FAN6208 Fairchild Semiconductor, FAN6208 Datasheet - Page 7

• Manufacturer Part Number: FAN6208
• Description: FAN6208 is a synchronous rectification (SR) controller for isolated LLC or LC resonant converters that can drive two individual SR MOSFETs emulating the behavior of rectifier diodes
• Manufacturer: Fairchild Semiconductor

© 2010 Fairchild Semiconductor Corporation
FAN6208 • Rev. 1.0.1
Electrical Characteristics
V
Feedback Detection (FD) Section
RP Section
∆V1% ∆V2%
DD
V
t
Symbol
D-SHRINK-FD
t
DD
=20V, T
SHRINK-FD
t
Figure 5. t
V
DB-SCP
V
t
V
-V
RPOS
I
RPHL
RPO
RP
RPS
FD.SCP
A
=25°C, unless otherwise specified. All voltages are with respect to GND unless otherwise noted.
DEAD
Feedback Increase
Threshold for Gate Shrink
Gate Shrink by Feedback
Detection
Gate-Shrink Duration by
Feedback Detection
Short-Circuit Protection
(SCP) Threshold by
Feedback Detection
Debounce Time for Short-
Circuit Protection (SCP)
RP Source Current
RP Open Protect
RP Short Protect
RP Open/Short Debounce
H/L Frequency Threshold
vs. t
Parameter
DETL
RP Curve for LF Mode
[(V
DD
-V
Conditions
FD
)
n+1
/(V
7
DD
-V
Figure 6. t
FD
)
n
]
DEAD
Min.
38.5
3.40
0.25
1.40
200
1.6
60
12
vs. t
DETL
Typ.
41.5
3.65
0.30
1.46
120
270
1.4
2.0
90
16
RP Curve for HF Mode
Max.
44.5
3.90
0.35
1.52
120
340
2.4
20
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Units
mV
μA
μs
μs
μs
μs
%
V
V
V