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參數(shù)資料
| 型號： | IP3843AN |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 69K |
| 代理商： | IP3843AN |
* 1844A and 1845A series only.
Values in brackets are for IP1845 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
PIN NUMBERS
1st Number
2nd Number
– N, J and 8 Pin D Packages
– 14 Pin D Package.
C
OMP
G
ND
V
CC
I
SENSE
V
FB
/C
R
T
T
OUTPUT
POWER
GROUND
V
REF
V
C
3/5
5/9
7/12
2/3
1/1
4/7
6/10
7/11
5/8
8/14
TOGGLE
FLIP
FLOP *
T
Q
LAB
SEME
IP1842A SERIES
IP1843A SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 2/95
V
CC
I
O
Supply Voltage
1
Output Current
Analog Inputs
Error Amp Output Sink Current
(pins 2 and 3)
IP1842A , IP1843A
IP2842A , IP2843A
IP3842A , IP3843A
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.
DESCRIPTION
The IP1842A/IP1843A 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 standard IP1842/3 parts these devices offer improved performance in several
areas. They also offer tighter specification and improved performance over the IP and UC1842/3 series, whilst
retaining complete compatibility.
BLOCK DIAGRAM
RECOMMENDED OPERATING CONDITIONS
相關PDF資料 |
PDF描述 |
|---|---|
| IP3843D14 | Analog IC |
| IP3843D-14 | Current-Mode SMPS Controller |
| IP3843N | Current-Mode SMPS Controller |
| IP3844AD | Analog IC |
| IP3844AD14 | Analog IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IP3843D14 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| IP3843D-14 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| IP3843N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| IP3844 | 制造商:SEME-LAB 制造商全稱:Seme LAB 功能描述:CURRENT MODE REGULATING PULSE WIDTH MODULATORS |
| IP3844A | 制造商:SEME-LAB 制造商全稱:Seme LAB 功能描述:CURRENT MODE REGULATING PULSE WIDTH MODULATORS |
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