FAN6863R Fairchild Semiconductor, FAN6863R Datasheet - Page 5

• Manufacturer Part Number: FAN6863R
• Description: A highly integrated PWM controller, FAN6863 provides several features to enhance the performance of flyback converters
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FAN6863 • Rev. 1.0.1
Electrical Characteristics
V
V
Feedback Input Section
Current Sense Section
t
Symbol
DD
t
SOFT-START
DD
V
t
V
V
D-VDDOVP
V
V
V
I
I
t
V
V
V
ON-SSCP
V
I
I
FB-OPEN
t
t
ON-SCP
DD-OP1
DD-OP2
t
DD-OVP
DD-OFF
D-SCP
DD-ST
DD-LH
FB-OLP
D-OLP
DD-ON
t
STHVA
SSCP
DD-OP
Z
STHFL
= 15V and T
DD-LH
t
SSCP
A
Section
LEB
PD
FB
V
Continuously Operating Voltage
Turn-On Threshold Voltage
Turn-Off Voltage
Threshold Voltage for Latch-Off Release
Startup Current
Operating Supply Current when PWM
Operation
Operating Supply Current when FB< V
V
V
Latch-Off Holding Current
Input-Voltage to Current-Sense Attenuation
Input Impedance
FB Pin Open Voltage
Threshold Voltage for Open-Loop Protection
Open-Loop Protection Delay
Secondary Short Circuit Protection Delay
Short-Circuit Protection On-Time Detection
Delay to Output
Leading-Edge Blanking Time
Flat Threshold Voltage for Current Limit
Valley Threshold Voltage for Current Limit
Period During Startup Time
Threshold Voltage for SENSE Short-Circuit
Protection
Detect SENSE On Time for SENSE Short-
Circuit Protection
Debounce Time for SENSE Short-Circuit
Protection
DD
DD
A
Over-Voltage Protection
OVP Debounce Time
= 25°C, unless otherwise noted.
Parameter
FB-ZDC
5
V
V
V
V
V
FAN6863L-Latch,
FAN6863R-Auto
Restart
V
FAN6863L Only
FB > V
t
T
FB > V
t
T
FB>V
T
Duty>55%
Duty = 0%
Startup Time
t
FB < V
T
t
FB < V
T
ON
ON
ON
ON
A
A
A
A
A
DD-ON
DD
FB
DD
FB
DD
= -40 to +105°C
= -40 to +105°C
= -40 to +105°C
= -40 to +105°C
= -40 to +105°C
> 4.5µs,
> 4.5µs,
< 2.5µs,
< 2.5µs,
= 3V Gate Open
< V
= 20V,
= 15V,
= 5V; FAN6863,
Condition
FB-OLP
FB-OLP,
FB-OLP
FB-OLP
FB-OLP
– 0.16V
FB-ZDC
,
,
,
,
Continued on the following page…
Min.
1/4.0
21.5
200
6.5
5.2
4.3
15
54
3
6
Typ.
1/3.5
22.5
0.39
600
100
250
110
100
7.0
5.4
4.6
2.5
0.6
4.4
16
50
70
17
60
4
8
7
5
Max.
1/3.0
23.5
250
5.6
4.9
7.5
65
20
17
15
80
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8
5
2
Unit
V/V
mV
mA
ms
ms
ms
kΩ
µA
µA
µA
µs
ns
µs
µs
ns
µs
V
V
V
V
V
V
V
V
V