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CA1524F 데이터시트(PDF) 1 Page - Intersil Corporation |
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CA1524F 데이터시트(HTML) 1 Page - Intersil Corporation |
1 / 16 page 1 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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