pulse + VOUT Mode
Single LED, ILED = 1.2A
Single LED, ILED = 1.2A, VOUT = 5V
Channel 1: VOUT (2V/div)
Channel 1: VOUT (2V/div)
Channel 4: ILED (500mA/div)
Channel 4: ILED (500mA/div)
Channel 2: IL (1A/div)
Channel 2: IL (1A/div)
Channel 3: HWEN (5V/div)
Channel 3: ENVM (5V/div)
Time Base: (20µs/div)
Time Base: (100µs/div)
14
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Product Folder Links: LM3554



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