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IP2844 PDF预览

IP2844

更新时间: 2024-02-15 10:55:37
品牌 Logo 应用领域
SEME-LAB /
页数 文件大小 规格书
6页 61K
描述
CURRENT MODE REGULATING PULSE WIDTH MODULATORS

IP2844 技术参数

生命周期:Transferred包装说明:,
Reach Compliance Code:unknown风险等级:5.77
Is Samacsys:NBase Number Matches:1

IP2844 数据手册

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IP1844 SERIES  
IP1845 SERIES  
SEME  
LAB  
TOP VIEW  
CURRENT MODE  
1
2
3
4
8
7
6
5
VREF  
COMP  
VCC  
VFB  
REGULATING  
PULSE WIDTH  
MODULATORS  
ISENSE  
RT /CT  
OUTPUT  
GROUND  
J Package – 8 Pin Ceramic DIP  
N Package – 8 Pin Plastic DIP  
FEATURES  
D-8 Package – 8 Pin Plastic (150) SOIC  
• Guaranteed ±1% reference voltage tolerance  
TOP VIEW  
• Guaranteed ±10% frequency tolerance  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
VREF  
COMP  
N/C  
µ
• Low start–up current (<500 A)  
N/C  
• Under voltage lockout with hysteresis  
VFB  
VCC  
• Output state completely defined for all supply  
and input conditions  
N/C  
VC  
• Interchangeable with UC1844 and UC1845  
series for improved operation  
ISENSE  
N/C  
OUTPUT  
GROUND  
• 500kHz Oscillator operation  
250kHz Output operation  
POWER  
GROUND  
8
RT /CT  
D-14 Package – 14 Pin Plastic (150) SOIC  
Order Information  
Part  
Number  
J–Pack  
8 Pin  
N–Pack  
8 Pin  
D–8  
8 Pin  
D–14  
14 Pin  
Temp.  
Range  
Note:  
To order, add the package identifier to the  
part number.  
IP1844  
IP2844  
IP3844  
IP1845  
IP2845  
IP3845  
-55 to +125°C  
-25 to +85°C  
0 to +70°C  
-55 to +125°C  
-25 to +85°C  
0 to +70°C  
eg.  
IP1844D–14  
IP3845J  
ABSOLUTE MAXIMUM RATINGS (T  
= 25°C unless otherwise stated)  
case  
(low impedance source)  
V
Supply Voltage  
+30V  
Self limiting  
CC  
(I < 30mA)  
CC  
I
Output Current  
±1A  
O
Output Energy  
(capacitive load)  
(pins 2 and 3)  
5µJ  
Analog Inputs  
–0.3V to +V  
10mA  
CC  
Error Amp Output Sink Current  
Power Dissipation  
P
P
P
T
T
T
= 25°C  
= 25°C  
= 25°C  
J, N Packages  
D Package  
1W  
10mW/°C  
D
D
D
amb  
case  
case  
Derate @ T  
> 50°C  
amb  
Power Dissipation  
Derate @ T > 50°C  
725mW  
7.25mW/°C  
amb  
Power Dissipation  
Derate @ T > 25°C  
J, N Packages  
2W  
16mW/°C  
case  
T
T
Storage Temperature Range  
Lead Temperature  
–65 to 150°C  
+300°C  
STG  
(soldering, 10 seconds)  
L
Prelim. 2/95  
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.  

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