LM2758
- Up to 700-mA Output Current
- 90% Peak Efficiency
- Indicator, Torch, and Flash Modes
- Time-out Circuitry Limits Flash Duration to 814 Milliseconds (Typical)
- Adaptive 1× and 1.5× Gains for Maximum Efficiency
- True Shutdown
- Internal Soft-Start Eliminates Inrush Current
- Ultra-Small Solution Size
- No Inductor, Only 4 Capacitors and a Resistor Required
- 2.022 mm × 1.527 mm × 0.6 mm Thin DSBGA package
The LM2758 device is an integrated low-noise, high-current switched capacitor DC-DC converter with a regulated current sink. The device is capable of driving loads up to 700 mA from a single-cell Li-Ion battery. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.
One external low-power resistor sets the desired current for indicator, torch, and flash modes. To protect the devices and the flash LED, internal time-out circuitry turns off the LM2758 in case of a faulty prolonged flash mode. Internal soft-start circuitry limits the amount of inrush current during start-up.
For all available packages, see the orderable addendum at the end of the data sheet.技術文件
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檢視所有 3 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM2758 Switched Capacitor Flash LED Driver in DSBGA Package datasheet (Rev. E) | PDF | HTML | 2016年 5月 3日 |
| White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21日 | ||
| EVM User's guide | AN-1695 LM2758 Flash LED Driver Evaluation Board (Rev. A) | 2013年 4月 30日 |
設計與開發
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模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YZR) | 12 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 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。