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.技術資料
| 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| * | データシート | TPS61199 White-LED Driver for LCD Monitor Backlighting データシート (Rev. B) | PDF | HTML | 2016/11/23 | ||
| ホワイト・ペーパー | Common LED Functions and LED Driver Design Considerations.. | 英語版 | 2020/09/21 | |||
| アプリケーション・ノート | Some Guidelines and Tips for the LED Driver Application | 2019/08/14 | ||||
| アプリケーション・ノート | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| セレクション・ガイド | 電源 IC セレクション・ガイド 2018 (Rev. R 翻訳版) | 英語版 (Rev.R) | 2018/09/13 | |||
| アプリケーション・ノート | High-Brightness Portable Lighting | 2016/10/04 | ||||
| EVM ユーザー ガイド (英語) | TPS61199EVM-598 EVM for TPS61199 WLED Driver for LCD Monitor Backlighting | 2011/01/04 | ||||
| アプリケーション・ノート | Description Compensating the Current Mode Boost Control Loop | 2010/12/09 |
設計と開発
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TPS61199EVM-598 — 評価モジュール、TPS61199 用、LCD モニタ・バックライト用白色 LED ドライバ
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
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
| SOP (NS) | 20 | Ultra Librarian |
購入と品質
推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス デザインが存在する可能性があります。