Ballast Controller + 2MOSFET - FAN7710
Post on 04-Jan-2016
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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
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