FL7930B Ver la hoja de datos (PDF) - ON Semiconductor
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FL7930B Datasheet PDF : 25 Pages
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Electrical Characteristics
VCC = 14 V and TA = -40°C~+125°C, unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Zero-Current Detect Section
VZCD
HYZCD
Input Voltage Threshold(4)
Detect Hysteresis(4)
VCLAMPH Input High Clamp Voltage
VCLAMPL Input Low Clamp Voltage
IZCD,BS
IZCD,SR
IZCD,SK
Input Bias Current
Source Current Capability(4)
Sink Current Capability(4)
tZCD,D
Maximum Delay From ZCD to Output
Turn-On(4)
IDET=3 mA
IDET=-3 mA
VZCD=1 V~5 V
TA=25°C
TA=25°C
dV/dt=-1 V/100 ns, from
5 V to 0 V
1.35
0.05
5.5
0
-1.0
100
Output Section
VOH Output Voltage High
IO=-100 mA, TA=25°C
VOL
tRISE
tFALL
Output Voltage Low
Rising Time(4)
Falling Time(4)
IO=200 mA, TA=25°C
CIN=1 nF
CIN=1 nF
VO,MAX Maximum Output Voltage
VCC=20 V, IO=100 µA
VO,UVLO Output Voltage with UVLO Activated
VCC=5 V, IO=100 µA
Restart / Maximum Switching Frequency Limit Section
9.2
11.5
tRST Restart Timer Delay
50
fMAX Maximum Switching Frequency(4)
250
Soft-Start Timer Section
tSS Internal Soft-Soft(4)
3
Protections
VOVP,INV OVP Threshold Voltage at INV Pin
TA=25°C
2.620
HYOVP,INV OVP Hysteresis at INV Pin
TA=25°C
0.120
VOVP,OVP OVP Threshold Voltage at OVP Pin
TA=25°C
2.740
HYOVP,OVP OVP Hysteresis at OVP Pin
TA=25°C
VEN Enable Threshold Voltage
0.40
HYEN
TSD
THYS
Enable Hysteresis
Thermal Shutdown Temperature(4)
Hysteresis Temperature of TSD(4)
0.05
125
Note:
4. These parameters, although guaranteed by design, are not production tested.
Typ.
1.50
0.10
6.2
0.65
-0.1
11.0
1.0
50
50
13.0
150
300
5
2.675
0.175
2.845
0.345
0.45
0.10
140
60
Max.
1.65
0.15
7.5
1.00
1.0
-4
10
200
12.8
2.5
100
100
14.5
1
300
350
7
2.730
0.230
2.960
0.50
0.15
155
Unit
V
V
V
V
µA
mA
mA
ns
V
V
ns
ns
V
V
µs
kHz
ms
V
V
V
V
V
V
°C
°C
© 2010 Fairchild Semiconductor Corporation
FL7930B • Rev. 1.0.4
7
www.fairchildsemi.com
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