TPS61162A
- 2.7V to 6.5V input voltage
- Integrated 1.5A/40V MOSFET
- 1.2MHz switching frequency
- Dual current sinks of up to 30mA current each
- 1% typical current matching and accuracy
- Optional 26.5V/37.5V OVP threshold
- TPS61162A: 26.5V OVP
- TPS61163A: 37.5V OVP
- Adaptive boost output to WLED voltages
- Very low voltage headroom control (90mV)
- Flexible digital and PWM brightness control
- One-Wire control interface ( EasyScale™)
- PWM dimming control interface
- Up to 100:1 PWM dimming ratio
- Up to 9-bit dimming resolution
- Up to 90% efficiency
- Built-in soft start
- PFM mode at light load
- Overvoltage protection
- Built-in WLED open/short protection
- Thermal shutdown
- Supports 4.7µH inductor application
The TPS61162A and TPS61163A are dual-channel WLED drivers which provide highly integrated solutions for single-cell Li-ion battery powered smart phone backlight. The devices have a built-in high efficiency boost regulator with integrated 1.5A, 40V power MOSFET and support as low as 2.7V input voltage. With two high current-matching capability current sink regulators, the devices can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allow very low voltage headroom control, thus to improve LED strings efficiency effectively.
The TPS61162A and TPS61163A support both the PWM dimming interface and one-wire digital EasyScale™ dimming interface and can realize 9-bit brightness code programming.
The TPS61162A and TPS61163A integrate built-in soft start, as well as overvoltage, overcurrent, and thermal shutdown protections.
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 | TPS6116xA Dual-Channel WLED Drivers For Smart Phones datasheet (Rev. B) | PDF | HTML | 2024/5/27 | ||
| 白皮書 | Common LED Functions and LED Driver Design Considerations | 2020/9/21 | ||||
| 應用說明 | Simple Backlight Driver Dimming Performance | 2017/3/20 | ||||
| 應用說明 | Analog PWM Dimming in White-LED Drivers | 2016/12/21 |
設計與開發
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SLVC519 — Dimming program for TPS61162A_3AEVM-564
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 9 | Ultra Librarian |