LM3642TLEVM
具有高壓側電流的 LM3642 1.5A 同步升壓 LED 閃光燈驅動器評估模組板
LM3642TLEVM
概覽
1.5A Synchronous Boost LED Flash Driver w/ High-Side Current Evaluation Module Board
The LM3642TL is a 4MHz fixed-frequency synchronous boost converter plus 1.5A constant current driver for a high-current white LED. The high-side current source allows for grounded cathode LED operation providing Flash current up to 1.5A. An adaptive regulation method ensures the current source remains in regulation and maximizes efficiency. The LM3642 is controlled via an I2C-compatible interface. Features include: a hardware flash enable (STROBE) allowing a logic input to trigger the flash pulse and a TX input which forces the flash pulse into a low-current Torch Mode allowing for synchronization to RF power amplifier events or other high-current conditions. The 4MHz switching frequency, over-voltage protection and adjustable current limit settings allows the use of tiny, low-profile inductors and (10 μF) ceramic capacitors.特點
- Synchronization Input for RF Power Amplifier Pulse Events
- 1.5A High-Side Current Source for Single LED
- Accurate and Programmable LED Current from VIN Flash Monitor Optimization
- 400 kHz I2C-Compatible Interface > 85% Efficiency in Torch Mode (@ 100 mA) and Flash Mode (@1A to 1.5A)
- Accurate Programmable Torch LED Currents from 48.4 mA to 375 mA
- Soft-Start Operation for Battery Protection Hardware Strobe Enable
照明 LED 驅動器
訂購並開始開發
開發板
LM3642TLEVM — LM3642 1.5A Synchronous Boost LED Flash Driver w/ High-Side Current Evaluation Module Board
LM3642TLEVM — LM3642 1.5A Synchronous Boost LED Flash Driver w/ High-Side Current Evaluation Module Board
開發模組 (EVM) 的 GUI
SNVC064 — GUI software for LM3642TLEVM and LM3642TL-LTEVM
支援產品和硬體
硬體開發
開發板
SNVC064 — GUI software for LM3642TLEVM and LM3642TL-LTEVM
硬體開發
開發板
版本資訊
The design resource accessed as www.ti.com/lit/zip/snvc064 or www.ti.com/lit/xx/snvc064/snvc064.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC064. Please update any bookmarks accordingly.
模擬型號
SNVM510 — LM3642 Unencrypted PSpice Transient Model Package
支援產品和硬體
產品
照明 LED 驅動器
硬體開發
開發板
SNVM510 — LM3642 Unencrypted PSpice Transient Model Package
產品
照明 LED 驅動器
硬體開發
開發板
技術文件
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檢視所有 3
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | EVM User's guide | LM3642 Evaluation Board (Rev. A) | 2013/4/30 | |||
| 證書 | LM3642TLEVM EU Declaration of Conformity (DoC) | 2019/1/2 | ||||
| 資料表 | LM3642 1.5-A Synchronous Boost LED Flash Driver With High-Side Current Source datasheet (Rev. H) | PDF | HTML | 2015/9/4 |