CA1524 Datasheet | Intersil

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 industry 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, transconductance 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 voltage doublers, dc-ac power inverters, highly efficient variable power supplies, and polarity converter, as well as other power-control applications. Features - plete 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 10m A - Frequency of Operation Beyond 100k Hz - Variable-Output Dead Time of 0.5µs 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 Ordering Information PART NUMBER CA1524E CA1524F CA2524E CA2524F CA3524E CA3524F TEMPERATURE RANGE -55o C -55o C 0o C 0o C 0o C 0o C to to to to to to +125o C +125o C +70o C +70o C +70o C +70o C PACKAGE 16 Lead Plastic DIP 16 Lead Cer DIP 16 Lead Plastic DIP 16 Lead Cer DIP 16 Lead Plastic DIP 16 Lead Cer DIP Pinout CA1524, CA3524 (PDIP, CERDIP) TOP VIEW INV. INPUT NONINV. INPUT OSC OUT (+) C.L. SENSE (-) C.L. SENSE RT CT GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VREF V+ EMITTER B COLLECTOR B...