Data Sheet
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSFR2100 • Rev.1.1.0 5
FSFR2100 — Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converters
Electrical Characteristics
T
A
=25C unless otherwise specified.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
MOSFET Section
BV
DSS
Drain-to-Source Breakdown Voltage
I
D
=200 μA, T
A
=25C
600
V
I
D
=200 μA, T
A
=125C
650
R
DS(ON)
On-State Resistance V
GS
=10 V, I
D
=5.5 A 0.32 0.38
t
rr
Body Diode Reverse Recovery Time
(6)
V
GS
=0 V, I
Diode
=11.0 A 120 ns
C
ISS
Input Capacitance
(6)
V
DS
=25V, V
GS
=0 V,
f=1.0 MHz
1148 pF
C
OSS
Output Capacitance
(6)
671 pF
Supply Section
I
LK
Offset Supply Leakage Current H-V
CC
=V
CTR
=600 V/500 V 50 μA
I
Q
HV
CC
Quiescent HV
CC
Supply Current (HV
CC
UV+) - 0.1 V 50 120 μA
I
Q
LV
CC
Quiescent LV
CC
Supply Current (LV
CC
UV+) - 0.1 V 100 200 μA
I
O
HV
CC
Operating HV
CC
Supply Current
(RMS Value)
f
OSC
=100 KHz, V
CON
> 0.6 V 6 9 mA
No Switching, V
CON
< 0.4 V 100 200 μA
I
O
LV
CC
Operating LV
CC
Supply Current
(RMS Value)
f
OSC
=100KHz, V
CON
> 0.6 V 7 11 mA
No Switching, V
CON
< 0.4 V 2 4 mA
UVLO Section
LV
CC
UV+ LV
CC
Supply Under-Voltage Positive-Going Threshold (LV
CC
Start) 13.0 14.5 16.0 V
LV
CC
UV- LV
CC
Supply Under-Voltage Negative-Going Threshold (LV
CC
Stop) 10.2 11.3 12.4 V
LV
CC
UVH LV
CC
Supply Under-Voltage Hysteresis 3.2 V
HV
CC
UV+ HV
CC
Supply Under-Voltage Positive-Going Threshold (HV
CC
Start) 8.2 9.2 10.2 V
HV
CC
UV-
HV
CC
Supply Under-Voltage Negative-Going Threshold (HV
CC
Stop)
7.8 8.7 9.6 V
HV
CC
UVH HV
CC
Supply Under-Voltage Hysteresis 0.5 V
Oscillator & Feedback Section
V
CONDIS
Control Pin Disable Threshold Voltage 0.36 0.40 0.44 V
V
CONEN
Control Pin Enable Threshold Voltage 0.54 0.60 0.66 V
V
RT
V-I Converter Threshold Voltage
R
T
=5.2 K
1.5 2.0 2.5 V
f
OSC
Output Oscillation Frequency 94 100 106 KHz
DC Output Duty Cycle 48 50 52 %
f
SS
Internal Soft-Start Initial Frequency
f
SS
=f
OSC
+40 kHz, R
T
=5.2 K
140 KHz
t
SS
Internal Soft-Start Time 2 3 4 ms
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