The TPS61199 provides highly integrated solutions for large size LCD backlighting. This device integrates a current-mode boost controller and eight current sinks for driving up to eight LED strings with multiple LEDs in series. Each string has an independent current regulator with current matching between strings reaching 3% regulation accuracy. The device automatically adjusts the output voltage of the boost converter to provide only the voltage required by the LED string with the largest forward voltage drop plus the minimum required voltage at the IFBx pin of that string, thereby optimizing efficiency of the driver.

The TPS61199 provides PWM brightness dimming with an external PWM signal. The signal of the PWM maximum frequency can be as high as 22 kHz. Dimming ratios up to 5000:1 can be achieved with a 200-Hz PWM signal. The TPS61199 integrates overcurrent protection for the switch FET, soft start-up, LED short protection, LED open protection, and overtemperature shutdown protection. The TPS61199 device is available in 20-pin SO and HTSSOP packages.

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

• 8-V to 30-V Input Voltage
• Integrated High-Power Boost Controller
• Adaptive Boost Output for LED Voltages
• Drive up to Eight LED Strings in Parallel
• Maximum 70 mA for Each LED String
• 3% Current Matching Between Strings
• 5000:1 PWM Dimming Ratio at 200 Hz
• MOSFET Overcurrent Protection
• Programmable LED Short Protection
• Adjustable LED Open Protection
• Thermal Shutdown Protection
• 20-Pin SO Package and TSSOP Package With PowerPAD?

• Number of channels (#)
• 8
• Vin (Min) (V)
• 8
• Vin (Max) (V)
• 30
• Vout (Min) (V)
• 8
• Vout (Max) (V)
• 60
• Type
• Inductive
• Switching frequency (Max) (kHz)
• 800
• LED current per channel (mA)
• 70
• Peak efficiency (%)
• 95
• Topology
• Boost
• Features
• Adjustable Switch Frequency, Enable/Shutdown, OVP, PWM Control, Thermal Shutdown
• Operating temperature range (C)
• -40 to 85

TPS61199的完整型号有：TPS61199NSR、TPS61199PWP、TPS61199PWPR，以下是这些产品的关键参数及官网采购报价：

TPS61199NSR，工作温度：-40 to 85，封装：SO (NS)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS61199NSR的批量USD价格：0.578（1000+）

TPS61199PWP，工作温度：-40 to 85，封装：HTSSOP (PWP)-20，包装数量MPQ：70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TPS61199PWP的批量USD价格：0.63（1000+）

TPS61199PWPR，工作温度：-40 to 85，封装：HTSSOP (PWP)-20，包装数量MPQ：2000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TPS61199PWPR的批量USD价格：0.525（1000+）

TPS61199EVM-598 — 用于 LCD 显示器背光的 TPS61199 白光 LED 驱动器的评估模块

此 TPS61199EVM-598 包含德州仪器 (TI) TPS61199，这款 WLED 电源解决方案使用一个单独的电感器升压转换器提供多达八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。本用户指南包括 EVM 规范、建议的测试设置、物料清单和原理图。本用户指南描述了 TPS61199 评估模块 (EVM) 的特性、操作和使用。

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