參數(shù)資料
型號： IP1842J-DESC
廠商： TT electronics Semelab Limited
英文描述： Current Mode Regulating Pulse Width Modulator
中文描述： 電流模式調(diào)節(jié)脈沖寬度調(diào)制器
文件頁數(shù)： 4/6頁
文件大小： 43K
代理商： IP1842J-DESC
IP1842/IP1843
IP2842/IP2843
Min.
Typ.
IP3842
IP3843
Typ.
Parameter
Test Conditions
CURRENT SENSE SECTION
Max.
Min.
Max.
Units
2.85
0.9
3
1
3.15
1.1
60
70
–
2
200
–
10
400
0.1
1.5
13.5
13.5
50
50
0.7
0.4
2.2
13
12
150
150
1.1
14.5
7.8
8.5
7
16
8.4
10
7.6
17.5
9
11.5
8.2
0.3
11
14
34
0.5
15
17
40
30
2.85
0.9
3
1
3.15
1.1
60
70
–
2
200
–
10
400
0.1
1.5
13.5
13.5
50
50
0.7
0.4
2.2
13
12
150
150
1.1
15
7.8
9
7
16
8.4
10
7.6
17
9
11
8.2
0.3
11
14
34
0.5
15
17
40
30
Gain
Maximum Input Signal
Supply Voltage
Rejection
Input Bias Current
Delay to Output
Output Low Level
Output High Level
Rise Time
Fall Time
UVLO Saturation
Upper Threshold
(V
CC
)
Lower Threshold
(V
CC
)
Start
–
up Current
Operating Supply
Current
V
CC
Zener Voltage
See Notes 2,3
V
PIN1
= 4.6V
(Note 2)
V
C
= 12V to 25V
I
SINK
= 20mA
I
SINK
= 200mA
I
SOURCE
= 20mA
I
SOURCE
= 200mA
C
L
= 1nF
C
L
= 1nF
V
CC
= 6V
UNDER–VOLTAGE LOCKOUT SECTION
T
J
= 25
°
C
T
J
= 25
°
C
I
L
= 1mA
1842 Series
1843 Series
1842 Series
1843 Series
V
PIN2
= 0V
V
PIN3
= 0V
I
CC
= 25mA
1842 Series
1843 Series
V/V
V
dB
m
A
ns
V
V
ns
V
V
V
mA
mA
V
NOTES
1. Test Conditions unless otherwise stated:
V
CC
= 15V* , R
T
= 10k
W
, C
T
= 3.3nF , f = 52kHz.
*Adjust V
CC
above start threshold before setting at
required level.
All specifications apply over the full operating temperature
range unless otherwise stated.
(See Ordering Information for further details).
2. Parameter measured at trip point of latch with
V
PIN2
= 0V
3. Gain defined as:
A =
D
V
PIN3
0
￡
V
PIN3
￡
0.8
D
V
PIN1
IP1842 SERIES
IP1843 SERIES
Prelim.3/00
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
http://www.semelab.co.uk
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