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AMC384XBDF 数据表(PDF) 5 Page - List of Unclassifed Manufacturers

部件名 AMC384XBDF
功能描述  CURRENT MODE PWM CONTROLLER
PDF  10 Pages
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制造商  ETC [List of Unclassifed Manufacturers]
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标志 ETC - List of Unclassifed Manufacturers

AMC384XBDF 数据表(HTML) 5 Page - List of Unclassifed Manufacturers

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AMC DOC. #: AMC3842B_C (LF)
AMC3842B/43B
March
2004
CURRENT MODE PWM CONTROLLER
Copyright
© 2002, ADD Microtech Corp.
5
www.addmtek.com
ELECTRICAL CHARACTERISTICS (Continued)
Error Amplifier Section
Input Bias Current
IBIAS
-0.1
-2
µA
Input Voltage
VI(EA)
COMP = 2.5V
2.42
2.50
2.58
V
Open Loop Voltage Gain
GVO
2V
≤ V
O ≤ 4V
65
90
dB
Unity Gain Bandwidth (note 7)
UGBW
TJ = 25
OC
0.7
1
MHz
Power Supply Rejection Ratio
PSRR
12V
≤ V
CC ≤ 25V
60
70
dB
Output Sink Current
ISINK
VFB = 2.7V, COMP = 1.1V
2
7
mA
Output Source Current
ISOURCE
VFB = 2.3V, COMP = 5.0V
-0.5
-1.0
mA
High Output Voltage
VOH
VFB = 2.3V, RL = 15KΩ to GND
5
6
V
Low Output Voltage
VOL
VFB = 2.7V, RL = 15KΩ to VREF
0.7
1.1
V
Output Section
ISINK = 20mA
0.1
0.4
Output Low Level
VOL
ISINK = 200mA
1.4
2.2
V
ISOURCE = 20mA
13
13.5
Output High Level
VOH
ISOURCE = 200mA
12
13.0
V
Rise Time (note 7)
tr
TJ = 25
OC, CL = 1nF
50
150
ns
Fall Time (note 7)
tf
TJ = 25
OC, CL = 1nF
50
150
ns
Under-Voltage Lockout Section
AMC3842B
14.5
16.0
17.5
Start Threshold
VTH(ST)
AMC3843B
7.8
8.4
9.0
V
AMC3842B
8.5
10
11.5
Min. Operating Voltage
AMC3843B
7.0
7.6
8.2
V
PWM Section
Maximum Duty Cycle
AMC3842B/43B
94
97
100
%
Total Standby Current
AMC3842B
0.2
0.35
Startup Current
AMC3843B
0.5
1.0
mA
Operating Supply Current
ICC
VFB = ISENSE = 0V
14
17
mA
Zener Voltage
VZ
ICC = 25mA
30
35
V
note 6:
Adjust VCC above the start threshold before setting at 15V
note 7:
These parameters, although guaranteed, are not 100% tested in production prior to shipment
note 8:
Parameters are measured at trip point of latch with VFB = 2V
note 9:
Gain is measured between ISENSE and COMP with the input changing from 0V to 0.8V



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