KA3843AC View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
KA3843AC Datasheet PDF : 6 Pages
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KA3843AC
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
Supply voltage
VCC
30
V
Output current
IO
+1
A
Analog inputs (pin2, 3)
VI(ANA)
-0.3 to 6.3
V
Error amp. output sink current
ISINK(EA)
10
mA
Power dissipation
PD
1
W
Electrical Characteristics
(VCC = 15V, RT = 10KW, CT = 3.3nF, TA = 0°C to +70°C ,Unless otherwise specified)
Parameter
REFERENCE SECTION
Output voltage
Line regulation
Load regulation
Output short circuit
OSILLATOR SECTION
Initial accuracy
Voltage stability
Amplitude
Discharge current
CURRENT SENSE SECTION
Gain
Maximum input signal
PSRR
Input bias current
Delay to output
Symbol
Conditions
VREF
RLine
RLOAD
ISC
TJ = 25°C, IO = 1mA
VCC = 12V to 25V
IO = 1mA to 20mA
Ta = 25°C
FOSC
STV
VOSC
IDISCHG
TJ = 25°C
VCC = 12V to 25V
VPIN4, peak to peak
TJ = 25°C
GV
VI(MAX)
PSRR
IBIAS
TD
(Note2, 3)
VPIN1 = 5V(Note2)
VCC = 12V to 25V (Note1, 2)
VSENSE=0V
VPIN3 = 0 V to 2V (Note1)
Min. Typ. Max. Unit
4.9 5.0 5.1 V
-
6 20 mV
-
6 25 mV
- -100 -180 mA
47 52 57 kHz
- 0.2 1 %
- 1.7 -
V
7.8 8.3 8.8 mA
2.85 3 3.15 V/V
0.9 1.0 1.1 V
- 70 - dB
- -2 -10 uA
- 100 200 ns
Notes:
1. These parameters, although guaranteed, are not 100% tested in production.
2. Parameter measured at trip point of latch with VFB = 0V.
3.
Gain defined as:
GV
=
--∆----V----C----O----M----P--
∆VSENSE
;O
≤
V
S
E
N
S
E
≤
0.8
V
2
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