FAN501A Datasheet, PDF (5/16 Pages) Fairchild Semiconductor – Offline DCM / CCM Flyback PWM Controller for Charger Applications

Electrical Characteristics
VDD=15 V and TJ=-40~125C unless noted.
Symbol
Parameter
Conditions
Min.
HV Section
VHV-MIN Minimum Startup Voltage on HV Pin
IHV
Supply Current Drawn from HV Pin
IHV-LC Leakage Current Drawn from HV Pin
VDD Section
VDD-ON Turn-On Threshold Voltage
VDD-OFF Turn-Off Threshold Voltage
VDD-HVON Threshold Voltage for HV Startup
VDD-DLH Threshold Voltage for Latch Release
IDD-ST Startup Current
IDD-OP Operating Supply Current
IDD-Burst Burst Mode Operating Supply Current
VDD-OVP VDD Over-Voltage Protection Level
Oscillator Section
VHV=120 V, VDD=0 V
VHV=500 V, VDD=VDD-OFF+1 V
VDD Rising
VDD Falling
VDD=VDD-ON-0.16 V
VCS=5.0 V, VS=3 V, VFB=3 V,
VDD=15 V, CGATE=1 nF
VCS=0.3 V, VS=0 V, VFB=0 V
VDD=VDD-ONVDD-OVP10 V,
CGATE=1 nF
1.2
16.0
5.5
3.4
26.5
fOSC--H
Operating Frequency, IVS Below
Threshold IVS-L(Low Line)⁽⁴⁾
fOSC--L
Operating Frequency, IVS Over
Threshold IVS-H(High Line)⁽⁴⁾
ΔfHopping-H Frequency Hopping Range, High Line
ΔfHopping-L Frequency Hopping Range, Low Line
ΔtHopping Frequency Hopping Period
Feedback Input Section
VCS=5 V, VS=2.5 V, VFB=6 V 133
VCS=5 V, VS=2.5 V, VFB=4 V
79
VCS=0.5 V, VS=0.7 V, VFB=3 V ±5.5
VCS=0.5 V, VS=0.0 V, VFB=3 V ±2.5
ZFB
FB Pin Input Impedance
AV
Internal Voltage Attenuator of FB Pin
VFB-Open FB Pin Pull-Up Voltage
VFB-Burst-H
FB Threshold to Enable Gate Drive in
Burst Mode⁽⁴⁾
VFB-Burst-L
FB Threshold to Disable Gate Drive in
Burst Mode⁽⁴⁾
Over-Temperature Protection Section
FB Pin Open
VFB Rising with VCS=0.3 V,
VS=0 V
VFB Falling with VCS=0.3 V,
VS=0 V
36
5.00
1.60
1.55
TOTP Threshold Temperature for Over-Temperature Protection
Shutdown Function Section
ISD
VSD-TH
SD Pin Source Current
Threshold Voltage for Shutdown
Function Enable
VCS=0.3 V
VCS=0.3 V
85
0.85
Typ.
2.0
0.8
17.5
6.0
4.4
2.50
150
3.5
250
28.0
140
85
±7.0
±4.0
2.54
41
1/2.5
5.50
1.70
1.65
140
100
1.00
Max.
30
5.0
10.0
18.5
6.5
5.1
250
4.0
300
29.5
147
91
±8.5
±5.5
48
5.90
1.80
1.75
115
1.15
Unit
V
mA
μA
V
V
V
V
μA
mA
μA
V
kHz
kHz
kHz
kHz
ms
kΩ
V/V
V
V
V
C
μA
V
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© 2014 Fairchild Semiconductor Corporation
FAN501A • Rev. 1.0.0
5
www.fairchildsemi.com