IP3842N Semelab-Plc-, IP3842N Datasheet

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IP3842N

Manufacturer Part Number
IP3842N
Description
Current Mode Regulating Pulse Width Modulator
Manufacturer
Semelab-Plc-
Datasheet
1.IP3842N.pdf (6 pages)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
IP3842N
Quantity:
5 510
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
IP3842N
Manufacturer:
SHARP
Quantity:
5 510
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
IP3842N
Manufacturer:
SML
Quantity:
20 000
ABSOLUTE MAXIMUM RATINGS
V
I
P
P
T
T
Semelab plc.
Part
Number
IP1842
IP2842
IP3842
IP1843
IP2843
IP3843
O
STG
L
CC
D
D
D-14 Package – 14 Pin Plastic (150) SOIC
D-8 Package – 8 Pin Plastic (150) SOIC
N Package – 8 Pin Plastic DIP
J Package – 8 Pin Ceramic DIP
J–Pack
COMP
COMP
Supply Voltage
Output Current
Output Energy
Analog Inputs
Error Amp Output Sink Current
Power Dissipation
Derate @ T
Power Dissipation
Derate @ T
Storage Temperature Range
Lead Temperature
I
R
I
R
SENSE
SENSE
8 Pin
T
T
N/C
N/C
N/C
V
V
/C
/C
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
FB
FB
T
T
1
2
3
4
1
2
3
4
5
6
7
TOP VIEW
TOP VIEW
sales@semelab.co.uk
N–Pack
amb
case
8 Pin
> 50°C
> 25°C
14
13
12
11
10
8
7
6
5
9
8
V
V
OUTPUT
GROUND
V
N/C
V
V
OUTPUT
GROUND
POWER
GROUND
REF
CC
REF
CC
C
8 Pin
D–8
(low impedance source)
(I
(capacitive load)
(pins 2 and 3)
T
T
(soldering, 10 seconds)
Website:
Order Information
CC
amb
case
(T
14 Pin
D–14
case
< 30mA)
= 25°C
= 25°C
http://www.semelab.co.uk
= 25°C unless otherwise stated)
-55 to +125°C
-55 to +125°C
-25 to +85°C
-25 to +85°C
FEATURES
• Guaranteed ±1% reference voltage tolerance
• Guaranteed ±10% frequency tolerance
• Low start–up current (<500
• Under voltage lockout with hysteresis
• Output state completely defined for all supply
• Interchangeable with UC1842 and UC1843
• 500kHz operation
0 to +70°C
0 to +70°C
and input conditions
series for improved operation
Temp.
Range
CURRENT MODE
MODULATORS
Note:
To order, add the package identifier to the
part number.
eg.
PULSE WIDTH
REGULATING
IP1842J
IP3843D-14
IP1842 SERIES
IP1843 SERIES
–0.3V to +V
–65 to 150°C
Self limiting
m
m
m
m
10mW/°C
24mW/°C
A)
+300°C
10mA
+30V
±1A
5
1W
2W
m
J
CC
Prelim.3/00

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IP3842N Summary of contents

Page 1

TOP VIEW COMP SENSE Package – 8 Pin Ceramic DIP N Package – 8 Pin Plastic DIP D-8 Package – 8 Pin Plastic (150) SOIC TOP VIEW COMP ...

Page 2

DESCRIPTION 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, ...

Page 3

ELECTRICAL CHARACTERISTICS Parameter Test Conditions REFERENCE SECTION Output Voltage I = 1mA O Input Regulation V = 12V to 25V CC Output Regulation I = 1mA to 20mA O Temperature Stability Total Output Variation Line, Load, Temp Output Noise Voltage ...

Page 4

ELECTRICAL CHARACTERISTICS Parameter Test Conditions CURRENT SENSE SECTION Gain See Notes 2,3 Maximum Input Signal V = 4.6V PIN1 Supply Voltage V = 12V to 25V C Rejection Input Bias Current Delay to Output OUTPUT SECTION I = 20mA SINK ...

Page 5

Oscillator Waveforms and Maximum Duty Cycle Oscillator timing capacitor C is charged through R and discharged by an internal current source. T During the discharge time, the internal clock signal blanks the output to the low state. ...

Page 6

TYPICAL PERFORMANCE CHARACTERISTICS Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk V COMP 1 8 REF OUTPUT 3 6 SENSE R /C GROUND COMP ...

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