FAN6747 Datasheet, PDF (5/15 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller

Electrical Characteristics
VDD=15V and TA=25°C, unless otherwise specified.
Symbol
Parameter
Conditions
V_DD Section
VOP
VDD-ON
Continuously Operating Voltage
Turn-On Threshold Voltage
VDD-OFF PWM Turn-Off Threshold Voltage
VDD-OLP
Threshold Voltage on VDD for HV
JFET Turn-On in Protection
Condition
After Trigger OCP/
SCP/ OVP/ OTP
VDD-LH
Threshold Voltage on VDD Pin for
Latch-Off Release Voltage
VDD-AC
Threshold Voltage on VDD Pin for
Disable AC Recovery to Avoid
Startup Failed
VDD-SCP
Threshold Voltage on VDD Pin for
Short-Circuit Protection (SCP)
VFB > VFBO
ILH
Holding Current Under Latch-Off
Conduction
VDD=5V
IDD-ST
Startup Current
VDD-ON – 0.16V
IDD-OLP
Holding Current at PWM-Off
Phase
VDD-OLP+0.1V
IDD-OP1
Operating Supply Current when
PWM Operating
VDD=20V, VFB=3V
Gate Open
IDD-OP2
Operating Supply Current when
PWM Stop
VDD=20V, VFB=3V
Gate Open
VDD-OVP
Threshold Voltage on VDD Pin for
VDD Over-Voltage Protection
(Latch-Off)
tD-OVP
VDD OVP Debounce Time
VFB > VFB-N
Min. Typ. Max.
24
15.5
16.5
17.5
8
9
10
5.5
6.5
7.5
3.5
4.0
4.5
VDD-OFF
+2.5
VDD-OFF
+3.0
VDD-OFF
+0.5
VDD-OFF
+1.0
80
100
235
270
VDD-OFF
+3.5
VDD-OFF
+1.5
120
30
305
1.7
2.0
1.2
1.5
24
25
26
75
160
245
Units
V
V
V
V
V
V
V
μA
μA
μA
mA
mA
V
μs
© 2009 Fairchild Semiconductor Corporation
FAN6747 • Rev. 1.0.1
Figure 5. UVLO Specification
5
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