Overview
The NCV78702MW0AR2G, produced by onsemi, is a highly efficient, single-chip multiphase booster LED driver designed specifically for automotive front lighting applications. This device is optimized for driving high-current LEDs and can be used in various lighting configurations such as high beam, low beam, daytime running lights (DRL), turn indicators, fog lights, and static cornering lights. The NCV78702 features a current-mode voltage boost controller and an integrated active input filter, minimizing the need for external components. It also supports SPI programmability, allowing dynamic control of system parameters and supporting multiple application platforms with a single hardware configuration.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Battery Supply Voltage | VBB | -0.3 | - | 36 | V |
| Logic Supply Voltage | VDD | -0.3 | - | 3.6 | V |
| Gate Driver Supply Voltage | VDRIVE | -0.3 | - | 12 | V |
| Thermal Shutdown | TSD | 165 | 170 | 175 | °C |
| High-Side Switch Impedance | RONHI | 4.2 | - | 7 | Ω (at 25°C) |
| Low-Side Switch Impedance | RONLO | 4.2 | - | 7 | Ω (at 25°C) |
| Booster Regulation Level | BST_REG | - | - | - | mV/μs |
Key Features
- Single Chip Design
- Multiphase Booster Capability (2-phase, 3-phase, 4-phase)
- High Overall Efficiency
- Minimum of External Components Required
- Active Input Filter with Low Current Ripple from Battery
- Integrated Boost Controller
- Programmable Input Current Limitation
- High Operating Frequencies to Reduce Inductor Sizes
- PCB Trace for Current Sense Shunt Resistor Possible
- Low EMC Emission
- SPI Interface for Dynamic Control of System Parameters
- Fail Safe Operating (FSO) Mode and Stand-Alone Mode
- Integrated Failure Diagnostic
Applications
- High Beam
- Low Beam
- Daytime Running Lights (DRL)
- Position or Park Light
- Turn Indicator
- Fog Light
- Static Cornering Light
Q & A
- What is the primary function of the NCV78702MW0AR2G?
The NCV78702MW0AR2G is a single-chip multiphase booster LED driver designed for automotive front lighting applications.
- What are the typical applications of the NCV78702MW0AR2G?
It is used in high beam, low beam, DRL, turn indicators, fog lights, and static cornering lights.
- What is the maximum battery supply voltage for the NCV78702MW0AR2G?
The maximum battery supply voltage is 36 V.
- Does the NCV78702MW0AR2G support SPI programmability?
- What is the thermal shutdown temperature for the NCV78702MW0AR2G?
The thermal shutdown temperature is between 165°C and 175°C.
- Can the NCV78702MW0AR2G operate in multiphase configurations?
- What is the purpose of the integrated active input filter?
The integrated active input filter minimizes current ripple from the battery.
- Does the NCV78702MW0AR2G have built-in failure diagnostic capabilities?
- What is the maximum logic supply voltage for the NCV78702MW0AR2G?
The maximum logic supply voltage is 3.6 V.
- Can the NCV78702MW0AR2G be used in stand-alone mode?
