現在提供此產品的更新版本
功能相同,但引腳輸出與所比較的裝置不同
TL4242
- Adjustable Constant Current up to 500 mA (±5%)
- PWM Brightness Regulation
- Wide Input Voltage Range up to 42 V
- Low Drop Voltage
- Open-Load Detection
- Overtemperature Protection
- Short-Circuit Proof
- Reverse-Polarity Proof
- Wide Temperature Range: –40°C to 150°C
The TL4242 device is an integrated, adjustable, constant-current source that can drive loads up to 500 mA. The output current level can be adjusted through an external resistor. The device is designed to supply high-power LEDs. The TL4242 is provided in the DRJ (WSON) package. Protection circuits prevent damage to the device in case of overload, short circuit, reverse polarity, and overtemperature. The connected LEDs are protected against reverse polarity as well as excess voltages up to 45 V.
The integrated PWM input of the TL4242 permits LED brightness regulation by pulse-width modulation (PWM). Due to the high input impedance of the PWM input, the LED driver can be operated as a protected high-side switch.
The TL4242 is characterized for operation from 40°C to 150°C.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TL4242 500-mA, Adjustable, Constant-Current LED Driver datasheet (Rev. B) | PDF | HTML | 2014年 3月 5日 |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
User guide | TL4242EVM-543 User's Guide | 2009年 10月 28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)。
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 |
---|---|---|
WSON (DRJ) | 8 | 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。