DATA SHEET

www.onsemi.com

 Semiconductor Components Industries, LLC, 2022

July, 2024 − Rev. 1

1

Publication Order Number:

NCV78514/D

1-Channel Automotive LED

Driver

H−Bridge 1.5 A, 60 V − TSSOP16−EP

NCV78514

The NCV78514 is a part of the onsemi LED driver solution family

for the automotive market. It’s main emphasis is on supporting MCU

less applications by integrating smart features like derating based on

input voltage and temperature of the LED string. The device is

optimized for a one channel LED driver unit and is based on

aH−Bridge topology with a synchronous Buck switches and

asynchronous Boost with external low side NMOSFET and Schottky

diode. Supplying in a constant current mode a single LED string

between 2 and 20 LEDs.

This enables the design of a single PCB design solution or with

a separate module approach.

The LED string current is set with a current−encoding resistor. The

actual current through the LED string is sensed with a sense resistor.

Features

 Support for MCU Less Application

 Integrated Derating Mechanisms

 Fixed Switching Frequency at 400 kHz

 Input Operating Range from 5 V – 21 V

 Warm Start Management below 9 V

 Withstands Load Dump up to 45 V

 Output Voltage Range up to 60 V

 External Programmable Current 200 mA − 1500 mA

 Pulse Width Modulation from 80 Hz to 600 Hz

 LED Current Dimming Frequency 400 Hz

 External NTC / PTC for LED−temperature

 Spread Spectrum

 Status and Error Mode Handling

 AEC−Q100 Qualified and PPAP Capable

Figure 1. Typical Application Circuit

BAT

DIM

SW

PGND

LSSG

SNSP

SNSN

VDD

VDRV

RSV

ISET

TCS

AGND

VBOOT

VBAT

Input

EMC/EMI

Filter

Reverse

Polarity

Protection

Buck

Boost

Controller

PWM

Reconstruct

Device

Package

Shipping†

ORDERING INFORMATION

NCV78514PA0R2G

TSSOP16−EP

(Pb−Free)

4000 /

Tape & Reel

MARKING DIAGRAM

L514001= Specific Device Code

A

= Assembly Location

L

= Wafer Lot

YW

= Year & Work Week

G

= Pb−Free Indicator Microdot

TSSOP16−EP

CASE 948BV

18

16

9

L514

001

ALYWG

1

16

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

Typical Application

 Fog Lamp

 Cornering Light

 Logo Projection

 Logo Lighting