TPS61199
- 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.技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS61199 White-LED Driver for LCD Monitor Backlighting datasheet (Rev. B) | PDF | HTML | 2016/11/23 | ||
| 白皮書 | Common LED Functions and LED Driver Design Considerations | 2020/9/21 | ||||
| 應用說明 | Some Guidelines and Tips for the LED Driver Application | 2019/8/14 | ||||
| 應用說明 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | High-Brightness Portable Lighting | 2016/10/4 | ||||
| EVM User's guide | TPS61199EVM-598 EVM for TPS61199 WLED Driver for LCD Monitor Backlighting | 2011/1/4 | ||||
| 應用說明 | Description Compensating the Current Mode Boost Control Loop | 2010/12/9 |
設計與開發
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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 (...)
SLVC386 — TPS61199DesignHelp Excel Spreadsheet
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
| SOP (NS) | 20 | Ultra Librarian |
訂購與品質
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