AMC3843B ETC, AMC3843B Datasheet - Page 4

• Manufacturer Part Number: AMC3843B
• Description: (AMC3842B / AMC3843B) CURRENT MODE PWM CONTROLLER
• Manufacturer: ETC

AMC DOC. #: AMC3842B_C (LF)
March 2004
Copyright © 2002, ADD Microtech Corp.
Unless otherwise specified, these specifications apply over the operating ambient temperature for AMC384XB with
0
maintains junction and case temperatures equal to the ambient temperature.
Reference Section
Oscillator Section
Current Sense Section
O
Supply Voltage
Input Voltage
Output Voltage
Supply Current
Average Output Current
Reference Output Current
Timing Capacitor
Oscillator Frequency
Operating Free-air Temperature
Reference output Voltage
Line Regulation
Load Regulation
Short Ciruit Output Current
Oscillation Frequency
Frequency Change with Voltage
Frequency Change with Temperature
(note 7)
Peak-to-peak Amplitude At R
Gain (note 8 & 9)
Maximum Input Signal (note 8)
Power Supply Rejection Ratio (note 8) PSRR
Input Bias Current
C ≤ TA ≤70
O
Parameter
C; V
CC
Parameter
= 15V(note 6); R
T
RECOMMENDED OPERATING CONDITIONS
/C
T
ELECTRICAL CHARACTERISTICS
T
Symbol
= 10K;C
V
A
V
V
I
I(MAX)
I
BIAS
VOL
REF
SC
OSC
f
T
T
12V ≤ V
1mA ≤ I
T
T
12V ≤ V
T
J
J
J
MIN
= 3.3nF. Low duty cycle pulse testing techniques are used which
COMP = 5V
12V ≤ V
= 25
= 25
= 25
V
V
I
V
≤ T
V
,I
Symbol
O
I
4
I
SENSE
CC
, Output
,R
O(REF)
O
O
O
f
I
T
REF
C
C, I
C
C
OSC
CC
CC
I
A
CC
Test Conditions
O
/ V
T
A
T
CC
≤ T
/C
≤ 25V,T
≤ 25V
/V
≤ 20mA
REF
C
≤ 25V (note 8)
T
C
MAX
FB
= 1mA
URRENT
Recommended Operating Conditions
J
= 25
Min.
0
0
1
0
O
C
M
ODE
AMC3842B/43B
Typ.
100
2.85
Min.
0.9
-30
4.9
PWM C
AMC384XB
3.00
-3.0
Typ.
-100
1.0
70
5.0
0.2
1.7
52
6
6
5
Max.
200
500
-20
5.5
30
30
25
70
ONTROLLER
www.addmtek.com
Max.
-180
3.15
-10
1.1
5.1
1.0
20
25
Units
KHz
Units
mA
mA
mA
KHz
V/V
nF
O
mV
mV
mA
V
V
V
µA
dB
C
%
%
V
V
V