參數(shù)資料
型號(hào)： KA3842A
廠商： 永盛國際集團(tuán)
英文描述： Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
中文描述： 線性集成電路（電流模式PWM控制器）
文件頁數(shù)： 2/5頁
文件大?。?/td> 153K
代理商： KA3842A
Electrical characteristics (*V
CC
= 15V, R
T
= 10k
, C
T
= 3.3nF, T
A
= 0
0
C to + 70
0
C, unless
otherwise specified)
Characteristics
Reference S ection
Reference Output Voltege
Line Regulation
Load Regulation
Short Circit Output Current
Oscillator S ection
Oscillation Freguency
Frequency Change with
Voltage
Oscillator Amplitude
Error Amplifier S ection
Input Bias Current
Input Voltage
Open Loop Voltage Gain
Power Supply Rejection Ratio
Output Sink Current
Output Source Current
High Output Voltage
Low Output Voltage
Current S ense S ection
Gain
Maximum Input Signal
Power Supply Rejection Ratio
Input Bias Current
Output S ection
Low Output Voltage
S ymbol
Test Condition
Min
Typ
Max
Unit
V
REF
V
REF
V
REF
I
SC
T
J
= 25
°
C, I
REF
= 1 mA
12V
≤
V
CC
≤
25 V
1 mA
≤
I
REF
≤
20mA
T
A
= 25
°
C
4.9
5.0
6.0
6.0
-100
5.1
20
25
-180
V
mV
mA
f
T
J
= 25
°
C
12V
≤
V
CC
≤
25 V
47
52
0.05
57
1.0
KHz
%
f/
V
CCF
V
(OSC)
1.6
V
p-p
I
BIAS
V
I(E.A)
G
VO
PSRR
I
SINK
I
SOURCE
V
OH
V
OL
-0.1
2.5
90
70
7
-1.0
6.0
0.8
-2
μ
A
V
dB
V
1
= 2.5V
2V
≤
V0
≤
4V
12V
≤
V
CC
≤
25 V
V
2
= 2.7V, V
1
= 1.1V
V
2
= 2.3V, V
1
= 5V
V
2
= 2.3V, R
L
= 15K
to GND
V
2
= 2.7V, R
L
= 15K
to PIN 8
2.42
65
60
2
-0.5
5.0
2.58
mA
mA
V
1.1
G
V
(Note 1 & 2)
V
1
= 5V (Note1)
12V
≤
V
CC
≤
25 V (Note 1)
2.85
0.9
3.0
1.0
70
-3.0
3.15
1.1
V/V
V
dB
μ
A
V
I(MAX)
PSRR
I
BIAS
-10
V
OL
I
SINK
= 20 mA
I
SINK
= 200 mA
I
SINK
= 20 mA
I
SINK
= 200 mA
T
J
= 25
°
C, C
L
= 1nF (Note 3)
T
J
= 25
°
C, C
L
= 1nF (Note 3)
0.08
1.4
13.5
13.0
45
35
0.4
2.2
V
High Output Voltage
V
OH
13
12
Rise Time
Fall Time
Under
Voltage Lockout S ection
Start Theshold
t
R
t
F
150
150
nS
V
TH(ST)
14.5
16.0
17.5
V
Min. Operating Voltage
(After Turn On)
PWM S ection
Max. Duty Cycle
V
OPR(min)
8.5
10
11.5
V
D
(MAX)
95
97
100
%
Min. Duty Cycle
Total S tandby Current
Start
Up Current
D
(MAX)
0
I
ST
0.17
0.3
mA
Operating Supply Current
Zener Voltage
I
CC (OPR)
V
Z
V
3
= V
2
= 0V
14
38
17
30
V
* Adjust V
CC
above the start threshold before setting at 15V
Note 1: Parameter measured at trip point of lath with V
2
=0
Note 2: Gain defined as A=
V
1
/
V
3
; 0
≤
V
3
≤
0.8V
Note 3: These parameters, although guaranteed, are not 100% tested in production.
2
KA3842A/KA3842AM
相關(guān)PDF資料
PDF描述
KA3842AM Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842AMM Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842AMN Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842AN Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842AC SMPS Controller
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KA3842ACDSTF 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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