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| FAN6863RTY Datasheet, PDF (5/16 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller | |||
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Electrical Characteristics
VDD = 15V and TA = 25°C, unless otherwise noted.
Symbol
Parameter
VDD Section
VDD-OP Continuously Operating Voltage
VDD-ON Turn-On Threshold Voltage
VDD-OFF Turn-Off Voltage
VDD-LH Threshold Voltage for Latch-Off Release
IDD-ST Startup Current
IDD-OP1
Operating Supply Current when PWM
Operation
IDD-OP2 Operating Supply Current when FB< VFB-ZDC
VDD-OVP VDD Over-Voltage Protection
tD-VDDOVP VDD OVP Debounce Time
IDD-LH Latch-Off Holding Current
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
VSTHFL
VSTHVA
tSOFT-START
Delay to Output
Leading-Edge Blanking Time
Flat Threshold Voltage for Current Limit
Valley Threshold Voltage for Current Limit
Period During Startup Time
VSSCP
Threshold Voltage for SENSE Short-Circuit
Protection
tON-SSCP
Detect SENSE On Time for SENSE Short-
Circuit Protection
tSSCP
Debounce Time for SENSE Short-Circuit
Protection
Condition
VDD-ON â 0.16V
VDD = 20V,
VFB = 3V Gate Open
VDD = 15V,
VFB < VFB-ZDC
FAN6863L-Latch,
FAN6863R-Auto
Restart
VDD = 5V; FAN6863,
FAN6863L Only
FB > VFB-OLP,
tON < 2.5µs,
TA = -40 to +105°C
FB > VFB-OLP,
tON < 2.5µs,
TA = -40 to +105°C
FB>VFB-OLP,
TA = -40 to +105°C
Duty>55%
Duty = 0%
Startup Time
tON > 4.5µs,
FB < VFB-OLP,
TA = -40 to +105°C
tON > 4.5µs,
FB < VFB-OLP,
TA = -40 to +105°C
Min.
15
6.5
3
21.5
1/4.0
5.2
4.3
54
6
200
Typ. Max. Unit
20
V
16
17
V
7.0
7.5
V
4
5
V
8
15
µA
2
mA
600
µA
22.5 23.5 V
50
µs
70
80
µA
1/3.5 1/3.0 V/V
17
kâ¦
5.4
5.6
V
4.6
4.9
V
60
65 ms
7
8
ms
2.5
µs
100 250 ns
250
ns
0.6
V
0.39
V
5
ms
110
mV
4.4
µs
100
µs
Continued on the following pageâ¦
© 2011 Fairchild Semiconductor Corporation
FAN6863 ⢠Rev. 1.0.1
5
www.fairchildsemi.com
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