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TPS61199

現行

適用 LCD 顯示器背光的白光 LED 驅動器

產品詳細資料

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 Duty cycle (max) (%) 94 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 Rating Catalog
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 Duty cycle (max) (%) 94 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 Rating Catalog
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4 SOP (NS) 20 98.28 mm² 12.6 x 7.8
  • 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™
  • 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™

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.

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.

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類型 標題 日期
* Data sheet TPS61199 White-LED Driver for LCD Monitor Backlighting datasheet (Rev. B) PDF | HTML 2016年 11月 23日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Application note Some Guidelines and Tips for the LED Driver Application 2019年 8月 14日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note High-Brightness Portable Lighting 2016年 10月 4日
User guide TPS61199EVM-598 EVM for TPS61199 WLED Driver for LCD Monitor Backlighting 2011年 1月 4日
Application note Description Compensating the Current Mode Boost Control Loop 2010年 12月 9日

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TPS61199EVM-598 — 用於 LCD 顯示器背光的 TPS61199 白光 LED 驅動器的評估模組

This TPS61199EVM-598 contains the Texas Instruments TPS61199, a WLED power solution providing up to eight independently regulated current outputs using a single inductor step-up (boost) converter. The current outputs are ideal for driving a WLED backlight in notebook/laptop computers. This user's (...)

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SLVC386 TPS61199DesignHelp Excel Spreadsheet

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背光 LED 驅動器
TPS61199 適用 LCD 顯示器背光的白光 LED 驅動器
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HTSSOP (PWP) 20 Ultra Librarian
SOP (NS) 20 Ultra Librarian

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