FAN6747 Datasheet, PDF (9/15 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller

Electrical Characteristics
VDD=15V and TA=25°C, unless otherwise specified.
Symbol
Parameter
Current Sense Section
tPD
tLEB
Vlimit-L
Vlimit-H
VOCP-L
VOCP-H
tSOFT-START
tD-OCP
Delay to Output
Leading-Edge Blanking Time
Current Limit at Low Line
(VAC-RMS=86V)
Current Limit at High Line
(VAC-RMS=259V)
OCP Trigger Level at Low Line
(VAC-RMS=86V)
OCP Trigger Level at High Line
(VAC=259V)
Period During Startup
Delay Time for Output OCP
tD-SCP
Delay Time for Output SCP
PWM Output Section
DCYMAX
VOL
VOH
tR
tF
VCLAMP
Maximum Duty Cycle
Output Voltage Low
Output Voltage High
Rising Time
Falling Time
Gate Output Clamping Voltage
Over-Temperature Protection Section
IRT
VOTP-LATCH-
OFF
tD_OTP-LATCH
Output Current of RT Pin
Threshold Voltage for Over-
Temperature Protection
Over-Temperature Latch-Off
Debounce
VOTP2-LATCH- Second Threshold Voltage for
OFF
Over-Temperature Protection
tD_OTP2-LATCH
Second Over-Temperature
Latch-Off Debounc
Conditions
VDC=122V, Series
R=200kΩ to HV
VDC=366V, Series
R=200kΩ to HV
VDC=122V, Series
R=200kΩ to HV
VDC=366V, Series
R=200kΩ to HV
Startup Time
VCS>VOCP
VCS>VOCP
and VDD< VDD-SCP
VDD = 15V, IO=50mA
VDD = 12V, IO=50mA
GATE=1nF
GATE=1nF
VDD=22V
VFB > VFB-N
VFB < VFB-G
VFB > VFB-N
VFB < VFB-G
Min.
230
0.790
0.690
0.450
0.390
7
190
12
88.0
8
11.0
92
1.00
14
40
0.65
110
320
Typ.
65
270
0.825
0.725
0.480
0.420
8
215
15
89.5
95
30
13.5
100
1.05
16
51
0.70
185
605
Max.
200
310
0.860
0.760
0.510
0.450
9
240
18
91.0
1.5
16.0
108
1.10
18
62
0.75
260
890
Units
ns
ns
V
V
V
V
ms
ms
ms
%
V
V
ns
ns
V
μA
V
ms
ms
V
µs
© 2009 Fairchild Semiconductor Corporation
FAN6747 • Rev. 1.0.1
9
www.fairchildsemi.com