FAN6862HR Fairchild Semiconductor, FAN6862HR Datasheet - Page 5

• Manufacturer Part Number: FAN6862HR
• Description: A highly integrated PWM controller, FAN6862H(HR) provides several features to enhance the performance of flyback converters
• Manufacturer: Fairchild Semiconductor

© 2010 Fairchild Semiconductor Corporation
FAN6862H(HR) • Rev. 1.0.0
Electrical Characteristics
V
V
Feedback Input Section
Current Sense Section
t
DD
DD
SOFT-START
Symbol
t
V
V
V
D-VDDOVP
V
V
V
V
V
V
f
I
I
t
V
V
I
I
= 15V and T
V
t
t
OSC-G
FB-ZDC
DD-OFF
DD-OP
DD-BM
DD-OVP
FB-OLP
D-OLP
f
Section
DD-ST
DD-LH
t
STHVA
Z
STHFL
hop-1
hop-3
DD-OP
DD-ON
DD-LH
t
OSC
f
f
A
LEB
FB-N
FB-G
FBO
PD
DV
DT
FB
V
Delay to Output
Leading-Edge Blanking Time
Flat Threshold Voltage for Current Limit
Valley Threshold Voltage for Current Limit
Period During Startup
Normal PWM Frequency
Hopping Period 1
Hopping Period 3
Green Mode Minimum Frequency
FB Threshold Voltage For Frequency
Reduction
FB Voltage at f
FB Threshold Voltage for Zero Duty
Frequency Variation vs. V
Frequency Variation vs. Temperature
Deviation
Input-Voltage to Current-Sense Attenuation
Input Impedance
FB Pin Open Voltage
Threshold Voltage for Open-Loop Protection
Open-Loop Protection Delay
Continuously Operating Voltage
Turn-On Threshold Voltage
Turn-Off Voltage
Threshold voltage for Latch-Off release
Startup Current
Normal Operating Supply Current
Green Mode Operating Supply Current
V
V
Latch-Off Holding Current
DD
DD
A
= 25°C unless otherwise noted.
Over Voltage Protection
OVP Debounce Time
OSC-G
Parameter
DD
Center Frequency
Hopping Range
Hopping Range
Deviation
5
V
With 1nF Load on
Gate, V
GATE Open,
V
FAN6862H Latch,
FAN6862HR Auto-
Restart
V
Duty>51%
Duty=0%
Startup Time
V
V
V
V
V
V
T
Test Conditions
A
TH-ON
FB
DD
FB
FB
FB
FB
FB
DD
= -40 to +105°C
=5V
> V
= V
≥ V
= V
≥ V
= V
= 11.5V to 20V
– 0.16V
FB-N
FB-N
FB-N
FB-G
FB-G
FB-G
FB
≥ V
FB-N
Min.
1/4.0
95.5
270
7.5
5.0
4.3
15
24
Continued on following page…
3
100.0
Typ.
1/3.5
0.55
11.5
0.02
±6.5
±2.9
100
360
8.5
0.4
4.4
2.6
2.1
1.7
5.2
4.6
16
25
30
40
25
56
5
4
8
3
6
104.5
Max.
1/3.0
250
5.4
4.9
9.5
2.5
24
17
30
26
50
65
2
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5
4
Unit
kHz
V/V
kHz
mA
mA
ms
ms
ms
ms
kΩ
μA
μA
ns
ns
μs
%
%
V
V
V
V
V
V
V
V
V
V
V
V