Ballast Controller + 2MOSFET - FAN7710

Ballast Controller + 2MOSFET - FAN7710Development ScheduleDevelopment Schedule

- FAN7710 is an electronic ballast control IC which can drive CFL lamp directly.

FeaturesFeatures

- Highly Integrated Power System-On a Package - On-chip Oscillator, No external Capacitor required- Active Dead-time Control for low EMI application- Open Lamp Detection without Sensing Circuitry- Longer Lamp Lift-time with Pre-heating control- 8DIP package

ApplicationsApplications

-Electric CFL Ballast

TechnicalTechnicalAnalysisAnalysis

Key Application Electric CFL Ballast

Competitors IR2520D, UBA2024

Package 8SOP/DIP

BLOCK DIAGRAMBLOCK DIAGRAM DescriptionDescription

Code DCode D

Start ER Sample Final Sample Code S2006-03-XX

3V 5V

CPH

IPHIPH

*

IRT

IPH=0.6*IRT

0A

4V

IPH

*

OSCILLATOR

CPH

DEAD-TIME CTRL

5V/3V

S

R

Q

QSDL SDH RESET

SYSHALT

ADAPTIVE ZVS ENABLE LOGIC

VDDH/VDD LSH

VDDH/VDD LSH

SDLSDH

NoiseCanceller

S

R

Q

Q

UVLO

VS

VB

SET

RESET

DEALY

SH

OR

T-P

UL

SE

GE

NE

RA

TO

R

15V SHUNTREGULATOR

RT

CPH

VDD

PGND

OUT

VB

VDC

IRT

LOW-SIDE GATE DRIVER

PRE-HEAT CTRL

HIGH-SIDE DRIVER

UVLO

S

R Q

Q

TSDBIAS

BGR

SYSHALT

UVLO SDH

SDL

10V REG

Re

fere

nc

e

VD

D s

en

se

CPH<3V

Yes

No

1.6uA

9.6uA

TRANSITIONSENSING

ADAPTIVE ZVS CONTROLLER

BIAS & SYSTEM LATCH

FAN7710

SGND

FAN7710 Configuration

High-Side Gate Driver+dv/dt noise cancelleration circuit

+UVLO+Shoot-through prevented output bufferRunning frequency control using a resistor

Preheating/Ignition time controlAnd

Dead-time control loop stabilizerUsing a capacitor

Adaptive ZVS controllerAnd

Open Lamp DetectionWithout any external devices

3V 5V

CPH

IPHIPH

*

IRT

IPH=0.6*IRT

0A

4V

IPH

*

OSCILLATOR

CPH

DEAD-TIME CTRL

5V/3V

S

R

Q

QSDL SDH RESET

SYSHALT

ADAPTIVE ZVS ENABLE LOGIC

VDDH/VDD LSH

VDDH/VDD LSH

SDLSDH

NoiseCanceller

S

R

Q

Q

UVLO

VS

VB

SET

RESET

DEALY

SH

OR

T-P

UL

SE

GE

NE

RA

TO

R

15V SHUNTREGULATOR

2

3

1 8

5

RT

CPH

VDD

PGND

OUT

VB

VDC

IRT

LOW-SIDE GATE DRIVER

PRE-HEAT CTRL

HIGH-SIDE DRIVER

UVLO

S

R Q

Q

TSDBIAS

BGR

SYSHALT

UVLO SDH

SDL

10V REG

Re

feren

ce

VD

D s

en

se

CPH<3V

Yes

No

1.6uA

9.6uA

ADAPTIVE ZVS CONTROLLER

7

6

BIAS & SYSTEM LATCH

FAN77104

SGND

OUTPUTTRANSITION

SENSING

550V power MOSFETs(drive up to 20W lamp)

Ballast Controller + 2MOSFET - FAN7710Code DCode D

Application CircuitApplication Circuit

VDC

VB

OUT

PGND

VDD

ROSC

CPH

SGND

1

2

3

4 5

6

7

8

VDC(up to 400V)

RSTART

ROSC

CPH

CFL

CS

UP

DC1

DC

2 CP

CB LS Cs Cp

DBDZ

FAN7710

FAN7710 ER sample test results (Con’t)

Test Evaluation Board

VDC

VB

OUT

PGND

VDD

RT

CPH

SGND

1

2

3

4 5

6

7

8

Rst

RT

CPH

CFLDB

CBS

LS Cs Cp

F1

CX1

LF

D1 D2

D3 D4

C1

DC1

R5

C2 DC2CB

R1

R2

R3

D5

FAN7710

Part Number Value Note RemarkFuse 250V/1A

LF 1mH Axial typeCX1 104/400V

D1,D2,D3,D4 1N4007C1 400V,10uF 105R1 None connectR2 None connectR3 None connectD5 1N4148 None connect

Rst 390kΩ 1/4WR5 10Ω 1/4WRT 82k 1/4W SMD 1206

CPH 470nF 25V SMD 1206CBS 100nF 25V SMD 1206

DC1,DC2,DB UF4007CB 221 1kVLs 2.5mH (Min) EE1616S 170TCs 333/400VCp 332/400VU1 FAN7710 Fairchild

FAN7710 ER sample test results (Con’t)

High Temperature Test (Chamber Temp.=120OC)

220V AC Power

20W CFL (Compact Fluorescent Lamp) PCB

FAN7710 ER Sample (8DIP)

Socket

Chamber Temperature Recorder

Tem.ambient [] Tem. IC PKG []Tem. Rectifiercapaciter[]

Tem. Lampinterier[]

35 82 63.4 47

50 90.4 71.4 55.8

60 99 79.5 65

70 108.7 88.4 74.7

80 118.8 97.5 84.4

90 127.3 106.7 94.1

100 136.3 115.8 103.7

110 142.9 125.1 113

120 152 134.6 122.7

130 160.1 142.2 130.9

140 167(SD)

主要技术指标FAN7532 L6574 IR2156 FAN7710 FAN7711

Programmable Preheat Time O O O O O

Programmable Preheat Frequency

O O O O O

Programmable Run Frequency O O O O O

Protection (OLP, OVP) O O O Automatic Automatic

Dimmable OP Amp X O X X X

Operating Frequency50KHz (+-4%)

X Rt,Ct Var.

60KHz (+-3%)

X Rt,Ct Var.

100KHz (+-6%)

X Rt,Ct Var.

50KHz (+-4%)

X Rt Var.

50KHz (+-4%)

X Rt Var.

Internal Boot Strap Diode X O X X X

Internal H/B Switchs X X X O X

Start-up current (Max) 120uA 250uA(Max) 120uA 91.8uA 91.8uA

Operating Temperature -40°C ~ +125°C-25°C ~ +125°C

-25°C ~ +125°C

-25°C ~ +125°C -25°C ~ +125°C

Output Current (Sink/Source) 250/500mA 250/450mA 500/500mA800mA

(Isat.(Switch))350/650mA

Lamp Power Over 120W Over 120W Over 120W Up to 20W Over 120W

Package 16SOP 16SOP/DIP 14SOP/DIP 8DIP 8SOP/DIP

美国飞兆半导体指定代理

• 香港汇贤电子有限公司（珠海办事处）• 刘金辉（销售经理）• 珠海市南屏科技园屏东五路六号 B栋四楼• 电话： 0756-3899018

• 传真： 0756-3898388

• E-mail:[email protected]

• http://www.chinanete.com