TPS60255
- 2.7 V to 6.0 V Input Voltage Range
- 1× and 1.5× Charge Pump
- Auto Switching Between 1× and 1.5× Modes
- 750 kHz Charge Pump Frequency
- Seven Individually-regulated WLED Current Sinks
- Single- Wire Interface for Dimming and ON/OFF Control
- 25 mA max LED Current for Six Current Sinks
- One 80 mA Current Sink
- Open WLED Detection
- Built-in Soft Start and Current Limit
- 16-pin, 3 mm × 3 mm QFN Package
- APPLICATIONS
- Cellular Phones
- Portable Navigation Displays
- Multi-display Handheld Devices
The TPS60255 is a high-efficiency, constant frequency charge pump DC/DC converter that uses 1× and 1.5× conversion to maximize efficiency for the input voltage range. By using adaptive 1×/1.5× charge-pump modes and very low dropout current regulators, the TPS60255 achieves high efficiency for the entire one-cell lithium battery range. The protection features include soft start, over-current limit, thermal shut down, and over-voltage detection. The device automatically detects and removes unused current sinks from the control loop.
This device drives six 25 mA current sinks and one 80 mA current sink. These current regulators are programmed by three independent brightness registers and five ON/OFF bits using a single-wire interface (EasyScale™). This offers flexible applications for a variety of lighting control in portable devices.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs DRIVER WITH 1 WIRE INTERFACE datasheet | 2008年 3月 24日 | |
White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21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 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017年 6月 15日 | ||
EVM User's guide | TPS60255EVM-262 | 2008年 3月 3日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS60255EVM-SW — TPS60255 EVM 軟體
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
WQFN (RTE) | 16 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。