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Seme LAB - CURRENT MODE REGULATING PULSE WIDTH MODULATORS

Numéro de référence IP3842
Description CURRENT MODE REGULATING PULSE WIDTH MODULATORS
Fabricant Seme LAB 
Logo Seme LAB 





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IP3842 fiche technique
IP1842 SERIES
IP1843 SERIES
TOP VIEW
COMP 1
VFB 2
ISENSE 3
RT /CT 4
8 VREF
7 VCC
6 OUTPUT
5 GROUND
CURRENT MODE
REGULATING
PULSE WIDTH
MODULATORS
J Package – 8 Pin Ceramic DIP
N Package – 8 Pin Plastic DIP
D-8 Package – 8 Pin Plastic (150) SOIC
TOP VIEW
COMP 1
N/C 2
VFB 3
N/C 4
ISENSE 5
N/C 6
RT /CT 7
14 VREF
13 N/C
12 VCC
11 VC
10 OUTPUT
9 GROUND
POWER
8 GROUND
FEATURES
• Guaranteed ±1% reference voltage tolerance
• Guaranteed ±10% frequency tolerance
• Low start–up current (<500 mA)
• Under voltage lockout with hysteresis
• Output state completely defined for all supply
and input conditions
• Interchangeable with UC1842 and UC1843
series for improved operation
• 500kHz operation
D-14 Package – 14 Pin Plastic (150) SOIC
Order Information
Part
Number
IP1842
IP2842
IP3842
IP1843
IP2843
IP3843
JPack
8 Pin
NPack
8 Pin
D8
8 Pin
D14
14 Pin
Temp.
Range
-55 to +125°C
-25 to +85°C
0 to +70°C
-55 to +125°C
-25 to +85°C
0 to +70°C
Note:
To order, add the package identifier to the
part number.
eg. IP1842J
IP3843D-14
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
VCC Supply Voltage
IO Output Current
Output Energy
(low impedance source)
(ICC < 30mA)
(capacitive load)
+30V
Self limiting
±1A
5mJ
Analog Inputs
(pins 2 and 3)
Error Amp Output Sink Current
–0.3V to +VCC
10mA
PD
PD
TSTG
TL
Power Dissipation
Derate @ Tamb > 50°C
Power Dissipation
Derate @ Tcase > 25°C
Storage Temperature Range
Lead Temperature
Tamb = 25°C
Tcase = 25°C
(soldering, 10 seconds)
1W
10mW/°C
2W
24mW/°C
–65 to 150°C
+300°C
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected] Website: http://www.semelab.co.uk
Prelim.3/00

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