TPS61181AEVM-259
適用於筆記型電腦應用之 TPS61181A 6 燈串 LED 驅動器的評估模組
TPS61181AEVM-259
概覽
The TPS61181AEVM-259 user's guide describes the characteristics, operation, and use of the TPS6118xEVM-259 evaluation module (EVM). This EVM contains either Texas Instruments' TPS61181 (-001 build) or TPS61182 (-002 build) or TPS61181A (-003 build)-based WLED power solutions, each of which provides up to six 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. A separate EVM, WLEDEVM-260, contains eight strings of 10 series WLEDs and connects to the TPS6118x EVMs via a 14-pin ribbon cable to simplify evaluation. This user's guide includes EVM specifications, recommended test setup, test results, bill of materials, and a schematic diagram for the TPS61181/2/1AEVM.
特點
- 4.5 V to 24 V Input Voltage
- 38V Maximum Output Voltage
- Integrated 1.5 A/40 V MOSFET
- 1.0-MHz Switching Frequency
- Adaptive Boost Output to WLED Voltages
- Small External Components
- Integrated Loop Compensation
- Six Current Sinks of 30 mA
- Up to 10 WLED in Series
- 1% Typical Current Matching and Accuracy
- Up to 1000:1 PWM Brightness Dimming
- Minimized Output Ripple Under PWM Dimming
- Driver for Input/Output Isolation PFET
- True Shutdown
- Over Voltage Protection
- WLED Open/Short Protection
- Built-in Soft Start
背光 LED 驅動器
技術文件
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | EVM User's guide | TPS61181EVM-259 / TPS61182EVM-259 (Rev. B) | 2011/5/12 | |||
| 證書 | TPS61181AEVM-259 EU Declaration of Conformity (DoC) | 2019/1/2 |