FAN6861 Fairchild Semiconductor, FAN6861 Datasheet - Page 7

• Manufacturer Part Number: FAN6861
• Description: A highly integrated PWM controller, FAN6861 provides several features to enhance the performance of flyback converters
• Manufacturer: Fairchild Semiconductor

© 2009 Fairchild Semiconductor Corporation
FAN6861 • Rev. 1.0.1
PWM Output Section
Over-Temperature Protection (OTP) Section
Electrical Characteristics
V
t
t
DOTP2-LATCH
DD
Symbol
DOTP-LATCH
DCY
V
V
V
V
= 15V and T
V
V
CLAMP
I
OTP1
OTP2
t
t
RTO
RT
OH
OL
R
F
MAX
Maximum Duty Cycle
Output Voltage LOW
Output Voltage HIGH
Rising Time
Falling Time
Gate Output Clamping Voltage
Output Current of RT Pin
RT Pin Open Voltage
Threshold Voltage for Over-Temperature
Protection
Over-Temperature Latch-Off Debounce
Second Threshold Voltage for Over-
Temperature Protection
Second Over-Temperature Latch-Off
Debounce
A
= 25°C, unless otherwise noted.
Parameter
(Continued)
7
GATE = 1nF
V
V
GATE = 1nF
V
V
V
DD
DD
DD
FB
FB
Test Condition
= V
= V
= 15V, I
= 12V, I
= 20V
FB-N
FB-G
O
O
= 50mA
= 50mA
15.00
Min.
0.92
0.65
65
90
15
40
50
8
16.75
Typ.
1.00
0.70
230
100
3.7
70
30
99
17
51
18.50
Max.
1.08
0.75
108
150
1.5
75
19
62
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Unit
ms
μA
ns
ns
μs
%
V
V
V
V
V
V