參數(shù)資料
型號(hào): AV3842B
廠商: Avic Technology
英文描述: LINEAR INTEGRATED CIRCUIT
中文描述: 線性集成電路
文件頁(yè)數(shù): 3/6頁(yè)
文件大?。?/td> 397K
代理商: AV3842B
QW-R103-012,A
PARAMETER
SYMBOL
Vth
TEST CONDITIONS
(note 3)
MIN
0.9
TYP
1.0
MAX
1.1
UNIT
V
Maximum Current Sense Input
Threshold
Power Supply Rejection Ratio
Input Bias Current
Propagation Delay
PSRR
I
IB
tPLH(In/O
ut)
12<=Vcc<=25V (note 3)
Current Sense Input to Output
70
-2
150
dB
μ
A
ns
-10
300
Output Section
Output Low Voltage
Output High Level
Output Voltage with UVLO
Activated
Output Voltage Rise Time
Output Voltage Fall Time
Under-Voltage Lockout Section
Startup Threshold
Min. Operating Voltage After
Turn-on(Vcc)
PWM Section
Maximum Duty Cycle
Minimum Duty Cycle
Total Device
Power Startup Supply Current
V
OL
V
OH
V
OL
(UVLO)
tr
t
f
Isink=20mA
Isink=200mA
Isource=20mA
Isource=200mA
Vcc=6.0V,Isink=1.0mA
0.1
1.6
13.5
13.4
0.1
0.4
2.2
1.1
V
V
V
V
V
13
12
Tj=25
°
C,C
L
=1nF
Tj=25
°
C,C
L
=1nF
50
50
16
8.4
10
150
150
17.5
9
11.5
ns
ns
V
V
V
Vth
UTC UC3842B
UTC UC3843B
UTC3842B
14.5
7.8
8.5
V
CC(min)
UTC3843B
7.0
94
7.6
96
0.3
8.2
0
0.5
V
%
%
mA
DC
(MAX)
DC
(MIN)
Icc+Ic
Vcc=6.5V for UC3843B
Vcc=14V for UC3842B
Note2
Icc=25mA
Power Operating Supply Current
Power Supply Zener Voltage
Note 1:Maximum Package power dissipation limits must be observed.
Note 2:Adject Vcc above the Startup threshold before setting to 15V.
Note 3:This parameter is measured at the latch trip point with VFB=0V.
Note 4:Comparator gain is defined as :
Icc+Ic
Vz
12
36
17
mA
V
30
V Output Compensation
AV
V Current Sense Input
@vic
AV
3842B / 3843B
LINEAR INTEGRATED CIRCUIT
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