LP5524开发板套件编程器的评估板-LED驱动器规格书PDF中文资料

LP5524属于开发板套件编程器的评估板-LED驱动器。由德州仪器制造生产的LP5524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。

1 Features

1• Wide Input Voltage Range: 2.7 V to 5.5 V

• High-Side LED Driver

• Drives Four LEDs With up to 25 mA per LED

• 0.4% Typical Current Matching

• PWM Brightness Control

• Overcurrent Protection

• Fast Transient Response

• Optional External ISET Resistor

• Ultra-Small Solution Size:

– No External Components

– 9-Pin DSBGA Package with 0.4-mm pitch:

– 1.24 mm × 1.24 mm × 0.6 mm (L × W × H,

maximum)

2 Applications

• Sub-Display Backlight

• Keypad LED Backlight

• Indicator LED

3 Description

The LP5524 device is a highly integrated dual-zone

LED driver that can drive up to four LEDs in parallel

with a total output current of 100 mA. Regulated highside

internal current sources deliver excellent current

and brightness matching in all LEDs.

The LP5524 provides overcurrent protection and

pulse-width modulation (PWM) control of four

indicator LEDs without the need for external

components.

LED driver current sources are split into two

independently controlled banks for driving secondary

displays, keypad and indicator LEDs. Brightness

control is achieved by applying PWM signals to each

enable pin. Default LED current is factoryprogrammable

and an optional external resistor can

be used to set LED current to user programmable

values.

The LP5524 is available in a tiny, 9-pin, thin DSBGA

package.