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Part Number
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LM3643 |
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Manufacturer
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Texas Instruments |
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Description
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Synchronous Boost Dual LED Flash Driver |
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Published
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Mar 14, 2020 |
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Detailed Description
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LM3643, LM3643A
SNVS967A – AUG...
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|
Datasheet
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LM3643
|
Overview
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LM3643, LM3643A
SNVS967A – AUGUST 2014 – REVISED NOVEMBER 2014
LM3643 Synchronous Boost Dual LED Flash Driver with 1.
5-A High-Side Current Sources
1 Features
•1 1.
5 A Total Allowed LED Current During Operation (ILED1 + ILED2 = 1.
5 A)
• Dual Independent LED Current Source Programmability
• Accurate and Programmable LED Current Range from 1.
4 mA to 1.
5 A
• Optimized Flash LED Current During Low Battery Conditions (IVFM)
• 85% Efficiency in Torch Mode (@ 100 mA) and Flash Mode (@1 A to 1.
5 A)
• Grounded Cathode LED Operation for Improved Thermal Management
• Small Solution Size: 16 mm2 • Hardware Stro...
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