FL7930CMX Просмотр технического описания (PDF) - Fairchild Semiconductor
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FL7930CMX Datasheet PDF : 20 Pages
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Electrical Characteristics
VCC = 14V, TA = -40°C to +125°C, unless otherwise specified.
Symbol
Parameter
Condition
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=3mA
IDET= -3mA
VZCD=1V~5V
TA=25°C
TA=25°C
dV/dt=-1V/100ns,
5V to 0V
1.35
0.05
5.5
0
-1.0
100
Output Section
VOH Output Voltage High
VOL
tRISE
tFALL
Output Voltage Low
Rising Time(4)
Falling Time(4)
VO,MAX Maximum Output Voltage
VO,UVLO Output Voltage with UVLO Activated
IO=-100mA, TA=25°C
IO=200mA, TA=25°C
CIN=1nF
CIN=1nF
VCC=20V, IO=100µA
VCC=5V, IO=100µA
9.2
11.5
Restart / Maximum Switching Frequency Limit Section
tRST Restart Timer Delay
50
fMAX Maximum Switching Frequency(4)
250
RDY Pin (FL7930C Only)
IRDY,SK Output Sink Current
VRDY,SAT Output Saturation Voltage
IRDY,LK Output Leakage Current
1
IRDY,SK = 2mA
Output High Impedance
Soft-Start Timer Section
tSS
Internal Soft-Soft(4)
3
Protections
VOVP,INV OVP Threshold Voltage at INV Pin
HYOVP,INV OVP Hysteresis at INV Pin
VOVP,OVP
OVP Threshold Voltage at OVP Pin
(FL7930B Only)
TA=25°C
TA=25°C
TA=25°C
2.620
0.120
2.740
HYOVP,OVP
OVP Hysteresis at OVP Pin
(FL7930B Only)
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
2
320
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
4
500
1
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
mA
mV
µA
ms
V
V
V
V
V
V
°C
°C
© 2011 Fairchild Semiconductor Corporation
FL7930 • Rev. 1.0.0
7
www.fairchildsemi.com
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