SGM3784

新規設計に推奨しません

Dual 1.1A LED Flash Driver with I<sup>2</sup>C-Compatible Interface

SGM3784.pdf

SGM3784新規にお勧めません。同等品があります。

SGM3785S

アクティブ

2MHz, 1.5A Flash LED Driver

The SGM3784 is a dual high efficiency white LED flash driver with a 1.6MHz or 3MHz synchronous PWM boost converter and two current sources. High switching frequency makes it easy to use tiny components and optimized for compact solutions. These features make the SGM3784 ideal for high-resolution camera phone applications.

The I²C-compatible interface allows the dynamic programming of currents and the flash timer for safety, as well as readback of system status registers. The SGM3784 has a programmable DC battery current limit that allows maximum LED current for systems with significant variation in LED forward and battery voltages. The LED flash driver offers excellent conversion efficiency within the entire battery voltage range.

A Transmitter Mask (TxMASK) input can be set through the GPIO pin. When it acts as a TxMASK input, the flash currents for LED1 and LED2 are reduced to the programmed TxMASK current levels.

The SGM3784 is available in a WLCSP-2×1.6-12B package. It operates over an ambient temperature range of -40℃ to +85℃.

特性

Up to 95% Efficiency
3MHz Synchronous Inductive Boost Converter
No External Diode and 1μH Tiny Inductor
Control through I²C-Compatible Interface or External Input Pins (STROBE and GPIO)
Programmable I²C Interface
w  Up to 1.1A Current for Each LED Output in Flash Mode when VIN is not Lower than 3.6V (The Combined LED Current is Total 1.5A when VIN is Lower than 3.6V)
w  Torch Mode
w  1600ms Maximum Programmable Flash Timer
w  Programmable DC Battery Current Limit
w  Automatically Reducing LED Current during Low Battery Voltage
Protection Features
w  Inductor Peak Current Limit
w  LED Open or Short Protection
w  Thermal Shutdown
LED Cathode Grounding for Enhanced Thermal Dissipation and Simplified Routing due to Parallel Current Sources
Available in a Green WLCSP-2×1.6-12B Package

アプリケーション

Camera-Enabled Mobile Phones and Smart-Phones

Camcorders, PDAs and DSCs

注文書

Part Number	Status	Package	Pins	Pd-Free	RoHS	REACH	Green	MSL Rating	Operating Temperature Range	Material Content	Reliability Report	Unit Resale Price* (Volume Range: in USD)	Lead Time** (Volume Range: Days)
SGM3784YG/TR	新規設計に推奨しません	WLCSP-2×1.6-12B	12	Yes	Yes	Yes	Yes		-40℃ to +85℃	閲覧	閲覧

* 再販価格は参考価格です。正式な見積もりについては、代理店にお問い合わせください。

** 提供されるリードタイムは参考情報であり、異なる状況に応じて変更される可能性があります。