Overview
The NCV78763DQ6AR2G, produced by onsemi, is a highly efficient and integrated smart power ballast and dual LED driver. This single-chip solution is specifically designed for automotive front lighting applications, including high beam, low beam, daytime running light (DRL), turn indicator, fog light, and static cornering. The device offers a comprehensive solution for driving two LED strings up to 60 V, with each channel customizable to meet specific application requirements.
The NCV78763DQ6AR2G features an on-chip diagnostic capability, enhancing safety monitoring from the microcontroller. It also includes a current-mode voltage booster controller and an active input filter, minimizing external component requirements and reducing current ripple from the battery.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Battery Supply Voltage | VBB | -0.3 | 60 | V | |
| LED Supply Voltage | VBOOST | -0.3 | 68 | V | |
| Logic Supply Voltage | VDD | -0.3 | 3.6 | V | |
| MOSFET Gate Driver Supply Voltage | VDRIVE | -0.3 | 12 | V | |
| Buck Switch High Voltage Supply | VINBCKx | 60 | V | ||
| Buck Current Sense Threshold Voltage | VTHR | 31.5 mV | 412 mV | mV | |
| Thermal Resistance (Package to Exposed Pad) | θjc-bot | 3.4 | °C/W |
Key Features
- Single Chip Boost-Buck Solution
- Supports two LED strings up to 60 V
- High Current Capability up to 1.6 A DC per Output
- High Overall System Efficiency
- Minimum of External Components
- Active Input Filter with Low Current Ripple from Battery
- Integrated Switched Mode Buck Current Regulator
- Integrated Boost Current-mode Controller
- Programmable Input Current Limitation
- Average Current Regulation Through the LEDs
- High Operating Frequencies to Reduce Inductor Sizes
- Integrated PWM Dimming with Wide Frequency Range
- Low EMC Emission for LED Switching and Dimming
- SPI Interface for Dynamic Control of System Parameters
- Pb-Free Devices
Applications
- Front Lighting High Beam and Low Beam
- Daytime Running Light (DRL)
- Position or Park Light
- Turn Indicator
- Fog Light and Static Cornering
Q & A
- What is the NCV78763DQ6AR2G designed for?
The NCV78763DQ6AR2G is designed for automotive front lighting applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light, and static cornering.
- How many LED strings can the NCV78763DQ6AR2G support?
The device can support two LED strings up to 60 V.
- What is the maximum current capability per output?
The maximum current capability per output is up to 1.6 A DC.
- Does the NCV78763DQ6AR2G have built-in diagnostic features?
- How does the device manage input current ripple?
The device features an active input filter that minimizes current ripple from the battery.
- What is the thermal resistance of the package to the exposed pad?
The thermal resistance is approximately 3.4°C/W for the QFN32 packages.
- Can the NCV78763DQ6AR2G be programmed dynamically?
- What are the typical operating voltage ranges for the battery supply and logic supply?
The battery supply voltage range is 5 to 40 V, and the logic supply voltage range is 3.15 to 3.4 V.
- How does the device handle PWM dimming?
The device integrates PWM dimming with a wide frequency range and low EMC emission for LED switching and dimming.
- Is the NCV78763DQ6AR2G Pb-free?
