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FAN7535 -- PFC & Ballast Control IC
December 2007
FAN7535 PFC & Ballast Control IC
Features
PFC, Ballast Control, and Half-Bridge Driver in One IC PFC Driver Current Capability: +500mA/-800mA Critical Conduction Mode Control Type PFC Internal Clamping Zener Diode (PFC): 23V Under-Voltage Lockout with 3.5V of Hysteresis (PFC) Internal Clamping Zener Diode (Ballast): 15V Lower di/dt Gate Driver for Better Noise Immunity Under-Voltage Lockout with 1.8V Hysteresis (Ballast) Ballast Driver Current Capability: +350mA/-650mA Programmable Preheat Time & Frequency Programmable Run Frequency Programmable Ignition Sweep Time Internal Active ZVS Control Internal Protection Function (Latch Mode)
Description
FAN7535 provides simple, high-performance, active power factor correction (PFC), and ballast control. The FAN7535 is optimized for all kinds of fluorescent lamps, which require minimum board area and reduced external components. The FAN7535 PFC control block to reduce the input current THD lower than conventional CRM boost PFC methods. An innovative Active Zero Voltage Switching (AZVS) block reduces the swtiching power loss. A dedicated timing section in the FAN7535 allows the user set the necessary parameters for proper lamp preheat and ignition.
24-SOP
Applications
Fluorescent Lamp Ballast
Ordering Information
Part Number
FAN7535M FAN7535MX
Package
24-SOP
Operating Temperature Range
-25C ~ 125C
Packing Method
Tube Tape & Reel
All packages are lead free per JEDEC: J-STD-020B standard.
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
www.fairchildsemi.com
FAN7535 -- PFC & Ballast Control IC
Typical Application Diagrams
Figure 1. Typical Application Circuit for Fluorescent Lamp
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Internal Block Diagram
VDDB
1
10V REG VDD sense 15V SHUNT REGULATOR
HIGH-SIDE DRIVER VB
24
UVLO
VB HO VS
Reference
IPH =0.6*IRT
BIAS & SYSTEM LATCH
Noise Canceller
S R VS
Q Q
22 20
4V CPH
IRT
IPH
BGR CPH 3V 5V BIAS
UVLO
UVLO
SDH R S Q SHORT-PULSE GENERATOR Q SDL SET RESET LOW-SIDE GATE DRIVER
IPH*
IRT
RT
3
PRE-HEAT CTRL
0A IPH*
TSD
SYSHALT
CPH<3V Yes 1.6uA 9.6uA No
DEAD-TIME CTRL
VDDH/VDD LSH VDDH/VDD LSH
OSCILLATOR
SDL
DELAY SDH
18
LO
CPH
5
SDL 5V/3V
ADAPTIVE ZVS ENABLE LOGIC S SDH R Q Q RESET SYSHALT ADAPTIVE ZVS CONTROLLER TRANSITION SENSING
6
GND
VDDP
VDDP
17
-
2.5V Ref
Internal Bial + Driver Output
12V
8.5V
Disable
Timer
16
S Q
OVP +
OUT
ZCD
13
6.7V
+ Zero Current Detector
R
2.675V
Disable -
1.4V
1.5V
2.5V
CS
40k
12
8pF Zero Current 0.8V Comparator 2.9V Saw Tooth Generator Ramp signal 1V offset
0.45V
+ Vref + Error Amplifier Gm 1V~5V Range -
0.35V
MOT
10
7
INV
8
Comp
Figure 2. Functional Block Diagram (2chips-1PKG)
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Pin Configuration
24
23
22
21
20
19
18
VDDP 17
16
15
14
OUT
FAN7535
8 COMP 1 VDDB GND 10 MOT CPH INV NC NC NC NC 11 12 2 3 4 5 6 7 9 CS RT
Figure 3. Pin Configuration (Top View)
Pin Definitions
Pin #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Name
VDDB NC RT NC CPH GND INV COMP NC MOT NC CS ZCD NC NC OUT VDDP LO NC VS NC HO NC VB
Description
Supply voltage for ballast part No connection Oscillator frequency set resistor No connection Preheating time set capacitor Ground for ballast part & PFC part Inverting input of the error amplifier Output of the transconductance error amplifier No connection Set the slope of the internal ramp No connection Input of the over-current protection comparator Input of the zero current detection block No connection No connection Gate driver output Supply voltage for PFC block Low-side output No connection High-side floating supply return No connection High-side output No connection High-side floating supply
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
ZCD
HO
NC
NC
NC
NC
NC
LO
VB
VS
13
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FAN7535 -- PFC & Ballast Control IC
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. TA=25C, unless otherwise specified.
Symbol PFC PART
VDDP IOH, IOL lCLAMP lDET VIN VB VS VIN VCL ICL dVS/dt
Parameter
Supply Voltage Peak Drive Output Current Driver Output Clamping Diodes VO > VCC or VO < -0.3V Detector Clamping Diodes Error Amplifier, MOT, CS Input Voltages High-side Floating Supply High-side floating supply return RT, CPH Pins Input Voltage Clamping Voltage Clamping Current Level Allowable Offset Voltage Slew Rate
Min.
Typ.
Vz
Max.
Unit
V
-800 10 10 -0.3 -0.3 -0.3 -0.3 VCL 25
+500 mA 6.0 625.0 600.0 8.0 V V
BALLAST PART
mA 50 V/ns
Common
TOPR TSTG PD JA Operating Temperature Range Storage Temperature Range Total Power Dissipation Thermal Resistance (Junction-to-Air) -25 -65 1.5 83 +125 +150 C W C/W
Caution:
Do not supply a low-impedance voltage source to the internal clamping Zener diode between the GND and the VDDB and VDDP pins of this device. Use a common supply between the two ICs (PFC, Ballast) only under careful attention.
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Electrical Characteristics
VDDP=14V, TA = 25C, unless otherwise specified.
Symbol PFC PART(1)
Characteristics
Test Condition
Min.
Typ.
Max.
Unit
UNDER-VOLTAGE LOCKOUT SECTION
Vth(start) Vth(stop) HY(UVLO) Vz Start Threshold Voltage Stop Threshold Voltage UVLO Hysteresis Zener Voltage IDDP = 20mA VDDP = VTH(START) -0.2V Output not switching 50kHz, CL = 1nF VINV = 0V TA = 25C 14V VDDP 20V 1V Vinv 4V Vinv = Vref1-0.1V Vinv = Vref1+0.1V Vinv = Vref1-0.1V 5.4 0.9 90 RMOT = 40.5 RMOT = 40.5,TA = 25C 2.784 19 -0.5 -12 12 6.0 1.0 115 2.900 24 6.6 1.1 140 3.016 29 V mho V s 20 VDDP Increasing VDDP Decreasing 11 7.5 3.0 20 12 8.5 3.5 22 13 9.5 4.0 24 V
SUPPLY CURRENT SECTION
Ist IDDP IDDP(dyn) IDD(dis) Vref1 DVref1 DVref3(1) Ib(ea) Isource Isink Veao(H) Veao(Z) gm(2) VMOT TON-MAX Start-up Supply Current Operating Supply Current Dynamic Operating Supply Current Operating Current at Disable 40 1.5 2.5 65 70 3.0 4.0 95 mA mA mA
ERROR AMPLIFIER SECTION
Voltage Feedback Input Threshold1 Line Regulation Temperature Stability of VREF Input Bias Current Output Source Current Output Sink Current Output Upper Clamp Voltage Zero Duty Cycle Output Voltage Transconductance Maximum On-Time Voltage Maximum On-Time Programming 2.465 2.500 0.1 20 0.5 mA 2.535 10.0 V mV
MAXIMUM ON-TIME SECTION
CURRENT-SENSE SECTION
VCS(LIMIT) Ib(cs) Td(cs)(1) Current Sense Input Threshold Voltage Limit Input Bias Current Current Sense Delay to Output 0V VCS 1V 0.7 -1.0 0.8 -0.1 350 0.9 1.0 500 V mA ns
Notes: 1. Please refer to the FAN7529 datasheet and AN-6026 application note for more detailed information. Available on Fairchild's website at:
Datasheet: http://www.fairchildsemi.com/ds/FA%2FFAN7529.pdf Application Note: http://www.fairchildsemi.com/an/AN/AN-6026.pdf 2. This parameter, although guaranteed, is not 100% tested in production.
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Electrical Characteristics (Continued)
VDDP = 14V, TA = 25C, unless otherwise specified.
Symbol
Vth(ZCD)(3) HY(ZCD)
(3)
Characteristics
Input Voltage Threshold Detect Hysteresis Input High Clamp Voltage Input Low Clamp Voltage Input Bias Current
Test Condition
Min.
1.35 0.05
Typ.
1.50 0.10 6.7 0.65 -0.1
Max.
1.65 0.15 7.4 1.00 1.0 -10 10
Unit
ZERO CURRENT DETECT SECTION
Vclamp(h) Vclamp(l) Ib(ZCD) Isource(ZCD) Isink(ZCD) TDEAD(3) Voh Vol Tr(3) Tf(3) VO(MAX) VO(UVLO) td(rst) VOVP HY(OVP) Vth(en) HY(en)
(3) (3)
IDET = 3mA IDET = -3mA 1V VZCD 5V TA = 25C TA = 25C
6.0 0 -1.0
V
mA mA
Source Current Capability Sink Current Capability Maximum Delay, ZCD to Output Turn-on Output Voltage High Output Voltage Low Rising Time Falling Time Maximum Output Voltage Output Voltage with UVLO Activated Restart Time Delay OVP Threshold Voltage OVP Hysteresis Enable Threshold Voltage Enable Hysteresis
100 IO = -100mA, TA = 25C IO = 100mA, TA = 25C CI = 1nF CI = 1nF VDDP = 20V, IO = 100mA VDDP = 5V, IO = 100mA 50 TA = 25C TA = 25C 150 11.5 9.2 11.0 1.0 50 50 13.0
200 12.8 2.5 100 100 14.5 1 300 2.730 0.230 0.50 0.15
OUTPUT SECTION
V ns V
RESTART TIMER SECTION
ms
OVER-VOLTAGE PROTECTION SECTION
2.620 2.675 0.120 0.175 0.40 0.05 0.45 0.10 V
ENABLE SECTION
V
Note:
3. These parameters, although guaranteed, are not 100% tested in production.
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Electrical Characteristics (Continued)
VBIAS (VDDB, VBS) = 14.0V, TA = 25C, unless otherwise specified.
Symbol
BALLAST PART
(4)
Characteristics
Condition
Min. Typ. Max. Unit
Supply Voltage Section
VDDTH(ST+) VDDB UVLO Positive Going Threshold VDDTH(ST-) VDDB UVLO Negative Going Threshold VDDHY(ST) VCL IST IDDB(dyn) VDDB-side UVLO Hysteresis Supply Clamping Voltage Start-up Supply Current Dynamic Operating Supply Current High-side UVLO Positive Going Threshold High-side UVLO Negative Going Threshold High-side UVLO Hysteresis High-side Quiescent Supply Current High-side Dynamic Operating Supply Current Offset Supply Leakage Current CPH Pin Preheating Voltage Range CPH Pin Charging Current During Preheating VCPH = 1V VBS = 14V 50kHz, CL = 1nF VB = VS = 600V 2.5 1.25 8 72 48.2 3.0 2.00 12 7.0 85 53.0 3.1 1.0 98 57.8 IDDB = 10mA VDDB = 12V 50kHz, CL = 1nF 14.8 VDDB Increasing VDDB Decreasing 12.4 10.8 13.4 11.6 1.8 15.2 150 3.2 A mA 14.4 12.4 V
High-Side Supply Section (VB-VS)
VHSTH(ST+) VHSTH(ST-) VHSHY(ST) IHST IHD ILK VMPH IPH IIG VMO fPRE fOSC DTMAX DTMIN VBS Increasing VBS Decreasing 8.5 7.9 9.2 8.6 0.6 50 1 45 3.5 2.85 16 V kHz kHz s s A mA A V A 10.0 9.5 V
Oscillator Section
CPH Pin Charging Current During Ignition VCPH = 4V CPH Pin Voltage Level at Running Mode Preheating Frequency Running Frequency Maximum Dead Time Minimum Dead Time RT = 80k, VCPH = 2V RT = 80k VCPH = 1V, VS = GND in Preheat Mode VCPH = 6V, VS = GND in Run Mode PW = 10s PW = 10s PW = 10s PW = 10s CL = 1nF, VBS = 15V CL = 1nF, VBS = 15V CL = 1nF, VBS = 15V CL = 1nF, VBS = 15V
Output Section
IOH+ IOHIOL+ IOLtHOR tHOL tLOR tLOL VS(5) High-side Driver Sourcing Current High-side Driver Sinking Current Low-side Driver Sourcing Current Low-side Driver Sink Current High-side Driver Turn-on Rising Time High-side Driver Turn-off Rising Time Low-side Driver Turn-on Rising Time Low-side Driver Turn-off Rising Time Maximum Negative VS Swing Range for Signal Propagation to High-side Output 250 500 250 500 350 650 350 650 45 25 45 25 -9.8 V ns mA
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Electrical Characteristics (Continued)
VBIAS (VDDB, VBS) = 14.0V, TA = 25C, unless otherwise specified.
Symbol
Protection Section
VCPHSD ISD TSD
(5)
Characteristics
Shutdown Voltage Shutdown Current Thermal Shutdown
Condition
Min. Typ. Max. Unit
2.6 250 165 450 V A C
VRT = 0 After Run Mode
Notes: 4. Please refer to the FAN7711 datasheet for more detailed information. Available on Fairchild's website at: Datasheet: http://www.fairchildsemi.com/ds/FA%2FFAN7711.pdf
5. This parameter, although guaranteed, is not 100% tested in production.
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Component List for 32W Two Lamps
Part
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R50 R51 R52 R53 R54 R55 R56 R57 R58 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C50 C51 C52 C53 C54
Value
Resistor
330k 750k 100 20k 47 10k 50k 47k 0.3 1M 1M 12.6k 220k 150k 150k 150k 90k 10 47 47k 47 47k
Note
1/2W 1/4W 1/2W 1/4W 1/4W 1/4W 1/4W 1/4W 1W 1/4W 1/4W 1/4W,1% 2W 1/4W 1/4W 1/4W 1/4W,1% 1/4W 1/4W 1/4W 1/4W 1/4W Box Capacitor Box Capacitor Ceramic Capacitor Ceramic Capacitor Miller Capacitor Ceramic Capacitor Electrolytic Capacitor Ceramic Capacitor Ceramic Capacitor Ceramic Capacitor Electrolytic Capacitor Electrolytic Capacitor Ceramic Capacitor Ceramic Capacitor, 5% Ceramic Capacitor Ceramic Capacitor
Part
C55 C56 C57 C58 D1 D2 D3 D4 D5 D6 D7 D8 D50 D51 D52 ZD1 M1 M2 M3 Fuse TNR
Value
15nF/630V 2.7nF/1kV 15nF/630V 2.7nF/1kV
Note
Miller Capacitor Miller Capacitor Miller Capacitor Miller Capacitor 1kV,1A 1kV,1A 1kV,1A 1kV,1A Ultra Fast,1kV,1A Ultra Fast,1kV,1A 100V,1A 100V,1A Ultra Fast,1kV,1A Ultra Fast,1kV,1A Ultra Fast,1kV,1A Zener 18V, 1W 500V,6A 500V,5A 500V,5A
Diode
1N4007 1N4007 1N4007 1N4007 UF4007 UF4007 1N4148 1N4148 UF4007 UF4007 UF4007 IN4746A
MOSFET
FQPF5N60C FQPF5N50C FQPF5N50C
Fuse
3A/250V
Capacitor
47nF/275VAC 150nF/275VAC 2200pF/3kV 2200pF/3kV 0.22F/630V 12nF/50V 22F/50V 39pF/50V 1F/50V 0.1F/50V 47F/450V 10F/50V 1F/50V 0.47F/25V 100nF/50V 470pF/1kV 471
TNR
NTC
NTC LF1 L1 L2 L3 U1 10D-09
Line Filter
40mH
Transformer
0.94mH (75T:10T) EI2820 EI2820 EI2820 Fairchild Semiconductor
Inductor
3.2mH (130T) 3.2mH (130T)
IC
FAN7535
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
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FAN7535 -- PFC & Ballast Control IC
Package Dimensions
15.400.20 13.970 24 B 13
A
14.52
7.500.10 10.325 10.95 9.2
PIN ONE INDICATOR
1
0.51 0.35 0.25
12 1.27
M
CBA
1.75 TYP
0.55 TYP 1.27 TYP LAND PATTERN RECOMMENDATION
2.65 MAX
SEE DETAIL A
C 0.10 C 0.200.10
0.75 0.25
0.33 0.20
SEATING PLANE
X 45
NOTES: UNLESS OTHERWISE SPECIFIED
(R0.10) GAGE PLANE 0.25
(R0.10) 8 0
A) THIS PACKAGE CONFORMS TO JEDEC MS-013, ISSUE E, DATED SEPT 2005. B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS DO NOT INCLUDE MOLD FLASH OR BURRS. D) LANDPATERN STANDARD: SOIC127P1030X265-24L E) DRAWING FILENAME: MKT-M24BREV2
0.40~1.27 (1.40)
SEATING PLANE
DETAIL A
SCALE: 2:1
M24BREV2
Figure 4. 24-Lead Small Outline Package (SOP)
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor's online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
www.fairchildsemi.com 11
FAN7535 -- PFC & Ballast Control IC
(c) 2007 Fairchild Semiconductor Corporation FAN7535 Rev. 1.0.0
www.fairchildsemi.com 12

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