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IP2844A Datasheet(PDF) 1 Page - Seme LAB

Part # IP2844A
Description  CURRENT MODE REGULATING PULSE WIDTH MODULATORS
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Manufacturer  SEME-LAB [Seme LAB]
Direct Link  http://www.semelab.co.uk
Logo SEME-LAB - Seme LAB

IP2844A Datasheet(HTML) 1 Page - Seme LAB

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LAB
SEME
IP1844A SERIES
IP1845A SERIES
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 2/95
TOP VIEW
J Package – 8 Pin Ceramic DIP
N Package – 8 Pin Plastic DIP
D-8 Package – 8 Pin Plastic (150) SOIC
1
2
3
4
8
7
6
5
COMP
V
REF
GROUND
OUTPUT
R
T /C T
V
CC
I
SENSE
V
FB
TOP VIEW
D-14 Package – 14 Pin Plastic (150) SOIC
COMP
V
REF
GROUND
OUTPUT
1
2
3
4
POWER
GROUND
5
6
7
14
13
12
11
10
9
8
N/C
R
T /C T
I
SENSE
N/C
N/C
N/C
V
CC
V
FB
V
C
CURRENT MODE
REGULATING
PULSE WIDTH
MODULATORS
FEATURES
• Guaranteed ±1% reference voltage tolerance
• Accurate oscillator discharge current
• 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 IP and UC1844/5 series for
improved operation
• 500kHz Oscillator operation
250kHz Output operation
+30V
Self limiting
±1A
5
µJ
–0.3V to +VCC
10mA
1W
10mW/°C
725mW
7.25mW/°C
2W
16mW/°C
–65 to 150°C
+300°C
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
VCC
Supply Voltage
(low impedance source)
(ICC < 30mA)
IO
Output Current
Output Energy
(capacitive load)
Analog Inputs
(pins 2 and 3)
Error Amp Output Sink Current
PD
Power Dissipation
Tamb = 25°C
J, N Packages
Derate @ Tamb > 50°C
PD
Power Dissipation
Tcase = 25°C
D Package
Derate @ Tamb > 50°C
PD
Power Dissipation
Tcase = 25°C
J, N Packages
Derate @ Tcase > 25°C
TSTG
Storage Temperature Range
TL
Lead Temperature
(soldering, 10 seconds)
Part
J–Pack
N–Pack
D–8
D–14
Temp.
Number
8 Pin
8 Pin
8 Pin
14 Pin
Range
IP1844A
-55 to +125°C
IP2844A
-25 to +85°C
IP3844A
0 to +70°C
IP1845A
-55 to +125°C
IP2845A
-25 to +85°C
IP3845A
0 to +70°C
Order Information
Note:
To order, add the package identifier to the
part number.
eg.
IP1844AD–14
IP3845AJ


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