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reference designNCV78825DQ0R2G | Demoboard NCV78825R1DAGEVB: NCV78825 Daughter board

Onsemi NCV78825DQ0R2G | Demoboard NCV78825R1DAGEVB: NCV78825 Daughter board

High Efficiency 3 A Synchronous Buck Dual LED Driver with Integrated High Side Switch and Current Sensing for Automotive Front Lighting

Overview

TopologyBuck Converter
Input voltage1-68 V
Output 160 V / 3 A

Description

The NCV78825R1DAGEVB is a form factor Reference Design of High Efficiency Dual Channel / 2 x 3 A Synchronous Buck LED Driver with Integrated High Side Switch and Current Sensing for Automotive Front Lighting. The reference design can be interfaced via I/O pins and the SPI bus to an external microcontroller. It can be combined with Multiphase Boost Controller daughter boards and create evaluation kit which provides a complete solution turning SPI commands into LED string control. Note: This board is part of the NCV78825R1GEVK LED Driver Evaluation Kit.

Features

  • Single Chip
  • Buck Topology
  • 2 LED Strings up−to 60 V
  • High Current Capability up to 3 A DC per Output
  • Integrated High Side Switch
  • Low Side Pre−driver for External NMOS Device
  • High Overall Efficiency
  • Minimum of External Components
  • Integrated High Accuracy Current Sensing
  • Integrated Switched Mode Buck Current Regulator
  • Average Current Regulation Through the LEDs
  • High Operating Frequencies to Reduce Inductor Sizes
  • Low EMC Emission for LED Switching and Dimming
  • SPI Interface for Dynamic Control of System Parameters
  • Fail Safe Operating (FSO) Mode, Stand−Alone Mode
  • Master−Slave Synchronization Mode of the Buck Channels
  • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
  • This is a Pb−Free Device

Typical applications

  • High Beam, Low Beam, DRL, Position or Park Light , Turn Indicator, Fog, Static Cornering

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
Pins
Type
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
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744770147
SPECWE-PD SMT Power Inductor, 47 µH, 3.3 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance47 µH
Saturation Current @ 10%3.3 A
Saturation Current @ 30%4.3 A
Rated Current3 A
Performance Rated Current4.25 A
DC Resistance64 mΩ
Self Resonant Frequency7.9 MHz
Size1280 
VersionStandard 
Pins2 
–
MountSMT 
Length12 mm
Height8 mm
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Operating Temperature -40 °C up to +125 °C
–Check availability
61301221121
SPECWR-PHD Pin Header - Dual, –, –

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation–
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Dual
–
–
–
–
–
–
–
–
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Pins12 
TypeStraight 
MountTHT 
Length15.24 mm
–
Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability
61301621121
SPECWR-PHD Pin Header - Dual, –, –
Simu­lation–
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Dual
–
–
–
–
–
–
–
–
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Pins16 
TypeStraight 
MountTHT 
Length20.32 mm
–
Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability