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TPS61061 - 产品图解：
TPS61061-具有亮度控制的 19V 400mA 开关 1MHz 升压转换器，用于白光 LED 电源
TPS61061-背光-LED驱动器-电源管理
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TI产品 - TPS61061介绍

TPS61061 - 具有亮度控制的 19V 400mA 开关 1MHz 升压转换器，用于白光 LED 电源

TPS61061是TI德州仪器公司的一款背光产品，TPS61061是具有亮度控制的 19V 400mA 开关 1MHz 升压转换器，用于白光 LED 电源，本站介绍了TPS61061的封装应用图解、特点和优点、功能等，并给出了与TPS61061相关的TI元器件型号供参考。

TPS61061 - 具有亮度控制的 19V 400mA 开关 1MHz 升压转换器，用于白光 LED 电源 - 背光 - LED驱动器 - 德州仪器

产品特性
  • LED Driver With Integrated Overvoltage and Short-Circuit Protection
  • 2.7-V to 6-V Input Voltage Range
  • 500-mV or 250-mV Feedback Voltage
  • TPS61060 Powers up to 3 LEDs
  • TPS61061 Powers up to 4 LEDs
  • TPS61062 Powers up to 5 LEDs
  • PWM Brightness Control on Enable
  • Digital Brightness Control on ILED
  • 1-MHz Fixed Switching Frequency
  • 400-mA Internal Power MOSFET Switch
  • LEDs Disconnected During Shutdown
  • Operates With Small-Output Capacitors Down to 220 nF
  • Up to 80% Efficiency
  • 8-Pin NanoFree™ Package (Chipscale, CSP)
  • 3-mm × 3-mm QFN Package
产品应用
  • White LED Drivers
  • Cellular Phones
  • PDAs, Pocket PCs, and Smart Phones
  • Digital Still Cameras
  • Handheld Devices
产品说明

The TPS6106x is a high-frequency, synchronous boost converter with constant current output to drive up to five white LEDs. For maximum safety, the device features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz fixed switching frequency to allow for the use of small external components and to simplify possible EMI problems. The device comes with three different overvoltage protection thresholds (14 V, 18 V, and 23 V) to allow inexpensive and small-output capacitors with lower voltage ratings. The LED current is initially set with the external sense resistor Rs, and the feedback voltage is regulated to 500 mV or 250 mV, depending on the configuration of the ILED pin. Digital brightness control is implemented by applying a simple digital signal to the ILED pin. Alternatively, a PWM signal up to 1 kHz can be applied to the enable pin to control the brightness of the LED. During shutdown, the output is disconnected from the input to avoid leakage current through the LEDs.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS61060, TPS61061, TPS61062VSON (8)3.00 mm × 3.00 mm
DSBGA (8)1.446 mm × 1.446 mm
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