Datasheet

© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSFR1800 / FSFR1700-HS • Rev.1.0.1 6
FSFR-HS Series — Advanced Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converter
Electrical Characteristics (Continued)
T
A
=25°C, LV
CC
, HV
CC
=17 V
DC
and R
T
=26 kΩ unless otherwise specified.
Symbol Parameter Conditions Min. Typ. Max. Unit
Protection Section
V
RT,RESET
Threshold Voltage to Begin Restart 0.07 0.12 0.17 V
t
DELAY,RESET
Delay to Disable OSC Circuit After Protection f
osc
=50 kHz 20 ms
V
LINE
On Threshold of Input Voltage 2.38 2.50 2.62 V
I
LINE
Hysteresis Current for Line UVLO 7.5 9.5 11.5 μA
V
OVP
LV
CC
Over-Voltage Protection 21 23 25 V
V
AOCP
AOCP Threshold Voltage -1.0 -0.9 -0.8 V
t
BAO
AOCP Blanking Time
(7)
V
CS
< V
AOCP
50 ns
V
OCP
OCP Threshold Voltage -0.64 -0.58 -0.52 V
t
BO
OCP Blanking Time
(7)
V
CS
< V
OCP
1.0 1.5 2.0 μs
t
DA
Delay Time (Low-Side) Detecting from V
AOCP
to Switch Off
(7)
250 400 ns
T
SD
Thermal Shutdown Temperature
(7)
120 135 150
°C
Dead-Time Control Section
D
T
Dead Time
(8)
350 ns
Notes:
7. This parameter, although guaranteed, is not tested in production.
8. These parameters, although guaranteed, are tested only in EDS (wafer test) process.