The MC34063A Series is a monolithic control circuit containing the primary functions required for DC€š¬‚¬œto€š¬‚¬œDC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver, and high current output switch. This series was specifically designed to be incorporated in inStep€š¬‚¬œDown and Step€š¬‚¬œUp and Voltage€š¬‚¬œInverting
Applications
NotesAN920A/D and AN954/D for additional design information.MC34063 Pinout Configuration
| Pin Number | Pin Name | Description |
| 1 | Switch Collector | Collector pin of Internal transistors (Output Voltage pin) |
| 2 | Switch Emitter | Emitter pin of Internal Transistors |
| 3 | Timing Capacitor | Connect to a capacitor which decides the switching frequency |
| 4 | Ground | Connected to ground |
| 5 | Comparator Inverting Input | Used to set the output voltage |
| 6 | Vcc | Input voltage is fed to this pin |
| 7 | Ipeak Sense | Used to set the output current |
| 8 | Driver Collector | Collector pin of switching transistor |
Specification
| Power Supply Voltage | 40Vdc |
| Switch Collector Voltage | 40Vdc |
| Switch Emitter Voltage | 40Vdc |
| Switch Collector to Emitter Voltage | 40Vdc |
| Driver Collector Voltage | 40Vdc |
| Driver Collector Current | 100mA |
| Switch Current | 1.5A |
| Operating Ambient Temperature Range | 0 to +70 |
| L*B*H |
FAQs
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