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參數(shù)資料
| 型號(hào)： | IP1843J-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(yè)數(shù)： | 2/6頁(yè) |
| 文件大?。?/td> | 43K |
| 代理商： | IP1843J-DESC |
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.ukDESCRIPTION
The IP1842 and IP1843 series of switching regulator control circuits contain all the functions necessary to
implement off
–
line, current mode switching regulators, using a minimum number of external parts. Functions
included are voltage reference, error amplifier, current sense comparator, oscillator, totem pole output driver and
under-voltage lockout circuitry.
Although pin compatible with the UC1842 and 1843 series, SEMELAB has incorporated several improvements in
the IP1842 and IP1843 series allowing tighter and more complete specification of electrical performance.
BLOCK DIAGRAM
Values in brackets are for IP1843 series.
3.6V
ERROR
AMP
OSCILLATOR
2R
R
1V
R
S
PWM
LATCH
CURRENT
SENSE
COMPARATOR
16V
(8.4V)
6V
(0.5V)
2.5V
UNDER
–
VOLTAGE
LOCKOUT
ENABLE
REFERENCE
REGULATOR
5V
INTERNAL
BIAS
34V
REG
R
S
V STATUS
LATCH
OUTPUT
V
REF
C
OMP
G
ND
V
CC
I
SENSE
V
FB
/C
R
T
T
POWER
GROUND
V
C
PIN NUMBERS
1st Number
2nd Number
–
N, J and 8 Pin D Packages
–
14 Pin D Package.
3/5
5/9
7/12
2/3
1/1
4/7
6/10
7/11
5/8
8/14
V
CC
I
O
Supply Voltage
1
Output Current
Analog Inputs
Error Amp Output Sink Current
(pins 2 and 3)
IP1842 , IP1843
IP2842 , IP2843
IP3842 , IP3843
Operating Ambient Temperature Range
￡
30V
0 to ±200mA
–
0.3V to 3V
0 to 2mA
–
55 to 125
°
C
–
25 to 85
°
C
0 to 70
°
C
Notes:
1.
Lower limit set by under voltage lockout specification.
RECOMMENDED OPERATING CONDITIONS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IP2843 | GT 38C 38#12 SKT PLUG |
| IP1844A | CURRENT MODE REGULATING PULSE WIDTH MODULATORS |
| IP3844A | CURRENT MODE REGULATING PULSE WIDTH MODULATORS |
| IP3845A | CURRENT MODE REGULATING PULSE WIDTH MODULATORS |
| IP1845A | RESISTOR-METAL FILM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IP1844 | 制造商:SEME-LAB 制造商全稱:Seme LAB 功能描述:CURRENT MODE REGULATING PULSE WIDTH MODULATORS |
| IP1844A | 制造商:SEME-LAB 制造商全稱:Seme LAB 功能描述:CURRENT MODE REGULATING PULSE WIDTH MODULATORS |
| IP1844AJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| IP1844J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| IP1844J/883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
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