FAN6862_10 Datasheet, PDF (5/16 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller

Electrical Characteristics
VDD = 15V and TA = 25°C unless otherwise noted.
Symbol
Parameter
Test Condition
VDD Section
VDD-OP
VDD-ON
VDD-OFF
VDD-LH
IDD-ST
IDD-OP
IDD-BM
VDD-OVP
tD-VDDOVP
IDD-LH
Continuously Operating Voltage
Turn-on Threshold Voltage
Turn-off Voltage
Threshold voltage for Latch-Off release
Startup Current
Normal Operating Supply Current
Green-Mode Operating Supply Current
VDD Over-Voltage Protection
VDD OVP Debounce Time
Latch-Off Holding Current
VDD-ON–0.16V
CL=1nF
GATE open, VFB=VFB-G
VDD=5V
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 Time
Current Sense Section
tPD
Delay to Output
tLEB
Leading-Edge Blanking Time
VSTHFL Flat Threshold Voltage for Current Limit
VSTHVA Valley Threshold Voltage for Current Limit
VSLOPE Slope Compensation
tSOFT-START Period During Startup time
Oscillator Section
Duty>51%
Duty=0%
Duty=DCYMAX
Center
Frequency
VFB>VFB-N
fOSC
Normal PWM Frequency _{Hopping Range VFB≥VFB-N}
thop-1
thop-3
fOSC-G
VFB-N
Hopping Range
Hopping Period 1
Hopping Period 3
Green Mode Minimum Frequency
FB Threshold Voltage For Frequency
Reduction
VFB=VFB-G
VFB≥VFB-N
VFB=VFB-G
VFB-G
VFB-ZDC
fDV
fDT
FB Voltage at fOSC-G
FB Threshold Voltage for Zero Duty
Frequency Variation vs. VDD Deviation
Frequency Variation vs. Temperature
Deviation
VDD=11.5V to 20V
TA= -40 to +105°C
Min. Typ. Max. Unit
24 V
15
16 17 V
7.5
8.5 9.5 V
3
4
5
V
8
30 μA
3
4 mA
2.5 mA
24
25 26 V
30 50 μs
40 65 μA
1/4.0
5.0
4.3
53
1/3.5 1/3.0 V/V
5.5
kΩ
5.2 5.4 V
4.6 4.9 V
56 60 ms
100 250 ns
270
360
ns
0.5
V
0.44
V
0.273
V
4
ms
62
65 68
±4.2
kHz
±2.9
4.4
ms
11.5
ms
22.5
kHz
2.2
V
2.1
V
1.7
V
0
0.02 2.00 %
2
%
Continued on the following page…
© 2009 Fairchild Semiconductor Corporation
FAN6862 • Rev. 1.0.2
5
www.fairchildsemi.com