Power LED Portfolio

0 • Template • Nov-09 Confidential ProprietaryON Semiconductor Confidential

Confidential Copy

LED Front lighting solutions

1 • Template • Nov-09 Confidential Proprietary

ON Semiconductor Confidential

Power LED front lighting

System-on-chip

ON Semi Automotive LED driver overviewLinear

Regulators

Linear &Switched

Mode Regulators

CHMSL

Rear Combination Lamps(Turn Signals, Tail Light, Brake Light)

Side Repeaters

Backlighting

Interior Lighting

Rear Combination Lamps (light guides)

Front lighting (1st generation)

Atmosphere Lighting

Front lighting (High beam, Low beam, DRL, Position light, Turn Indicator, Fog, Static Cornering, Side marker,…)

AFS

O N S o l u t i o n sNUD4001 500mA/30V LED driver

NUD4011 70mA/200V LED driver

NSI45xxx 10mA–160mA / 45V CCR(*)

(*) CCR = Constant Current Regulator

T y p i c a l A p p l i c a t i o n s

A p p l i c a t i o n C h a r a c t e r i s t i c sLow current LED’s

Low total power

85dC ambient

Low system Integration

Power LED’s

Medium to high total power

Up-to 125dC ambient


Power LED’s


Up-to 125dC ambient

System-on-chip

NCV7680 RCL, DRL (Daytime Running Lights) CHMSL (Center High Mounted Stop Lamps)

NCV3065/6 1.5 A Constant Current Switching Regulator for LEDs w/ enable

NCV786XX product line

See further in this presentation

http://www.onsemi.com/PowerSolutions/product.do?id=NUD4001DR2

http://www.onsemi.com/PowerSolutions/product.do?id=NUD4011DR2G

http://www.onsemi.com/PowerSolutions/parametrics.do?id=197

http://www.onsemi.com/PowerSolutions/product.do?id=NCV3065PG




ON Semi Automotive LED driver overviewLinear

Regulators

CHMSL

Rear Combination Lamps(Turn Signals, Tail Light, Brake Light)

Side Repeaters

Backlighting



NSI45xxx 10mA–160mA / 45V CCR(*)

(*) CCR = Constant Current Regulator

Low current LED’s

Low total power

85dC ambient


http://www.onsemi.com/PowerSolutions/product.do?id=NUD4001DR2

http://www.onsemi.com/PowerSolutions/product.do?id=NUD4011DR2G

http://www.onsemi.com/PowerSolutions/parametrics.do?id=197



Lowest cost

High current at high voltage

Lowest efficiency

Requires LED binning

LED Thermal runaway

Price - $0.01

CCRs positioned to winSwitching Regulators

PWM

L

C

Vin

RRset

Linear Regulator IC

Resistors

Vin

R

Vin

R

Rset

Vin

R

Set Point

Vin

Rset

High efficiency

Application specific

sockets

Highest cost

High EMI

Price $0.50 - $2.00

Current regulation ±2% ($0.20)

Multi channel

Self protecting ($0.20)

Low efficiency (Linear)

Medium cost

Price $0.04 - $1.00Wide voltage range

Current regulation ±10%

- Roadmap to ±5%

Protects LEDs

Low cost

Low efficiency (Linear)

Price - $0.03 to $0.20

CCR



CCR – Value PropositionCCR vs. Resistor

0

5

10

15

20

25

30

35

40

45

50

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Run V

LE

D m

A

I-ccr

I-res

Brighter at low voltage

Regulator ΔI/ΔV (mA/V) -0.06

Resistor ΔI/ΔV (mA/V) 3.57

Constant brightness over

Critical Operating Region

CCR

Vin

Ireg

± 15% or

±10% ILED

± 50%

ILED

Protection at High Voltage

Features Benefits

Regulated current • Constant brightness over wide voltage range

• Protects LEDs from over drive at higher input voltage

• Brighter LEDs at lower input voltage

• Reduces or eliminates LED binning inventory

• Lower overall solution cost

45V max operating voltage • Withstands battery load dump

Power packages (SOD123/SOT223/DPAK) • Operates in harsh thermal environment (85oC still air)

Negative temperature coefficient • Protects devices & LED

Simple design/NO EMI generation • Less complexity



Under Hood & Inside Trunk

Lighting

Reading, Map and Task Lighting

CCR in Automotive Lighting

Rear View Lighting

Dome & Door Puddle Lighting

RCL &

Side

Markers

Emergency Vehicle

CHMSL

Console Backlight

Daylight Running Light (DRL)

Blind Spot indicator

System designers facing

space constraints.

Automotive applications

operate in high temperature

environments.

Applications increasing in density -

requires smaller & more thermally

efficient packages

Number Plate

http://images.google.com/imgres?imgurl=www.truckworld.com/Truck-Tests/Toyota-Tundra/toyota9.jpg&imgrefurl=http://www.truckworld.com/Truck-Tests/Toyota-Tundra/tundra2.html&h=258&w=325&prev=/images?q=passenger+compartment&start=40&svnum=10&hl=en&lr=&ie=UTF-8&oe=UTF-8&safe=off&sa=N



CCR - Product RoadmapL

ow

Cu

rre

nt

2010

Duals/Triple/Quads CCRs

10-30mA Tighter Tolerance

TSOP6, SO-8

CCR 30 – 160 mA

±5%, +50V

SOT223 / DPAK

7 Devices

PWM Enable CCR

±10%, 45V, 20 & 30 mA

SC-74 MOD LF

2 Devices

PWM Enable CCR

±10%, 45V, 20 & 30 mA

SOT-223/SO8FL

2 Devices

1H11 2H11 1H12 2H12 1H13 2H13

Production

Development

Definition

Exploring

Hig

h C

urr

en

t

Bridge integrated CCR

20-30 mA, 50V

SO8FL, SOT-223

2 DevicesPWM Enable CCR Arrays

10-30 mA, ±5%

CCR 350 mA

±10%, 50V

SMC/DPAK

2 DevicesCCR 160 mA

±10%, 50V

SMB

3 Devices

Auto

Channel, Auto Lighting

AC Lighting

Display

Backlight

CCR 50 mA

±10%, 50V

SMA

3 Devices

CCR with Rext 90-160mA

±15%, 45V, Auto (AEC)

DPAK


±15%, 45V, Auto (AEC)

DPAK


±15%, 45V, Auto (AEC)

SOT-223


±15%, 45V, Auto (AEC)

SOT-223



ON Semi Automotive LED driver overview

Interior Lighting

Rear Combination Lamps (light guides)

Front lighting (1st generation)

Atmosphere Lighting

A p p l i c a t i o n C h a r a c t e r i s t i c sPower LED’s


Up-to 125dC ambient


NCV7680 RCL, DRL (Daytime Running Lights) CHMSL (Center High Mounted Stop Lamps)

NCV3065/6 1.5 A Constant Current Switching Regulator for LEDs w/ enable

Linear &Switched

Mode Regulators





NCV7680 Typical Application

The part is

designed to run at

35mA per string

(typ).



Paralleling outputs

OUT1

NCV7680

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

VP

GND

RTAIL

RSTOP

DIAG

STOP

FB

Ballast Drive

C3

1uFC1

0.1uF

MRA4003T3G

NTD2955

R3

1K

R1

10K

C4

10nF

R4, 1.4K

R6

8.87K

R7

1K

C2

0.1uF

LED Switch

LED Module

All 8 outputs are tied

together and driven at

maximum current.

The maximum current

per string is 75mA.

This yields 600mA total

in the output.



Daytime Running Light with NCV7680



NCV3065– Constant Current Buck Regulator for LEDs

The NCP3065 is a switching regulator designed to deliver constant current to LEDs. Hysteretic control with an

external resistor allows the converter output voltage to adjust as needed to deliver a constant current to series and

series-parallel connected arrays of LEDs of varying number and type.

Unique Features Benefits

Others Features

•Integrated 1.5A switch

•Wide Vin from 3 to 40V

•0.2V Voltage Reference

Value Proposition

•High current output

•Allows use in many

versatile applications

•Low power sense resistor

•1.5 A peak current

•Ability to add external transistor to increase output

current up to 5 A

•2% accurate internal reference

Market & Applications

•Consumer Electronics: LCD backlighting

•Automotive: Interior lighting, Infotainment

•Industrial: Industrial lighting, general illumination

Typical Application Diagram & Package Info

Ordering Info & Support

• PDIP-8, SOIC-8, DFN-8

• NCP3065: -40 to +125°C

• NCV3065 - Automotive Grade

NCP3065

NC

IPK

VCC

Comp

SWC

SWE

TC

GND

Vth = 0.2V

No Loop Compensation

Required

Small Sense Resistor (0.7)

For Higher Efficiency

Low Voltage

Reference



Constant Current Buck Regulator for LED

Low voltage AC or DC power supply

Configurable output LED current

Dimming capability



NCP3065 as Boost Regulator for LED

AND8289 discusses

boost LED Driver Circuits

Optional

Open LED

protection

Optional

Dimming

Control

Demo Board



NCP3065 as a Controller

• The NCP3065 can also be used as a controller

– Boost: Higher output voltage and/or current is desired

=> e.g: DRL Application.

– Buck: Higher output current is desired

– Increased efficiency is desired

Boost example with 100V External N-FET



Power LED front lighting

System-on-chip

ON Semi Automotive LED driver overview

Front lighting (High beam, Low beam, DRL, Position light, Turn Indicator, Fog, Static Cornering, Side marker,…)

AFS

A p p l i c a t i o n C h a r a c t e r i s t i c s

Power LED’s


Up-to 125dC ambient

System-on-chip

NCV786XX product line

See further in this presentation



Application diagram

VBB

VGATE

1A

LEDCTRL1

Optional temp sensing

LED-string 1

SPI_SCLK

SPI_SDI

SPI_SDO

SPI_SCS

T

IBS

TS

EN

SE

-

IBS

TS

EN

SE

+

GND GNDP

LBCKSW1

VTEMP1

VLED1

LEDCTRL2

DIAG1

DIAG2

ON-Semi

Buck-Boost

LED driver

NCV_78663

Optional

μC

CAN

Or

LIN

L_boost

FET_boost

C_boost_IN

C_boost_OUT

1A

Optional temp sensing

LED-string 2

T

LBCKSW2

VTEMP2

VLED2

IBCK2SENSE-

IBCK2SENSE+

LBCKSW1

IBCK1SENSE-

IBCK1SENSE+

L_buck_1

L_buck_2

C_buck_1

C_buck_2

R_buck_1_sense

R_buck_2_sense

R_boost_sense

VINBCK1

VINBCK2V

BO

OS

T

TST1 TST2

Light ECU

Configuration examples for 2 LED string solution

Configuration A:

Low-beam Typical 55V / 0,7A (= 38,5W)

High-beam Typical 55V / 0,7A (= 38,5W)

Configuration B:

DRL/Position light function Typical 16V / 0,35A (= 5,6W)

Turn indicator Typical 20V / 0,7A (= 14W)

Configuration C:

Fog light Typical 18,5V / 0,7A (= 13W)

Static cornering light Typical 18,5V / 0,7A (= 13W)



Power LED Driver Roadmap

Production Development Planning Exploring

NCV78663

PWR LED Bst/2Bck 0,7A/60V

1 x Boost – ext sw.

2 x Buck – int sw. 1,2A

SPI

(*)NCV78662

PWR LED Bst/2Bck 0,35A/60V



SPI

(*) Part numbers to be confirmed

(*)NCV78653

PWR LED Bst/Bck 1,5A/60V



SPI

(*)NCV78652

PWR LED Bst/Bck 0,35A/60V



SPI

(*)NCV78622

PWR LED 2Bck 0,35A/60V


SPI

Fu

ncti

on

ali

ty

Full integrated

solution for

2 LED strings

Full integrated

solution for

1 LED string

Extension for

2 LED strings

Time

Proto eval. kit: 2010-CW17

Proto samples: 2010-CW20

Final proto: 2010-CW44

Final silicon: 2011-Q1

PPAP: 2011-Q2-end



VBB VGATE

1A

Digital

Control

OTP

LEDCTRL1

Op

tio

na

l te

mp

se

nsin

g

LE

D-s

trin

g

I_S

en

se

I_S

en

se

2 X

SPI

SC

LK

SD

I

SD

O

SC

S

T

100nFV

BS

TS

EN

SE

+

VB

ST

SE

NS

E-

GND GNDP

IBC

KxS

EN

SE

-

IBC

KxS

EN

SE

+

VINBCKx

LBCKSWx

VT

EM

Px

VL

ED

x

LEDCTRL2

DIAG1

DIAG2

Optional

μC

CAN

Or

LIN

Some details on Application Diagram & Externals

Power supply (VBAT) & Dimming control

External control units (optional)

Input filter

Booster power components Boost shunt resistor (input current limitation)

LED Sense resistor (color temp regulation)

HIGH SIDE CURRENT SWITCH for higher fault tolerance

Buck power components

Output capacitors (EMC)

LED string

Integrated boost controller (with EMC filtering algorithm)

Integrated buck regulators(with dimming and

automatic power deratingcapability)

Parameter settings

Digital communication interface

Diagnostics feedback for LED strings



NCV78863 DEMO KIT: OVERVIEW

NCV78663 DEMO BOARD

ECUSIM MKII (SPI)

60W power supply

CABLING

LED MODULES (OSRAM)

NCV78663 DAUGHTERBOARD

20 • Template • Nov-09 Confidential ProprietaryON Semiconductor Confidential

Confidential Copy

END OF PRESENTATION

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Power LED Portfolio