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CA1524F Arkusz danych(PDF) 1 Page - Intersil Corporation

Numer części CA1524F
Szczegółowy opis  Regulating Pulse Width Modulator
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Producent  INTERSIL [Intersil Corporation]
Strona internetowa  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CA1524F Arkusz danych(HTML) 1 Page - Intersil Corporation

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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Copyright
© Intersil Corporation 2000
CA1524, CA2524
CA3524
Regulating Pulse Width Modulator
Description
The CA1524 and CA3524 are silicon monolithic integrated
circuits designed to provide all the control circuitry for use in
a broad range of switching regulator circuits.
The CA1524 and CA3524 have all the features of the indus-
try types SG1524, SG2524, and SG3524, respectively. A
block diagram of the CA1524 series is shown in Figure 1.
The circuit includes a zener voltage reference, transconduc-
tance error amplifier, precision R-C oscillator, pulse-width
modulator, pulse-steering flip-flop, dual alternating output
switches, and current-limiting and shutdown circuitry. This
device can be used for switching regulators of either polarity,
transformer-coupled dc-dc converter, transformerless volt-
age doublers, dc-ac power inverters, highly efficient variable
power supplies, and polarity converter, as well as other
power-control applications.
Ordering Information
PART
NUMBER
TEMPERATURE
RANGE
PACKAGE
CA1524E
-55oC to +125oC
16 Lead Plastic DIP
CA1524F
-55oC to +125oC
16 Lead CerDIP
CA2524E
0oC to +70oC
16 Lead Plastic DIP
CA2524F
0oC to +70oC
16 Lead CerDIP
CA3524E
0oC to +70oC
16 Lead Plastic DIP
CA3524F
0oC to +70oC
16 Lead CerDIP
Features
• Complete PWM Power Control Circuitry
• Separate Outputs for Single-Ended or Push-Pull
Operation
• Line and Load Regulation . . . . . . . . . . . . . . . 0.2% (Typ)
• Internal Reference Supply with 1% (Max) Oscillator
and Reference Voltage Variation Over Full
Temperature Range
• Standby Current of Less Than 10mA
• Frequency of Operation Beyond 100kHz
• Variable-Output Dead Time of 0.5
µs to 5µs
•Low VCE(sat) Over the Temperature Range
Applications
• Positive and Negative Regulated Supplies
• Dual-Output Regulators
• Flyback Converters
• DC-DC Transformer-Coupled Regulating Converters
• Single-Ended DC-DC Converters
• Variable Power Supplies
File Number
1239.4
Pinout
CA1524, CA3524
(PDIP, CERDIP)
TOP VIEW
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
CT
RT
VREF
EMITTER B
COLLECTOR B
COLLECTOR A
EMITTER A
SHUTDOWN
INV. INPUT
OSC OUT
GND
(-) C.L.
SENSE
(+) C.L.
SENSE
V+
COMPENSATION
AND COMPARATOR
NON-
INV. INPUT
October 2000
CA2524
IS AN
OBSOLETE
PRODUCT


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