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TPS61500 - 产品图解：
TPS61500-具有集成 3A、40V 电源开关的高亮度 LED 驱动器
TPS61500-背光-LED驱动器-电源管理
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TI产品 - TPS61500介绍

TPS61500 - 具有集成 3A、40V 电源开关的高亮度 LED 驱动器

TPS61500是TI德州仪器公司的一款背光产品，TPS61500是具有集成 3A、40V 电源开关的高亮度 LED 驱动器，本站介绍了TPS61500的封装应用图解、特点和优点、功能等，并给出了与TPS61500相关的TI元器件型号供参考。

TPS61500 - 具有集成 3A、40V 电源开关的高亮度 LED 驱动器 - 背光 - LED驱动器 - 德州仪器

产品特性
  • 2.9-V to 18-V Input Voltage Range
  • 3-A, 40-V Internal Power Switch
    • Four 3-W LEDs From 5-V input
    • Eight 3-W LEDs From 12-V input
  • High Efficiency Power Conversion: Up to 93%
  • Frequency Set by External Resistor: 200-kHz to 2.2-MHz
  • User Defined Soft Start Into Full Load
  • Programmable Overvoltage Protection
  • Analog and Pure PWM Brightness Dimming
  • 14-Pin HTSSOP Package With PowerPAD™
产品应用
  • Monitor Backlight
  • 1-W or 3-W High-Brightness LED
产品说明

The TPS61500 is a monolithic switching regulator with integrated 3-A, 40-V power switch. It is an ideal driver for high brightness 1-W or 3-W LED. The device has a wide input voltage range to support application with input voltage from multi-cell batteries or regulated 5-V, 12-V power rails.

The LED current is set with an external sensor resistor R3, and the feedback voltage that is regulated to 200-mV by current mode PWM (pulse width modulation) control loop, as shown in the typical application. The device supports analog and pure PWM dimming methods for LED brightness control. Connecting a capacitor to the DIMC pin configures the device to be used for analog dimming, and the LED current varies proportional to the duty cycle of an external PWM signal. Floating the DIMC pin configures the IC for pure PWM dimming with the average LED current being the PWM signal's duty cycle times a set LED current.

The device features a programmable soft-start function to limit inrush current during start-up, and has built-in other protection features, such as pulse-by-pulse over current limit, over voltage protection and thermal shutdown. The TPS61500 is available in 14-pin HTSSOP package with PowerPad.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS61500HTSSOP (14)5.00 mm × 4.40 mm
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