FAN7554 Ver la hoja de datos (PDF) - Fairchild Semiconductor
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componentes Descripción
Fabricante
FAN7554 Datasheet PDF : 22 Pages
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FAN7554
Electrical Characteristics
(Ta = 25°C, Vcc=16V, Rt=10kΩ, Ct=3.3nF unless otherwise specified)
Parameter
< REFERENCE SECTION >
Reference Output Voltage
Line Regulation
Load Regulation
Short Circuit Output Current
< OSCILLATOR SECTION >
Oscillation Frequency
Frequency Change with Vcc
Ramp High Voltage
Ramp Low Voltage
Discharge Current
< PWM SECTION >
Sense Threshold Voltage
Feedback Threshold Voltage
Feedback Source Current
Max. Duty Cycle
Min. Duty Cycle
< PROTECTION SECTION >
Shutdown Delay Current
Shutdown Feedback Voltage
Over Current Protection
Over Voltage Protection
< ON/OFF CONTROL SECTION >
Off Mode Sink Current
Off Threshold Voltage
< SOFT-START SECTION >
Soft Start Current
Soft Start Limit Voltage
<OUTPUT SECTION>
Low Output Voltage1
High Output Voltage1
Low Output Voltage2
High Output Voltage2
Rising Time (Note1)
Falling Time (Note1)
<UVLO SECTION>
Start Threshold Voltage
Min. Operating Voltage
Symbol
VREF
∆VREF1
∆VREF2
ISC
FOSC
∆FOSC1
VRH
VRL
Idisch
VTH(IS)
VTH(FB)
IFB
D(MAX)
D(MIN)
ISD
VSD
VOC
VOVP
ISINK
VOFF
IS/S
VLIM(S/S)
VOL1
VOH1
VOL2
VOH2
tR
tF
VTH(ST)
VOPR(M)
Conditions
Tj =25°C , Iref =1mA
Vcc =12V ~ 25V
Iref =1mA ~ 20mA
Tj = 25°C
Tj = 25°C
Vcc = 12V ~ 25V
-
-
VRT/CT = 3.3V
VFB = 5V
VIS = 0V
VFB = 0V, VS/S = 5V
-
-
4V ≤ VFB ≤ VSD
VFB > 5V
VIS > 1.5V, ton > 500nS
-
VFB < VTH(FB), VS/S = 5V
VFB < VTH(FB)
VFB = 5V, VS/S = 0V
Vcc = 16V
VCC = 18V, IO = 50mA
VCC = 18V, IO = -50mA
VCC = 18V, IO = 200mA
Vcc = 18V, Io = -200mA
Tj = 25°C, CL = 1nF
Tj = 25°C, CL = 1nF
-
-
Min. Typ. Max. Unit
4.90 5.00 5.10 V
-
6
20 mV
-
6
25 mV
-
0.1 0.18 A
45 50 55 kHz
- 0.05 1.0 %
-
2.8
-
V
-
1.2
-
V
6.1
-
9.4 mA
0.8 1.0 1.2 V
0.2 0.3 0.4 V
-
1.0
-
mA
92
95
98
%
-
-
0
%
3.5
5
6.5 uA
5.4
6
6.6
V
1.6
2
2.4
V
30 34 38
V
-
4
-
mA
1.2 1.5 1.8 V
-
1.1
-
mA
-
5.2
-
V
- 0.15 0.4 V
13 15 17
V
-
1.5 2.5
V
12 14 16
V
-
80
-
ns
-
40
-
ns
13.2 15 16.2 V
8.2
9 10.2 V
4
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