FAN7528 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN7528 Datasheet PDF : 21 Pages
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Electrical Characteristics
VCC = 14V, TA = -40°C~125°C, unless otherwise specified.
Symbol
Parameter
Condition
Under-Voltage Lockout Section
VTH(start)
VTH(stop)
HY(uvlo)
Start Threshold Voltage
Stop Threshold Voltage
UVLO Hysteresis
VCC increasing
VCC decreasing
Supply Current Section
IST
Start-up Supply Current
ICC
Operating Supply Current
IDCC
Dynamic Operating Supply Current
ICC(dis) Operating Current at Disable
Error Amplifier Section
VCC = VTH(start) – 0.2V
Output no switching
50kHz, CL=1nF
Vinv = 0V
Vref1
Voltage Feedback Input Threshold1 TA = 25°C
Vref2
ΔVref1
ΔVref3
Ib(ea)
Isource
Isink
Veao(H)
Veao(Z)
gm
Voltage Feedback Input Threshold2
Line Regulation
Temperature Stability of Vref1(1)
Input Bias Current
Output Source Current
Output Sink Current
Output Upper Clamp Voltage
Zero Duty Cycle Output Voltage
Transconductance(1)
VTH(in)
VTH(reset)
Output Voltage Selection Threshold
Output Voltage Reset Threshold(1)
Maximum On-Time Section
Vmot
Maximum On-time Voltage
tON-max Maximum On-time Programming
Current Sense Section
VCS(limit)
Current Sense Input Threshold
Voltage Limit
Ib(cs)
td(cs)
Input Bias Current
Current Sense Delay to Output(1)
VCC = 14V~23V
Vinv = 1V~4V
Vinv = 2.4V
Vinv = 2.6V
TA = 25°C
Rmot = 13.7k
Rmot = 13.7k, TA = 25°C
VCS = 0V~1V
Min. Typ. Max. Unit
11
12
13
V
8.0
8.5
9.0
V
3.0
3.5
4.0
V
40
70
μA
1.5
3.0
mA
2.5
4.0
mA
40
65
90
μA
2.465
2.435
1.45
-0.5
4.5
0.7
90
1.24
3.0
2.500
2.500
1.50
0.1
20
-12
12
5.5
1.0
115
1.30
4.5
2.535
2.565
1.55
10.0
0.5
6.5
1.3
140
1.36
6.0
V
V
V
mV
mV
μA
μA
μA
V
V
μmho
V
V
0.95 1.00 1.05
V
18.0 22.5 27.0 μs
0.7
0.8
0.9
V
-1.0 -0.1 1.0
μA
350 500
ns
© 2005 Fairchild Semiconductor Corporation
FAN7528 Rev. 1.0.6
5
www.fairchildsemi.com
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