SGM3784

不推荐用于新设计

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

SGM3784.pdf

SGM3784 的状态是不推荐用于新设计或已停产。您可选用下面的类似产品：

SGM3785S

量产

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

应用

Camera-Enabled Mobile Phones and Smart-Phones

Camcorders, PDAs and DSCs

订购信息

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	不推荐用于新设计	WLCSP-2×1.6-12B	12	Yes	Yes	Yes	Yes		-40℃ to +85℃	查看	查看

* 价格仅供参考。请联系我们的经销商获取正式报价。

** 交货时间仅供参考，可能会根据不同情况而发生变化。