TPS61050
- Four Operational Modes
- Torch and Flash up to ILED = 1200 mA
- Voltage-Regulated Boost Converter: 4.5 V,
5 V, and 5.25 V - Shutdown: 0.3 µlA (Typical)
- Total Solution Circuit Area < 25 mm2
- Up to 96% Efficiency
- I2C-Compatible Interface up to 400 kbps
- Integrated LED Turnon Safety Timer
- Zero Latency TX-Masking Input (TPS61050)
- Hardware Voltage Mode Selection Input
(TPS61052) - Integrated ADC for LED VF Monitoring
- Integrated Low Light Dimming Mode
- LED Disconnect During Shutdown
- Open and Shorted LED Protection
- Overtemperature Protection
- Available in a 12-Pin NanoFree™ (CSP) and
10-Pin QFN Packaging
The TPS6105x device is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current.
The 2-MHz switching frequency allows the use of small and low profile 2.2-µH inductors. To optimize overall efficiency, the device operates with only a 250-mV LED feedback voltage.
The TPS6105x device not only operates as a regulated current source, but also as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system, such as a hands-free audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage (refer to TPS61052).
For highest flexibility, the LED current or the desired output voltage can be programmed through an I2C compatible interface. To simplify flash synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for fast LED turnon time.
When the TPS6105x is not in use, it can be put into shutdown mode through the I2C-compatible interface, reducing the input current to 0.3 µA (typical). During shutdown, the LED pin is high impedance to avoid leakage current through the LED.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS6105x 1.2-A High-Power White LED Driver 2-MHz Synchronous Boost Converter With I2C Compatible Interface datasheet (Rev. A) | PDF | HTML | 2015年 9月 30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 | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 2017年 11月 29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 | TPS61050EVM-269 and TPS61052EVM-269 (Rev. B) | 2007年 11月 29日 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 2006年 9月 15日 |
設計與開發
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TPS61050EVM-215 — TPS61050 評估模組
The TPS61050EVM-215 is an evaluation module for the TPS61050 1.2 A High Power White LED Driver with I²C Compatible Interface. The TPS61050 is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs.
TPS61050EVM-269 — TPS61050 評估模組
The TPS61050EVM-269 facilitates evaluation of the TPS61050 1.2 A High Power White LED Driver IC in the BGA (YZG) package.
The TPS6105x device is based on a high-frequencysynchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency (...)
TPS6105XEVM-SW — TPS6105x 評估模組的軟體
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 |
|---|---|---|
| DSBGA (YZG) | 12 | Ultra Librarian |
| VSON (DRC) | 10 | 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