View FAN7387V_4817601.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
July 2009
FAN7387V Ballast Control IC for Compact Fluorescent Lamp
Features
Integrated Half-Bridge MOSFET Internal Clock Using RCT Enable External Sync Function Using RCT Dead-Time Control by using Resistor Shut Down (Disable Mode) Internal Shunt Regulator UVLO Function High and Low Side
Description
The FAN7387V, developed using Fairchild's unique high-voltage process and system-in-package (SiP) concept, is a ballast-control integrated circuit (IC) for a compact fluorescent lamp (CFL). The FAN7387V has a simple oscillating circuit using an external resistor and capacitor so the frequency variation is stable across the temperature range. FAN7387V has a external pin for dead time control and shutdown. By using this resistor, a designer can choose the optimum dead time to reduce the power loss on internal switching devices (MOSFETs).
Applications
Compact Fluorescent Lamp Ballast 8-DIP
Ordering Information
Part Number
FAN7387VN
Operating Temperature
-40 to +125C
Eco Status
RoHS
Package
8-Lead, Dual-In-line Package (DIP)
Packing Method
Tube
For Fairchild's definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Typical Applications Diagrams
Figure 1. Typical Application Circuit for Fluorescent Lamp (Rapid Starting Method without PTC)
Figure 2. Typical Application Circuit for Fluorescent Lamp (Rapid Starting Method with PTC)
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 2
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Internal Block Diagram
HIGH- SIDE DRIVER
VB UVLO
UVLO
Noise Canceller
S R Q Q
SQ R DQ Q
Internal CLK
( Frequency Divider )
SET RESET
External Sync VDD
Logic Detection Level
IN
HIN
DT SHUTDOWN Always LIN First HIN LIN
LIN
DELAY
LOW- SIDE GATE DRIVER
Figure 3.
Functional Block Diagram
Pin Configuration
OUT PGND GND DT/SD
8
7
6
5
FAN7387V
YWW
( YWW : Work Week Code)
1
Figure 4.
2
3
4
RCT
VDC VB VDD
Pin Configurations (Top View)
Pin Definitions
Pin #
1 2 3 4 5 6 7 8
Name
VDC VB VDD RCT DT/SD GND PGND OUT High-voltage Supply High-Side Floating Supply Supply Voltage
Description
Oscillator Frequency Set Resistor and Capacitor Dead Time Set Resistor Signal Ground Power Ground High-Side Floating Supply Return
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 3
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
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
VB VOUT VRCT ICL dVOUT/dt TA TSTG PD JA
Parameter
High-Side Floating Supply High-Side Floating Supply Return RCT Pins Input Voltage Clamping Current Level
(1)
Min.
-0.3 -0.3
Typ.
Max.
465.0 440.0
Unit
V V V
VDD 25 50 -40 -65 2.1 70 +125 +150
mA V/ns C C W C/W
Allowable Offset Voltage Slew Rate Operating Temperature Range Storage Temperature Range Power Dissipation Thermal Resistance (Junction-to-Air)
Note: 1. Do not supply a low-impedance voltage source to the internal clamping Zener diode between the GND and the VDD pin of this device.
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 4
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Electrical Characteristics
VBIAS (VDD, VB -VOUT)=14.0V, TA=25C, unless otherwise specified.
Symbol
VDC
Parameter
High Voltage Supply Voltage
Test Conditions
Min.
440
Typ.
Max.
Unit
V
High Voltage Supply Section
Low-Side Supply Characteristics (VDD) VDDUV+ VDD UVLO Positive-Going Threshold VDDUVVCL IST IQDD IDD VHSUV+ VHSUVVHSUHY IQHS IPBS fosc D VRCT+ VRCTVIH VIL tD tDMIN VSD+ VSDISD tSD VDD UVLO Negative-Going Threshold Supply Camping Voltage Startup Supply Current Low-Side Quiescent Supply Current Dynamic Operating Supply Current High-Side UVLO Positive-Going Threshold High-Side UVLO Negative-Going Threshold VBS Supply UVLO Hysteresis High-Side Quiescent Supply Current High-Side Dynamic Operating Supply Current Oscillation Frequency Duty Cycle Upper Threshold Voltage of RCT Lower Threshold Voltage of RCT Logic "1" Input Voltage of RCT Logic "0" Input Voltage of RCT Dead Time Minimum Dead Time Shutdown "1" Input Voltage Shutdown "0" Input Voltage Shutdown Current Shutdown Propagation Delay VSD/DT=0 After Run Mode 180 20kHz, CL=1nF RT=50k, CT=330pF Running Mode Running Mode Running Mode Running Mode Running Mode RDT=100k VDT/SD=VDD 440 280 2.5 1 350 540 400 18 47.5 VDDUHY VDD-Side UVLO Hysteresis IDD=10mA VDD=9V RDT=100k 20kHz, CL=1nF VB-VOUT Increasing VB-VOUT Decreasing 8 7.5 14.4 VDD Increasing VDD Decreasing 9 7.8 11 8.8 2.2 15.4 60 230 0.6 9 8.5 0.5 50 130 20 49.0 VDD VDD/4 3/4 VDD 3/5 VDD 640 520 ns V 90 180 22 A 10 9.5 V 90 380 A mA 13 9.8 V
High-Side Supply Characteristics (VB-VOUT)
Oscillator Characteristics kHz %
Protection Characteristics V A Ns
Internal MOSFET Section ILKMOS RON IS ISM VSD Internal MOSFET Leakage Current Static Drain-Source On-Resistance Maximum Continuous Drain-Source Diode Forward Current Maximum Pulsed Continuous Drain-Source Diode Forward Current Drain-Source Diode Forward Voltage VGS=0V, IS=0.38A VDS=400V VGS=10V, ID=190mA 4.6 0.38 3.04 1.2 50 6.0 A A A V
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 5
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Typical Performance Characteristics
200
12.5 12.0
150
VDDUV+ [V]
IST [ A]
11.5 11.0 10.5
100
50
10.0
0 -40
-20
0
20
40
60
80
100
120
9.5 -40
-20
0
20
40
60
80
100
120
Temperature [C]
Temperature [C]
Figure 5. Startup Current vs. Temperature
Figure 6. VDD UVLO+ vs. Temperature
10.5 10.0
10.0 9.6 9.2
VBSUV+ [V]
-20 0 20 40 60 80 100 120
VDDUV- [V]
9.5 9.0 8.5 8.0 7.5 -40
8.8 8.4 8.0 7.6 7.2 -40 -20 0 20 40 60 80 100 120
Temperature [C]
Temperature [C]
Figure 7. VDD UVLO- vs. Temperature
Figure 8. VB-VOUT UVLO+ vs. Temperature
10.0 9.6 9.2
16.0 15.8
VBSUV- [V]
8.8 8.4 8.0 7.6 7.2 -40 -20 0 20 40 60 80 100 120
VCL [V]
15.6 15.4 15.2 15.0 14.8 -40
-20
0
20
40
60
80
100
120
Temperature [C]
Temperature [C]
Figure 9. VB-VOUT UVLO- vs. Temperature
Figure 10. VCL vs. Temperature
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 6
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Typical Performance Characteristics (Continued)
2.5 2.0
500 400
IPDD [mA]
1.5 1.0 0.5 0.0 -40
IQDD [ A]
-20 0 20 40 60 80 100 120
300 200 100 0 -40
Temperature [C]
-20
0
20
40
60
80
100
120
Temperature [C]
Figure 11. IPDD vs. Temperature
Figure 12. IQDD vs. Temperature
500 400
3.0 2.5
ISD [ A]
300 200 100 0 -40
VSD+ [V]
2.0 1.5 1.0 0.5 0.0 -40
-20
0
20
40
60
80
100
120
-20
0
20
40
60
80
100
120
Temperature [C]
Temperature [C]
Figure 13. ISD vs. Temperature
Figure 14. VSD+ vs. Temperature
3.0
23
22
2.5
VSD- [V]
2.0
fOSC1[kHz]
21
20
19
1.5
18
1.0 -40
-20
0
20
40
60
80
100
120
17 -40
-20
0
20
40
60
80
100
120
Temperature [C]
Temperature [C]
Figure 15. VSD- vs. Temperature
Figure 16. Operating Frequency vs. Temperature
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 7
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Typical Performance Characteristics (Continued)
500 475
50
40
425 400 375 350
tDMIN_mismatch[ns]
-20 0 20 40 60 80 100 120
450
tDMIN[ns]
30
20
10
325 300 -40
0 -40
-20
0
20
40
60
80
100
120
Temperature [C]
Temperature [C]
Figure 17. tDMIN vs. Temperature
Figure 18. Dead-Time Mismatch vs. Temperature
52
52
Duty at High-Side Output [%]
51
Duty at Low-Side Output [%]
-20 0 20 40 60 80 100 120
51
50
50
49
49
48
-40
48 -40
-20
0
20
40
60
80
100
120
Temperature [C]
Temperature [C]
Figure 19. High-Side Duty Ratio vs. Temperature
Figure 20. Low-Side Duty Ratio vs. Temperature
Figure 21. Frequency vs. RT
Figure 22. On-Region Characteristics
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 8
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Typical Performance Characteristics (Continued)
Figure 23. On-Resistance Variation vs. Drain Current and Gate Voltage
Figure 24. Body Diode Forward Voltage Variation vs. Source Current and Temperature
Figure 25. Breakdown Voltage Variation vs. Temperature
Figure 26. On-Resistance Variation vs. Temperature
Figure 27. Maximum Safe Operating Area
Figure 28. Maximum Drain-Current vs. Case Temperature
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 9
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Application Information
1. Under-Voltage Lockout (UVLO) Function
FAN7387V has a UVLO circuit for a low-side and highside block. When VDD reaches to the VDDUV+, the UVLO circuit is released and the FAN7387V operates normally. At UVLO condition, the FAN7387V has a low supply current of less than 130A. Once UVLO is released, FAN7387V operates normally until VDD goes below VDDUV-, the UVLO hysteresis. FAN7387V also has a high-side gate driver. The supply for the high-side driver is applied between VB and VOUT. To prevent malfunction at low supply voltage between VB and VOUT, FAN7387V provides an additional UVLO circuit. If VB-VOUT is under VHSUV+, the driver holds LOW state to turn off the highside switch. Once the voltage of VB-VOUT is higher than VHSUV+, after VB-VOUT exceeds VHSUV-, the operation of driver resumes.
RCT
t
LO
Tfix
Tfix
HO
DT DT
T
Figure 30. Typical Waveforms of RCT and Internal Signal (LO, HO) of IC
2. Oscillator
The running frequency is determined by an external timing resistor (RT) and timing capacitor (CT). The charge time of capacitor CT from 1/4 VDD to VDD determines the running frequency of gate driver output (VOUT). t = 1.38 * R T * C T (2)
The running frequency of IC is determined by 1/t and is approximately given as: frunning = 1 1 = t 2(t + t fix ) (3)
where t is the discharging time of the RCT voltage and tfix is constant value about 450ns of IC.
3. Programming Dead Time Control / Shutdown
A multi-function pin controls dead time using an external resistor (RDT) and protects abnormal condition using an external switch. This pin should be connected to an external capacitor to maintain stable operation. If the voltage of DT/SD is decreased to under 1V by an external switch, such as the TR or MOSFET, the FAN7387V enters shutdown mode. In this mode, the FAN7387V doesn't have any output signal.
Figure 29. Typical Connection Method
Figure 30 shows the typical waveforms of RCT and internal signals (LO and HO) of IC. From the circuit analysis, the discharging time of RCT, t, is given by: -t VRCT ( t ) = VDD x In R *C T T (1)
From Equation 1, it is possible to calculate the discharging time, t, from VDD to one quarter (1/4) of VDD by substituting VRCT(t) with 1/4 VDD.
Figure 31. External Shutdown Circuit
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 10
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
Physical Dimensions
.400 10.15 .373 9.46 .036 [0.9 TYP] (.092) [O2.337] PIN #1 (.032) [R0.813] .250.005 [6.350.13] PIN #1
A
[
]
B TOP VIEW OPTION 1 .070 1.78 .045 1.14] 7 TYP TOP VIEW OPTION 2
[
.310.010 [7.870.25]
.130.005 [3.30.13] .210 MAX [5.33] 7 TYP
C .021 0.53 .015 0.37] .001[.025] C
[
.015 MIN [0.38] .140 3.55 .125 3.17]
[
.300 [7.62] .430 MAX [10.92] .060 MAX [1.52] .010+.005 0.254+0.127 -.000 -0.000
.100 [2.54]
NOTES:
A. CONFORMS TO JEDEC REGISTRATION MS-001, VARIATIONS BA B. CONTROLING DIMENSIONS ARE IN INCHES REFERENCE DIMENSIONS ARE IN MILLIMETERS C. DOES NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCHES OR 0.25MM. D. DOES NOT INCLUDE DAMBAR PROTRUSIONS. DAMBAR PROTRUSIONS SHALL NOT EXCEED .010 INCHES OR 0.25MM. E. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994.
[
]
N08EREVG
Figure 32. 8-Lead Dual Inline Package (DIP)
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) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0 www.fairchildsemi.com 11
FAN7387V -- Ballast Control IC for Compact Fluorescent Lamp
(c) 2008 Fairchild Semiconductor Corporation FAN7387V * 1.0.0
www.fairchildsemi.com 12

▲Up To Search▲

Price & Availability of FAN7387V

	To Download FAN7387V Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .