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CA1523E Datasheet(PDF) 1 Page - Intersil Corporation |
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CA1523E Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 6 page 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved ® CA1523 Voltage Regulator Control Circuit for Variable Switching Regulator Description The CA1523 monolithic silicon integrated circuit is a variable interval pulse regulator designed to provide the control cir- cuitry for use in switching regulator circuits. It operates from 11V to 15V. The regulator provides a single output drive capable of 300mA source/200mA sink. The maximum operating fre- quency is better than 200kHz. An attractive feature of the CA1523 is that the timing capacitor charge and discharge current is set up externally via a single resistor. The ratio of charge to discharge current is internally set at a maximum of 2 to 1 allowing simultaneous change in output pulse width with increased frequency at higher load. The pulse width variation at higher frequencies effectively compensates for the losses in magnetics and thereby increases the power supply efficiency at higher load end by as much as 20 percent. Features • Operates up to 200kHz • Pins ESD Protected • Remote ON/OFF • Slow Start with Reset • Overcurrent Sensing • Lower Peak Currents than PWM Regulator - Less Prone to Magnetic Saturation Part Number Information PART NUMBER TEMPERATURE RANGE PACKAGE CA1523E 0oC to +70oC 14 Lead Plastic DIP File Number 1785.3 November 2000 Pinout CA1523 (PDIP) TOP VIEW ERROR CURRENT SENSE GND RISE TIME OUTPUT GND OUTPUT VCC TIMING ZENER ON/OFF OVER CURRENT SLOW START LOGIC OUTPUT NC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 OBS OLE TE P ROD UCT NO REC OMM END ED R EPL ACE MEN T con tact our Tech nica l Su ppo rt C ente r at 1-88 8-IN TER SIL or w ww. inte rsil. com /tsc |
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