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FAN6862WLTY Datasheet, PDF (5/16 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller
Electrical Characteristics
VDD = 15 V and TA = 25°C, unless otherwise noted.
Symbol
Parameter
Condition
Min. Typ. Max. Unit
VDD Section
VDD-OP Continuously Operating Voltage
20
V
VDD-ON
VDD-OFF
Turn-On Threshold Voltage
Turn-Off Voltage
15
16
17
V
6.5
7.0
7.5
V
VDD-LH Threshold Voltage for Latch-Off Release
FAN6862W,
FAN6862WL Only
4
V
IDD-ST Startup Current
VDD-ON – 0.16 V
8
15
µA
IDD-OP1
Operating Supply Current in PWM Operation
VDD = 20 V,
VFB = 3 V Gate Open
2
mA
IDD-OP2
Operating Supply Current when VFB < VFB-ZDC
VDD = 15 V,
VFB < VFB-ZDC
600
µA
VDD-OVP VDD Over-Voltage Protection
FAN6862WL-Latch,
FAN6862WR-Auto
21.0 22.2 23.5 V
Restart
tD-VDDOVP VDD OVP Debounce Time
IDD-LH Latch-Off Holding Current
VDD = 5 V;
FAN6862W,
FAN6862WL Only
50
µs
70
80
µA
Feedback Input Section
AV
ZFB
VFB-OPEN
VFB-OLP
Input-Voltage to Current-Sense Attenuation
Input Impedance
FB Pin Open Voltage
Threshold Voltage for Open-Loop Protection
tD-OLP Open-Loop Protection Delay
tD-SCP Secondary Short-Circuit Protection Delay
tON-SCP Short-Circuit Protection On-Time Detection
Current Sense Section
tPD
tLEB
VLIMIT-H
VLIMIT-L
tSOFT-START
Delay to Output
Leading-Edge Blanking Time
High Threshold Voltage for Current Limit
Low Threshold Voltage for Current Limit
Period During Startup Time
VFB > VFB-OLP,
tON > 2.5 µs,
TA = -40 to +105°C
FB > VFB-OLP,
tON < 2.5 µs,
TA = -40 to +105°C
VFB>VFB-OLP,
TA = -40 to +105°C
Duty>55%
Duty = 0%
Startup Time
1/4.0 1/3.5 1/3.0 V/V
17
kΩ
5.2
5.4
5.6
V
4.3
4.6
4.9
V
54
60
66 ms
6
7
8
ms
2.5
µs
100 250 ns
200 250
ns
0.57 0.60 0.63 V
0.36 0.39 0.42 V
4.75 5.00 10.00 ms
Continued on the following page…
© 2012 Fairchild Semiconductor Corporation
FAN6862W • Rev. 1.0.0
5
www.fairchildsemi.com