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TPS61162A - 产品图解：
TPS61162A-用于智能手机的双通道白光发光二级管 (WLED) 驱动器 ..
TPS61162A-背光-LED驱动器-电源管理
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TI产品 - TPS61162A介绍

TPS61162A - 用于智能手机的双通道白光发光二级管 (WLED) 驱动器 ..

TPS61162A是TI德州仪器公司的一款背光产品，TPS61162A是用于智能手机的双通道白光发光二级管 (WLED) 驱动器 ..，本站介绍了TPS61162A的封装应用图解、特点和优点、功能等，并给出了与TPS61162A相关的TI元器件型号供参考。

TPS61162A - 用于智能手机的双通道白光发光二级管 (WLED) 驱动器 .. - 背光 - LED驱动器 - 德州仪器

产品特性
  • 2.7-V to 6.5-V Input Voltage
  • Integrated 1.5-A/40-V MOSFET
  • 1.2-MHz Switching Frequency
  • Dual Current Sinks of up to 30-mA Current Each
  • 1% Typical Current Matching and Accuracy
  • Optional 26.5-V / 37.5-V OVP Threshold
    • TPS61162A: 26.5-V OVP
    • TPS61163A: 37.5-V OVP
  • Adaptive Boost Output to WLED Voltages
  • Very Low Voltage Headroom Control (90 mV)
  • Flexible Digital and PWM Brightness Control
  • One-Wire Control Interface (EasyScale™)
  • PWM Dimming Control Interface
  • Up to 100:1 PWM Dimming Ratio
  • Up to 9-Bit Dimming Resolution
  • Up to 90% Efficiency
  • Built-in Soft Start
  • PFM Mode at Light Load
  • Overvoltage Protection
  • Built-in WLED Open/Short Protection
  • Thermal Shutdown
  • Supports 4.7-µH Inductor Application
产品应用
  • Smart Phones
  • PDAs, Handheld Computers
  • GPS Receivers
  • Backlight for Small and Media Form-Factor LCD Display with Single-Cell Battery Input
产品说明

The TPS61162A and TPS61163A are dual-channel WLED drivers which provide highly integrated solutions for single-cell Li-ion battery powered smart phone backlight. The devices have a built-in high efficiency boost regulator with integrated 1.5-A, 40-V power MOSFET and support as low as 2.7-V input voltage. With two high current-matching capability current sink regulators, the devices can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allow very low voltage headroom control, thus to improve LED strings efficiency effectively.

The TPS61162A and TPS61163A support both the PWM dimming interface and one-wire digital EasyScale™ dimming interface and can realize 9-bit brightness code programming.

The TPS61162A and TPS61163A integrate built-in soft start, as well as overvoltage, overcurrent, and thermal shutdown protections.

产品器件信息
PART NUMBERPACKAGEOPEN LED PROTECTION
TPS61162ADSBGA (9)TPS61162A use 26.5 V (typical)
TPS61163ATPS61162A use 37.5 V (typical)
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