The TPS61183 device provides a highly integrated white-LED (WLED) driver solution for notebook LCD backlights. This device has a built-in high-efficiency boost regulator with integrated 2-A, 40-V power MOSFET. The six current sink regulators provide high-precision current regulation and matching. The device can support a total of up to 60 WLEDs. In addition, the boost output automatically adjusts its voltage to the WLED forward voltage to optimize efficiency.

The TPS61183 supports the programmable brightness dimming method. In this configuration, the dimming duty cycle of the WLED current is controlled by the input PWM signal but the dimming frequency is fixed and set by an external resistor. During direct PWM dimming, the WLED current completely synchronized with the input PWM signal's duty cycle and frequency.

For all available packages, see the orderable addendum at the end of the data sheet.

• 4.5-V to 24-V Input Voltage
• 38-V Maximum Output Voltage
• Integrated 2-A, 40-V MOSFET
• 280-kHz to 1-MHz Programmable Switching Frequency
• Adaptive Boost Output to WLED Voltages
• Wide PWM Dimming Frequency Range
  • 100 Hz to 50 KHz for Direct PWM Mode
  • 100 Hz to 22 KHz for Frequency Programmable Mode
• 100:1 Dimming Ratio at 20 kHz
• 10000:1 Dimming Ratio at 200 Hz (Direct PWM mode)
• Small External Components
• Integrated Loop Compensation
• Six Current Sinks of 30 mA, Maximum
• 1.5% (Typical) Current Matching
• PWM Brightness Interface Control
• PWM Programmable Mode Brightness Dimming Method or Direct PWM Dimming Method
• 4000-V HBM ESD Protection
• Programmable Overvoltage Threshold
• Built-in WLED Open and Short Protections
• Thermal Shutdown

• Number of channels (#)
• 6
• Vin (Min) (V)
• 4.5
• Vin (Max) (V)
• 24
• Vout (Min) (V)
• 5
• Vout (Max) (V)
• 40
• Type
• Inductive
• Switching frequency (Max) (kHz)
• 1200
• LED current per channel (mA)
• 30
• Peak efficiency (%)
• 94
• Topology
• Boost
• Features
• Load Disconnect During Shutdown
• Operating temperature range (C)
• -40 to 85

TPS61183的完整型号有：TPS61183RTJR、TPS61183RTJT，以下是这些产品的关键参数及官网采购报价：

TPS61183RTJR，工作温度：-40 to 85，封装：QFN (RTJ)-20，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS61183RTJR的批量USD价格：.859（1000+）

TPS61183RTJT，工作温度：-40 to 85，封装：QFN (RTJ)-20，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS61183RTJT的批量USD价格：1.031（1000+）

TPS61183EVM-528 — 用于 TPS61183 IC 的评估模块

TPS61183/7EVM-528 评估模块包含德州仪器 (TI) 配置为 WLED 电源解决方案的 TPS61183 或 TPS61187 IC，可使用单个感应升压转换器提供多达六个独立调节的电流输出。这种电流输出非常适合驱动笔记本电脑/膝上型电脑的 WLED 背光。本用户指南涵盖 EVM 规范、推荐测试设置、测试结果、材料清单以及原理图。

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