High Efficiency Step-Up 3-Ch LED Driver, 42V OVP
- KTD3118: 2 strings, 20 LEDs total
- KTD3119: 3 strings, 30 LEDs total
- High efficiency: up to 90%
- High frequency step-up converter (800kHz)
- Wide input range: 2.7V to 5.5V
- Integrated 45V Power MOSFET
- Internal compensation and soft start
- Integrated 2- or 3-channel current sink
- Preset 25mA full-scale current per channel
- 1.5% Typ. current matching
- PWM dimming with < 0.3µs rise/fall time
- Low quiescent current
- LED open/short protection
- 42V LED open-circuit (OVP) threshold
- Cycle-by-cycle inductor current limit
- < 1µA shutdown current
- Pb-free Package: WLCSP-9 1.2mm x 1.2mm
- -40°C to +85°C Temperature Range
Applications
- Smartphone
- PDA
- GPS
- Portable media players
- Other 1-cell Li Ion LED applications
Key Electrical Specifications
Vin(Min) |
Vin(Max) |
Max. Current per Channel |
Channels |
Control Type |
Package |
2.7V |
5.5V |
25mA |
3 |
PWM |
WLCSP-9 |
Typical Application Diagram