UU28141 Description
The UTC UU28141 is a high frequency, asynchronous boost converter. The internal MOSFET can support up to 8 White LEDs for backlighting and OLED power application, and the internal soft start function can reduce the inrush current. The UTC UU28141 uses current mode, 1.0MHz fixed frequency architecture to regulate the LED current, which is set through an external current sense resistor.
UU28141 Key Features
- 2.5V~5.5V operating input voltage range
- Drives up to 8 series White LEDs
- 1.0MHz Fixed Switching Frequency
- Wide range for PWM dimming (200Hz~200KHz)
- Internal 1.4A switching current limit
- Over Voltage Protection (OVP)
- Internal Soft-start Function
- Current limit and Thermal shutdown protection
- Under voltage Lockout
- ORDERING INFORMATION