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CM3843CS データシート(PDF) 5 Page - List of Unclassifed Manufacturers

部品番号 CM3843CS
部品情報  CURRENT MODE PWM CONTROLLER
PDF  12 Pages
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メーカー  ETC [List of Unclassifed Manufacturers]
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CM3843CS データシート(HTML) 5 Page - List of Unclassifed Manufacturers

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CM3842/3843
CURRENT MODE PWM CONTROLLER
2001/06/27
Advanced
Champion Microelectronic Corporation
Page 4
RECOMMENDED OPERATING CONDITIONS
Recommended Operating
Parameter
Symbol
Min.
Typ.
Max.
Units
Supply Voltage
VCC / VC
30
V
VI,RT/CT
Input Voltage
VI,ISENSE/VFB
0
5.5
V
Output Voltage
VO, Output
0
30
V
Supply Current
ICC
25
mA
Average Output Current
IO
200
mA
Reference Output Current
IO(REF)
-20
mA
Timing Capacitor
CT
1
nF
Oscillator Frequency
fOSC
100
500
KHz
Operating Free-air Temperature
TA
0
70
OC
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over the operating ambient temperature for CM384X with 0
OC
≤
TA
≤70 OC; VCC = 15V(note 7); RT = 10K;CT = 3.3nF. Low duty cycle pulse testing techniques are used which
maintains junction and case temperatures equal to the ambient temperature.
CM384X
Parameter
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Reference Section
Reference output Voltage
VREF
TJ = 25
OC, IREF = 1mA
4.9
5.0
5.1
V
Line Regulation
12V
≤ VCC ≤ 25V,TJ = 25 OC
6
20
mV
Load Regulation
1mA
≤ IREF ≤ 20mA
6
25
mV
Short Ciruit Output Current
ISC
TJ = 25
OC
-30
-100
-180
mA
Oscillator Section
Oscillation Frequency
f
TJ = 25
OC
47
52
57
KHz
Frequency Change with Voltage
12V
≤ VCC ≤ 25V
0.2
1.0
%
Frequency Change with Temperature
(note 8)
TMIN
≤ TA ≤ TMAX
5
%
Peak-to-peak Amplitude At RT/CT
VOSC
1.7
V
Current Sense Section
Gain (note 9 & 10)
AVOL
2.85
3.00
3.15
V/V
Maximum Input Signal (note 9)
VI(MAX)
COMP = 5V
0.9
1.0
1.1
V
Power Supply Rejection Ratio (note 9)
PSRR
12V
≤ VCC ≤ 25V (note 9)
70
dB
Input Bias Current
IBIAS
-3.0
-10
µA



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