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LT3492

Category:LED driver
Product Name:Triple output LED driver with 3000:1 PWM dimming ratio
Manufacturers:LT
Production Batch Number:11+
Encapsulation:QFN-28, TSSOP-28
Stock Status:There is stock
Stock Quantity:1000
Minimum order quantity: 1
Details:

Product introduction

LT3492具 3000:1 PWM 调光比的三通道输出 LED 驱动器

peculiarity

True Color PWM^TM调光可提供高达 3000:1 的调光比
用于 PMOS LED 断接的内置栅极驱动器
具 600mA、60V 内部开关的三个独立驱动器通道
可工作于降压、升压、降压-升压模式
CTRL 引脚可在 10mV 至 100mV 的范围内准确地设定 LED 电流检测门限
可调频率：330kHz 至 2.1MHz
开路 LED 保护
宽输入范围：
工作电压范围为 3V 至 30V
瞬变保护至 40V
表面贴装型组件
28 引脚 (4mm x 5mm) QFN 和 TSSOP 封装

description

LT^®3492 是专为用作一个恒定电流源而设计的三通道输出 DC/DC 转换器，是驱动 LED 的理想选择。LT3492 可工作于降压、升压或降压-升压模式。LT3492 采用一种恒定频率、电流模式架构，因而在一个很宽的电源和输出电压范围内实现稳定操作。一个频率调节引脚允许用户在 330kHz 至 2.1MHz 的范围内设置开关频率，以优化效率和外部组件尺寸。

外部 PWM 输入在每个通道上提供了 3000:1 的 LED 调光控制。三个通道均具有内置栅极驱动器，用于驱动一个外部 LED 断接 P 沟道 MOSFET，从而提供了高调光范围。LT3492 每个通道的输出电流范围利用一个外部检测电阻器来设置。

CTRL 引脚用于调节 LED 电流，以实现模拟调光或过热保护功能。

apply

RGB 照明
广告牌和大型显示器
汽车和航空电子照明
Constant current source

andLT3492Related ICs are:

Model	Manufacturers	lot number	encapsulation	illustrate
LT3492	LT	11+	QFN-28, TSSOP-28	Triple output LED driver with 3000:1 PWM dimming ratio
LM3492QMH/NOPB		10+11+		Hong Kong spot, imported original
MC34922PN8	FREESCALE	Up-to-date updates	QFN	Brand new original
TLV3492AIDCNT	TI	06+	SOT23-8	Dual low-power push-pull output comparators
LM3492MH/NOPB	National	10+	TSSOP-20	LED driver
TLV3492A-EP	TI	10+	8SOIC	Enhanced 1.8 V nanowatt power push-pull output comparator
TLV3492	TI	10+	8SOIC, 8SOT-23	Dual nanowatt power push-pull output comparators

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