Data Sheet

© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSL126MR • Rev. 1.0.1 5
FSL126MR — Green Mode Fairchild Power Switch (FPS™)
Electrical Characteristics
T
A
= 25°C unless otherwise specified.
Symbol Parameter Conditions Min. Typ. Max. Units
SenseFET Section
BV
DSS
Drain-Source Breakdown Voltage V
CC
= 0V, I
D
= 250µA 650 V
I
DSS
Zero Gate Voltage Drain Current V
DS
= 650V, V
GS
= 0V 250 µA
R
DS(ON)
Drain-Source On-State Resistance V
GS
= 10V, V
GS
= 0V, T
C
= 25°C 4.9 6.2 
C
ISS
Input Capacitance V
GS
= 0V, V
DS
= 25V, f = 1MHz 210 pF
C
OSS
Output Capacitance V
GS
= 0V, V
DS
= 25V, f = 1MHz 33.3 pF
C
RSS
Reverse Transfer Capacitance V
GS
= 0V, V
DS
= 25V, f = 1MHz 4.1 pF
t
d(ON)
Turn-On Delay V
DD
= 350V, I
D
= 2A 23 ns
t
r
Rise Time V
DD
= 350V, I
D
= 2A 16.4 ns
t
d(OFF)
Turn-Off Delay V
DD
= 350V, I
D
= 2A 17.2 ns
t
f
Fall Time V
DD
= 350V, I
D
= 2A 23 ns
Control Section
f
OSC
Switching Frequency V
DS
= 650V, V
GS
= 0V 61 67 73 KHz
f
OSC
Switching Frequency Variation V
GS
= 10V, V
GS
= 0V, T
C
= 125°C ±5 ±10 %
f
FM
Frequency Modulation ±3 KHz
D
MAX
Maximum Duty Cycle V
FB
= 4V 71 77 83 %
D
MIN
Minimum Duty Cycle V
FB
= 0V 0 0 0 %
V
START
UVLO Threshold Voltage
11 12 13 V
V
STOP
After Turn-On 7 8 9 V
I
FB
Feedback Source Current V
FB
= 0V 320 400 480 µA
t
S/S
Internal Soft-Start Time V
FB
= 4V 10 15 20 ms
Burst Mode Section
V
BURH
Burst Mode Voltage T
J
= 25°C
0.48 0.60 0.72 V
V
BURL
0.32 0.45 0.58 V
V
BUR(HYS)
150 mV
Protection Section
I
LIM
Peak Current Limit T
J
= 25°C, di/dt = 300mA/µs 1.32 1.50 1.68 A
t
CLD
Current Limit Delay Time
(11)
200 ns
V
SD
Shutdown Feedback Voltage V
CC
= 15V 5.5 6.0 6.5 V
I
DELAY
Shutdown Delay Current V
FB
= 5V 3.5 5.0 6.5 µA
V
OVP
Over-Voltage Protection Threshold V
FB
= 2V 22.5 24.0 25.5 V
t
OSP
Output-Short
Protection
(11)
Threshold Time
T
J
= 25°C
OSP Triggered When t
ON
<t
OSP
,
V
FB
>V
OSP
and Lasts Longer than
t
OSP_FB
1.00 1.35 µs
V
OSP
Threshold Feedback
Voltage
1.44 1.60 V
t
OSP_FB
Feedback Blanking
Time
2.0 2.5 µs
V
AOCP
AOCP Voltage
(11)
T
J
= 25°C 0.85 1.00 1.15 V
TSD
Thermal
Shutdown
(11)
Shutdown Temperature 125 137 150 °C
HYS
TSD
Hysteresis 60 °C
t
LEB
Leading-Edge Blanking Time
(11)
300 ns
Continued on the following page…