FAN7387V — Ballast Control IC for Compact Fluorescent Lamp
February 2012
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 +125°C
Package
8-Lead, Dual-In-line Package (DIP)
Packing Method
Tube
© 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)
© 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
S Q
R
D Q
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
VDD
4
RCT
VDC VB
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
© 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. T
A
=25°C unless otherwise specified.
Symbol
VB
V
OUT
V
RCT
I
CL
dV
OUT
/dt
T
A
T
STG
P
D
Θ
JA
Parameter
High-Side Floating Supply
High-Side Floating Supply Return
RCT Pins Input Voltage
Clamping Current Level
(1)
Allowable Offset Voltage Slew Rate
Operating Temperature Range
Storage Temperature Range
Power Dissipation
Thermal Resistance (Junction-to-Air)
Min.
-0.3
-0.3
Typ.
Max.
465.0
440.0
Unit
V
V
V
V
DD
25
50
-40
-65
2.1
70
+125
+150
mA
V/ns
°C
°C
W
°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
Electrical Characteristics
V
BIAS
(V
DD
, V
B
-V
OUT
)=14.0V, T
A
=25°C, unless otherwise specified.
Symbol
V
DC
Parameter
High Voltage Supply Voltage
Conditions
Min.
440
Typ.
Max.
Unit
V
High Voltage Supply Section
Low-Side Supply Characteristics (V
DD
)
VDD
UV+
V
DD
UVLO Positive-Going Threshold
VDD
UV-
V
CL
I
ST
I
QDD
I
DD
V
HSUV+
V
HSUV-
V
HSUHY
I
QHS
I
PBS
f
osc
D
V
RCT+
V
RCT-
V
IH
V
IL
t
D
t
DMIN
V
SD+
V
SD-
I
SD
t
SD
I
LKMOS
R
ON
I
S
I
SM
V
SD
V
DD
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
V
BS
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
V
SD/DT
=0 After Run
Mode
180
20kHz, C
L
=1nF
R
T
=50kΩ, C
T
=330pF
Running Mode
Running Mode
Running Mode
Running Mode
Running Mode
R
DT
=100kΩ
V
DT/SD
=V
DD
440
280
2.5
1
350
540
400
18
47.5
VDD
UHY
V
DD
-Side UVLO Hysteresis
I
DD
=10mA
V
DD
=9V
R
DT
=100kΩ
20kHz, C
L
=1nF
V
B
-V
OUT
Increasing
V
B
-V
OUT
Decreasing
8
7.5
14.4
V
DD
Increasing
V
DD
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
V
DD
V
DD
/4
3/4 V
DD
3/5 V
DD
640
520
ns
V
90
180
22
µA
10
9.5
V
90
380
µA
mA
13
9.8
V
High-Side Supply Characteristics (VB-V
OUT
)
Oscillator Characteristics
kHz
%
Protection Characteristics
V
µA
Ns
Internal MOSFET Section
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
V
GS
=0V, I
S
=0.38A
V
DS
=400V
V
GS
=10V, I
D
=190mA
4.6
0.38
3.04
1.2
50
6.0
µA
Ω
A
A
V
© 2008 Fairchild Semiconductor Corporation
FAN7387V • 1.0.0
www.fairchildsemi.com
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