onsemi NCV78703 LED Driver ICs
onsemi NCV78703 LED Driver ICs are single-chip and highly efficient boosters for smart power ballast and LED drivers. These driver ICs are multiphase booster LED drivers designed for automotive front lighting applications. The NCV78703 is in particular designed for high-current LEDs with NCV78723 (dual channel buck)/713 (single channel). This provides a complete solution to drive multiple LED strings of up to 60V. The NCV78703 driver ICs include a current-mode voltage boost controller that also acts as an input filter with a minimum of external components. These driver ICs are ideal for high beam, low beam, DRL, position or park light, turn indicator, fog, and static cornering.
Features
- Single chip
- Multiphase booster
- High overall efficiency
- Minimum of external components
- Active input filter with low current ripple from the battery
- Integrated boost controller
- Programmable input current limitation
- High operating frequencies to reduce inductor sizes
- PCB trace for the current sense shunt resistor is possible
- Low EMC emission
- SPI interface for dynamic control of system parameters
- Fail-Save Operating (FSO) mode and stand-alone mode
- Integrated failure diagnostic
Applications
- High beam
- Low beam
- DRL
- Position or park light
- Turn indicator
- Fog
- Static cornering
Application Schematic
Block Diagram
Publicerad: 2025-07-09
| Uppdaterad: 2025-07-16