FAIRCHILD FAN7387V

FAN7387V
Ballast Control IC for Compact Fluorescent Lamp
Features
Description
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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).
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
Applications
ƒ
Compact Fluorescent Lamp Ballast
8-DIP
Ordering Information
Part Number
Operating Temperature
FAN7387VN
-40 to +125°C
Eco Status
RoHS
Package
Packing Method
8-Lead, Dual-In-line
Package (DIP)
Tube
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
July 2009
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)
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
2
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Typical Applications Diagrams
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Internal Block Diagram
HIGH- SIDE DRIVER
VB
UVLO
UVLO
Noise
Canceller
S
Q
R
Q
S Q
R
D Q
Internal CLK
SET
( Frequency Divider
)
Q
RESET
External
Sync
HIN
IN
VDD
Logic Detection Level
DT
LIN
DELAY
SHUTDOWN
Always LIN
First
LOW- SIDE GATE DRIVER
HIN
LIN
Figure 3.
Functional Block Diagram
Pin Configuration
OUT PGND GND DT/SD
8
7
6
5
FAN7387V
YWW
( YWW : Work Week Code)
1
2
3
4
VDC VB VDD
Figure 4.
RCT
Pin Configurations (Top View)
Pin Definitions
Pin #
Name
Description
1
VDC
2
VB
3
VDD
Supply Voltage
4
RCT
Oscillator Frequency Set Resistor and Capacitor
5
DT/SD
6
GND
7
PGND
8
OUT
High-voltage Supply
High-Side Floating Supply
Dead Time Set Resistor
Signal Ground
Power Ground
High-Side Floating Supply Return
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
3
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=25°C unless otherwise specified.
Symbol
VB
Parameter
Min.
Typ.
Max.
Unit
High-Side Floating Supply
-0.3
465.0
V
VOUT
High-Side Floating Supply Return
-0.3
440.0
V
VRCT
RCT Pins Input Voltage
ICL
Clamping Current Level
dVOUT/dt
TA
TSTG
VDD
(1)
V
25
Allowable Offset Voltage Slew Rate
mA
50
V/ns
Operating Temperature Range
-40
+125
°C
Storage Temperature Range
-65
+150
°C
PD
Power Dissipation
2.1
W
ΘJA
Thermal Resistance (Junction-to-Air)
70
°C/W
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.
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
4
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Absolute Maximum Ratings
VBIAS (VDD, VB -VOUT)=14.0V, TA=25°C, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
High Voltage Supply Section
VDC
High Voltage Supply Voltage
440
V
Low-Side Supply Characteristics (VDD)
VDDUV+ VDD UVLO Positive-Going Threshold
VDD Increasing
9
11
13
VDDUV-
VDD Decreasing
7.8
8.8
9.8
VDD UVLO Negative-Going Threshold
VDDUHY VDD-Side UVLO Hysteresis
2.2
VCL
Supply Camping Voltage
IDD=10mA
14.4
IST
Startup Supply Current
VDD=9V
60
90
IQDD
Low-Side Quiescent Supply Current
RDT=100kΩ
230
380
IDD
Dynamic Operating Supply Current
20kHz, CL=1nF
0.6
V
15.4
µA
mA
High-Side Supply Characteristics (VB-VOUT)
VHSUV+
High-Side UVLO Positive-Going Threshold
VB-VOUT Increasing
8
9
10
VHSUV-
High-Side UVLO Negative-Going Threshold
VB-VOUT Decreasing
7.5
8.5
9.5
VHSUHY
VBS Supply UVLO Hysteresis
IQHS
High-Side Quiescent Supply Current
IPBS
High-Side Dynamic Operating Supply Current
V
0.5
50
90
130
180
18
20
22
47.5
49.0
20kHz, CL=1nF
µA
Oscillator Characteristics
fosc
Oscillation Frequency
RT=50kΩ, CT=330pF
D
Duty Cycle
Running Mode
VRCT+
Upper Threshold Voltage of RCT
Running Mode
VRCT-
%
VDD
Lower Threshold Voltage of RCT
Running Mode
VDD/4
VIH
Logic “1” Input Voltage of RCT
Running Mode
3/4 VDD
VIL
Logic “0” Input Voltage of RCT
Running Mode
tD
Dead Time
RDT=100kΩ
440
540
640
Minimum Dead Time
VDT/SD=VDD
280
400
520
tDMIN
kHz
V
3/5 VDD
ns
Protection Characteristics
VSD+
Shutdown “1” Input Voltage
VSD-
Shutdown “0” Input Voltage
ISD
Shutdown Current
tSD
Shutdown Propagation Delay
2.5
VSD/DT=0 After Run
Mode
1
350
180
V
µA
Ns
Internal MOSFET Section
ILKMOS
Internal MOSFET Leakage Current
VDS=400V
RON
Static Drain-Source On-Resistance
VGS=10V, ID=190mA
4.6
50
µA
6.0
Ω
IS
Maximum Continuous Drain-Source Diode
Forward Current
0.38
A
ISM
Maximum Pulsed Continuous Drain-Source
Diode Forward Current
3.04
A
VSD
Drain-Source Diode Forward Voltage
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
VGS=0V, IS=0.38A
1.2
V
www.fairchildsemi.com
5
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Electrical Characteristics
12.5
200
12.0
VDDUV+ [V]
IST [ μA]
150
100
11.5
11.0
10.5
50
10.0
0
-40
-20
0
20
40
60
80
100
9.5
-40
120
-20
0
Figure 5. Startup Current vs. Temperature
60
80
100
120
10.0
9.6
10.0
9.2
9.5
VBSUV+ [V]
VDDUV- [V]
40
Figure 6. VDD UVLO+ vs. Temperature
10.5
9.0
8.8
8.4
8.5
8.0
8.0
7.6
7.5
-40
20
Temperature [°C]
Temperature [°C]
7.2
-20
0
20
40
60
80
100
120
-40
-20
0
Temperature [°C]
20
40
60
80
100
120
Temperature [°C]
Figure 7. VDD UVLO- vs. Temperature
Figure 8. VB-VOUT UVLO+ vs. Temperature
10.0
16.0
9.6
15.8
VCL [V]
VBSUV- [V]
9.2
8.8
8.4
8.0
15.6
15.4
15.2
7.6
15.0
7.2
-40
-20
0
20
40
60
80
100
14.8
-40
120
Temperature [°C]
0
20
40
60
80
100
120
Temperature [°C]
Figure 9. VB-VOUT UVLO- vs. Temperature
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
-20
Figure 10. VCL vs. Temperature
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6
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Typical Performance Characteristics
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
2.5
500
2.0
400
IQDD [ μA]
IPDD [mA]
Typical Performance Characteristics (Continued)
1.5
1.0
0.5
0.0
-40
300
200
100
-20
0
20
40
60
80
100
0
-40
120
Temperature [°C]
20
40
60
80
100
120
Figure 12. IQDD vs. Temperature
3.0
500
2.5
VSD+ [V]
400
ISD [ μA]
0
Temperature [°C]
Figure 11. IPDD vs. Temperature
300
200
2.0
1.5
1.0
0.5
100
0
-40
-20
-20
0
20
40
60
80
100
0.0
-40
120
-20
0
20
40
60
80
100
120
Temperature [°C]
Temperature [°C]
Figure 13. ISD vs. Temperature
Figure 14. VSD+ vs. Temperature
23
3.0
22
fOSC1[kHz]
VSD- [V]
2.5
2.0
21
20
19
1.5
18
1.0
-40
-20
0
20
40
60
80
100
17
-40
120
Figure 15. VSD- vs. Temperature
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
-20
0
20
40
60
80
100
120
Temperature [°C]
Temperature [°C]
Figure 16. Operating Frequency vs. Temperature
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7
50
500
475
40
tDMIN_mismatch[ns]
tDMIN[ns]
450
425
400
375
30
20
350
10
325
300
-40
-20
0
20
40
60
80
100
0
-40
120
-20
0
Temperature [°C]
40
60
80
100
120
Temperature [°C]
Figure 17. tDMIN vs. Temperature
Figure 18. Dead-Time Mismatch vs. Temperature
52
Duty at Low-Side Output [%]
52
Duty at High-Side Output [%]
20
51
50
49
51
50
49
48
-40
-20
0
20
40
60
80
100
48
-40
120
Temperature [°C]
-20
0
20
40
60
80
100
120
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
© 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
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
9
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Typical Performance Characteristics (Continued)
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 130µA. 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.
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 × In⎜⎜
R
⎝ T • CT
⎞
⎟
⎟
⎠
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.
(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
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
10
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Application Information
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
Physical Dimensions
[
.400 10.15
.373 9.46
A
]
.036 [0.9 TYP]
(.092) [Ø2.337]
(.032) [R0.813]
PIN #1
.250±.005 [6.35±0.13]
PIN #1
B
TOP VIEW
OPTION 1
TOP VIEW
OPTION 2
[ ]
.070 1.78
.045 1.14
.310±.010 [7.87±0.25]
.130±.005 [3.3±0.13]
.210 MAX
[5.33]
7° TYP
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]
[ ]
.100
[2.54]
.430 MAX
[10.92]
NOTES:
.060 MAX
[1.52]
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.
[
+0.127
.010+.005
-.000 0.254-0.000
]
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/.
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
11
FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
12