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.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | TPS6105x 1.2-A High-Power White LED Driver 2-MHz Synchronous Boost Converter With I2C Compatible Interface 数据表 (Rev. A) | PDF | HTML | 2015年 9月 30日 | ||
白皮书 | 常见 LED 功能和 LED 驱动器设计注意事项 | 英语版 | 2020年 9月 21日 | |||
应用手册 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018年 12月 11日 | ||||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
应用手册 | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 2017年 11月 29日 | ||||
应用手册 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017年 6月 15日 | ||||
应用手册 | 优化具有内部补偿功能的 DC-DC 转换器的瞬态响应 | 最新英语版本 (Rev.B) | 2008年 7月 15日 | |||
应用手册 | 最小化升压转换器开关节点处的振铃 | 英语版 | 2008年 7月 15日 | |||
EVM 用户指南 | TPS61050EVM-269 and TPS61052EVM-269 (Rev. B) | 2007年 11月 29日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
TPS61050EVM-215 — TPS61050 评估模块
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 评估模块
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 评估模块用软件
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
DSBGA (YZG) | 12 | Ultra Librarian |
VSON (DRC) | 10 | Ultra Librarian |
订购和质量
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- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
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- 封装厂地点
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