AMC3842BM 데이터 시트보기 (PDF) - ADDtek Corp
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AMC3842BM Datasheet PDF : 11 Pages
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AMC3842B/43B/44B/45B
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Recommended Operating Conditions
Min.
Typ.
Max.
Supply Voltage
VCC / VC
30
Input Voltage
Output Voltage
Supply Current
VI,RT/CT
0
5.5
VI,ISENSE/VFB
VO, Output
0
30
ICC
25
Average Output Current
Reference Output Current
Timing Capacitor
IO
200
IO(REF)
-20
CT
1
Oscillator Frequency
fOSC
100
500
Operating Free-air Temperature
TA
0
70
Units
V
V
V
mA
mA
mA
nF
KHz
OC
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over the operating ambient temperature for AMC384XB with
0OC ≤ 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.
Parameter
Symbol
Test Conditions
Reference Section
Reference output Voltage
VREF TJ = 25 OC, IREF = 1mA
Line Regulation
Load Regulation
Short Ciruit Output Current
Oscillator Section
12V ≤ VCC ≤ 25V,TJ = 25 OC
1mA ≤ IREF ≤ 20mA
ISC TJ = 25 OC
Oscillation Frequency
Frequency Change with Voltage
Frequency Change with Temperature
(note 8)
f TJ = 25 OC
12V ≤ VCC ≤ 25V
TMIN ≤ TA ≤ TMAX
Peak-to-peak Amplitude At RT/CT
VOSC
Current Sense Section
Gain (note 9 & 10)
Maximum Input Signal (note 9)
AVOL
VI(MAX)
Power Supply Rejection Ratio (note 9) PSRR
Input Bias Current
IBIAS
COMP = 5V
12V ≤ VCC ≤ 25V (note 9)
AMC384XB
Units
Min. Typ. Max.
4.9 5.0 5.1 V
6
20 mV
6
25 mV
-30 -100 -180 mA
47 52 57 KHz
0.2 1.0 %
5
%
1.7
V
2.85 3.00 3.15 V/V
0.9 1.0 1.1 V
70
dB
-3.0 -10 µA
Copyright © 2006 ADDtek Corp.
4
DD019_F -- OCTOBER 2006
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