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KA3882 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. KA3882
Description  SMPS CONTROLLER
Download  5 Pages
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA3882 Datasheet(HTML) 2 Page - Fairchild Semiconductor

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KA3882/3/4/5
SMPS CONTROLLER
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = 15V, RT = 10K
`, CT = 3.3nF, TA = 0Îto + 85Î, Unless otherwise specified)
Characteristic
Symbol
Value
Unit
Supply Voltage
VCC
30
V
Output Current
IO
+ 1
A
Analog Inputs (pin 2, 3)
VI(ANA)
- 0.3 to 6.3
V
Error Amp. Output Sink Current
ISINK(EA)
10
mA
Power Dissipation
PD
1W
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
REFERENCE SECTION
Output Voltage
VREF
TJ = 25
Î, IO = 1mA
4.9
5.0
5.1
V
Line Regulation
LVREF
VCC = 12V to 25V
ï
620
mV
Load Regulation
LVREF
IO = 1mA to 20mA
ï
625
mV
Output Short Circuit
ISC
Ta = 25
Î
ï
- 100
- 180
mA
OSILLATOR SECTION
Initial Accuracy
FOSC
TJ = 25
Î
47
52
57
KHz
Voltage Stability
STV
VCC = 12V to 25V
ï
0.2
1
%
Amplitude
VOSC
VPIN4, Peak to Peak
ï
1.7
ï
V
Discharge Current
IDISCHG
TJ = 25
Î, Pin4 = 2V
7.8
8.3
8.8
mA
CURRENT SENSE SECTION
Gain
GV
(NOTE 2, 3)
2.85
3
3.15
V/V
Maximum Input Signal
VI(MAX)
VPIN1 = 5V(NOTE 2)
0.9
1.0
1.1
V
PSRR
PSRR
VCC = 12V to 25V
(NOTE 1, 2)
ï
70
ï
dB
Input Bias Current
IBIAS
ïï
- 2
-10
uA
Delay to Output
TD
VPIN3 = 0V to 2V (NOTE1)
ï
100
200
ns


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