LED Driver
WT7238
【 General Description 】 | |
The WT7238 is a capable of driving up to four high constant current outputs. | |
The controller can be via I2C interface control the LED dimming function. The IC provides the user with over temperature protection and LED open/short function. The IC has high accurate current drivers with a minimized current mismatch among LED strings. |
【 Features 】 | |
● | Supports I2C protocol dimming control |
● | Supports I2C Brightness control mode 256 step dimming control |
● | Output voltage from Input voltage to 60V |
● | 4-channel constant current output |
● | Auto setting the step-up controller regulates output just above the highest LED string voltage |
● | ±3% regulates string current accuracy and ±6% between ICs |
● | Output current set by an external resistor (range: 150 to 350mA per channel) |
● | LED open/short protection |
● | Over-Temperature protection |
● | Under-Voltage protection |
● | Low Standby Current |
● | Package type :16-pin SOP with exposed pad, Green package |