FAN302UL Fairchild Semiconductor, FAN302UL Datasheet - Page 5

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FAN302UL

Manufacturer Part Number
FAN302UL
Description
This highly integrated PWM controller provides several features to enhance the performance of flyback converters
Manufacturer
Fairchild Semiconductor
Datasheet
© 2011 Fairchild Semiconductor Corporation
FAN302UL • Rev. 1.0.2
Electrical Characteristics
V
Symbol
HV Section
V
Oscillator Section
Feedback Input Section
Over-Temperature Protection Section
t
I
f
V
f
V
V
DD-BURST
D-VDDOVP
OSC-CM-MIN
V
OSC-CCM
V
DD
DD
V
I
I
I
FB-OPEN
V
V
DD-OVP
T
DD-OFF
DD-ST
DD-OP
HV-MIN
HV-LC
f
DD-ON
DD-LH
Z
I
OSC
A
FB
FB
=15V and T
OTP
HV
FB
Section
V
-
-
H
L
Minimum Startup Voltage on HV Pin
Supply Current Drawn from HV Pin
Leakage Current Drawn from HV Pin
Turn-On Threshold Voltage
Turn-Off Threshold Voltage
Threshold Voltage for Latch-Off Release
Startup Current
Operating Supply Current
Burst-Mode Operating Supply Current
V
V
Frequency
Minimum Frequency by Continuous Conduction
Mode (CCM) Prevention Circuit
Minimum Frequency in (CC) Regulation
Internal Voltage Scale-Down Ratio of FB Pin
FB Pin Input Impedance
FB Pin Pull-Up Voltage
FB Threshold to Disable Gate Drive in Burst Mode
FB Threshold to Enable Gate Drive in Burst Mode
Threshold Temperature for Over-Temperature
Protection
DD
DD
Over-Voltage Protection Level
Over-Voltage Protection Debounce Time
A
=25C unless noted.
(6)
Parameter
Center Frequency
Hopping Range
(4)
(5)
5
V
V
V
V
V
Controller Off
V
(Controller On with
Auxiliary Supply)
V
V
f=140kHz
V
V
FB Pin Open
V
V
HV
HV
DD
DD
DD
DD
DD
DD
CS
CS
FB
FB
=100V, V
=500V, V
=V
=18V, f=f
=8V, C
=5V, V
=5V, V
Falling,V
Rising,V
Rising
Falling
Falling
DD-ON
Condition
S
S
L
=1nF
=2.5, V
=0V
– 0.16V
CS
OSC
CS
DD
DD
=5V, V
=5V, V
=0V,
=15V
, C
FB
Continued on the following page…
L
=1nF
=5V
S
S
=0V 1.05 1.15
=0V
Min. Typ. Max. Unit
1/3.5 1/3.0 1/2.5
+130 +140 +150
25.0 26.5
135
0.8
4.7
1.0
15
17
40
38
2.50
100
140
400
200
1.5
0.8
5.0
3.5
±5
5.3
1.1
16
22
45
42
www.fairchildsemi.com
28.0
1.25
450
350
180
145
5.0
3.0
5.3
4.0
1.2
50
17
27
50
44
kHz
kHz
kHz
V/V
mA
mA
μA
μA
μA
kΩ
μs
C
V
V
V
V
V
V
V
V

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