FAN6753 Fairchild Semiconductor, FAN6753 Datasheet - Page 6

• Manufacturer Part Number: FAN6753
• Description: The highly integrated FAN6753 PWM controller provides several features to enhance the performance of flyback converters
• Manufacturer: Fairchild Semiconductor

© 2009 Fairchild Semiconductor Corporation
FAN6753 • Rev. 1.0.3
Electrical Characteristics
V
LATCH Section
Feedback Input Section
Current-Sense Section
GATE Section
Over-Temperature Protection Section (OTP)
Notes:
3.
4.
I
V
GATE-SOURCE
DD
Symbol
V
GATE-CLAMP
DCY
V
t
V
V
V
Z
V
V
T
I
D-LATCH
I
=15V and T
FB-OPEN
t
V
V
FB-ZDC
LATCHth
T
LATCH
FB-OLP
D-OLP
GATE-L
GATE-H
SENSE
STHVA
t
Restart
When activated, the output is disabled and the latch is turned off.
The threshold temperature for enabling the output again and resetting the latch, after over-temperature protection
has been activated.
Z
STHFL
A
t
t
LEB
FB-N
FB-G
OTP
PD
SS
t
t
FB
r
f
V
MAX
Latch-Off Threshold Voltage
Latch-Off De-bounce Time
Output Current from LATCH Pin
Input Voltage to Current-Sense Attenuation
Input Impedance
Output High Voltage
FB Open-Loop Trigger Level
Delay Time of FB Pin Open-Loop Protection
Green-Mode Entry FB Voltage
Green-Mode Ending FB Voltage
Zero Duty-Cycle FB Current
Input Impedance
Current Limit Flatten Threshold Voltage
Current Limit Valley Threshold Voltage
Delay to Output
Leading-Edge Blanking Time
Period During Soft-Startup Time
Maximum Duty Cycle
Gate Low Voltage
Gate High Voltage
Gate Rising Time
Gate Falling Time
Gate Source Current
Gate Output Clamping Voltage
Protection Junction Temperature
Restart Junction Temperature
A
=25C unless otherwise noted.
Parameter
(Continued)
(4)
(3)
6
V
100µs Latch Off
V
FB Pin Open
Duty>40%
V
Duty=0%
Startup Time
V
V
V
V
V
V
LATCHth
LATCH
STHFL
DD
DD
DD
DD
DD
DD
=15V, I
=12V, I
=15V, C
=15V, C
=15V, GATE=6V
=22V
Conditions
–V
< V
> 5.2V, after
STHVA
LATCHth
O
O
L
L
=50mA
=50mA
=1nF
=1nF
1/4.5
Min.
0.87
0.30
100
150
250
5.0
4.6
2.8
2.2
4.3
5.0
50
60
30
40
92
4
8
T
1/4.0
+135
Typ.
0.90
0.34
100
100
140
250
100
5.3
4.8
3.0
2.4
5.0
5.3
56
12
65
50
OTP
25
-
Max. Units
1/3.5
0.93
0.38
160
108
200
180
350
5.6
5.6
5.0
3.2
2.6
1.5
5.7
1.5
62
70
90
18
7
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V/V
mA
mA
KΩ
ms
µA
kΩ
ms
µs
°C
°C
ns
ns
ns
ns
%
V
V
V
V
V
V
V
V
V
V