ZXSC310中文资料low-voltage-dc-dc-led-drivers数据手册Diodes规格书

描述 Description

The ZXSC310 is a single or multi cell LED driver designed for LCD backlighting applications. The input voltage range of the device is between 0.8V and 8V. This means the ZXSC310 is compatible with single NiMH, NiCd or Alkaline cells, as well as multi-cell or LiIon batteries. The device features a shutdown control, resulting in a standby current less than 5µA, and an output capable of driving serial or parallel LEDs. The circuit generates constant power output, which are ideal for driving single or multiple LEDs over a wide range of operating voltages. These features make the device ideal for driving LEDs particularly in LCD backlight applications for Digital Still cameras and PDA’s. The ZXSC310 is a PFM DC-DC controller IC that drives an external Zetex switching transistor with a very low saturation resistance. These transistors are the best switching devices available for this type of conversion enabling high efficiency conversion with low input voltages. The drive output of the ZXSC310 LED driver generates a dynamic drive signal for the switching transistor. The circuit can start up under full load and operates down to an input voltage of 0.8 volts. The solution configuration ensures optimum efficiency over a wider range of load currents; several circuit configurations are possible depending on battery life versus brightness considerations. The ZXSC310 is offered in the SOT25 package which, when combined with a SOT23 switching transistor, generates a high efficiency small size circuit solution. The IC and discrete combination offers the ultimate cost Vs performance solution for LED backlight applications.

特性 Features

94% efficiency
Minimum operating input voltage 0.8V
Maximum operating input voltage 8V
Standby current less than 5μA
Programmable output current
Series or parallel LED configuration
Low saturation voltage switching transistor
SOT25 package

应用 Application

LCD backlights:
Digital still camera
PDA
Mobile phone
LED flashlights and torches
White LED driving
Multiple LED driving

简介

ZXSC310属于开发板套件编程器的评估板-LED驱动器。由Diodes制造生产的ZXSC310评估板 - LED 驱动器LED 驱动器评估板是带有元器件的电路板，用于提供特定电路或器件的工作实例。该系列评估板提供一个 LED 驱动器实例，用于可调节闪烁、模拟亮度、背光、双极开关、升压转换器、亮度控制、相机闪光灯、可调光、恒流和 RGB 控制，以及更多其他应用。