Overview
The MC34063AP1G is a monolithic control circuit designed for DC-to-DC converters, produced by onsemi. This device is part of the MC34063A series, which includes the MC34063A, MC33063A, SC33063A, and NCV33063A. It is specifically designed to be used in Step-Down, Step-Up, and Voltage-Inverting applications with a minimal number of external components. The MC34063AP1G integrates an internal temperature-compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver, and high current output switch.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage (VCC) | 40 | Vdc |
| Comparator Input Voltage Range (VIR) | -0.3 to +40 | Vdc |
| Switch Collector Voltage (VC(switch)) | 40 | Vdc |
| Switch Emitter Voltage (VE(switch)) | 40 | Vdc |
| Switch Collector to Emitter Voltage (VCE(switch)) | 40 | Vdc |
| Driver Collector Voltage (VC(driver)) | 40 | Vdc |
| Driver Collector Current (IC(driver)) | 100 | mA |
| Switch Current (ISW) | 1.5 | A |
| Oscillator Frequency (fosc) | 24 to 42 | kHz |
| Operating Junction Temperature (TJ) | -150 | °C |
| Operating Ambient Temperature Range (TA) | 0 to +70 | °C |
| Storage Temperature Range (Tstg) | -65 to +150 | °C |
Key Features
- Internal temperature-compensated reference and comparator.
- Controlled duty cycle oscillator with an active current limit circuit.
- High current output switch.
- Supports Step-Down, Step-Up, and Voltage-Inverting applications.
- Low duty cycle pulse techniques to maintain junction temperature close to ambient temperature.
- ESD protection exceeding Human Body Model 4000 V and Machine Model 400 V.
- Pb-Free package options available.
Applications
The MC34063AP1G is versatile and can be used in various DC-to-DC converter applications, including:
- Step-Down (Buck) converters.
- Step-Up (Boost) converters.
- Voltage-Inverting converters.
- External current boost configurations for peak currents greater than 1.5 A.
- Automotive and industrial power supply systems due to its robust thermal and electrical characteristics.
Q & A
- What is the maximum power supply voltage for the MC34063AP1G?
The maximum power supply voltage (VCC) is 40 Vdc. - What is the operating junction temperature range for the MC34063AP1G?
The operating junction temperature (TJ) range is up to +150°C. - What types of DC-to-DC converters can the MC34063AP1G be used in?
The MC34063AP1G can be used in Step-Down, Step-Up, and Voltage-Inverting applications. - Does the MC34063AP1G have ESD protection?
Yes, it exceeds the Human Body Model 4000 V and Machine Model 400 V tests. - What is the maximum switch current (ISW) for the MC34063AP1G?
The maximum switch current (ISW) is 1.5 A. - What is the typical oscillator frequency range for the MC34063AP1G?
The oscillator frequency range is typically between 24 kHz and 42 kHz. - Can the MC34063AP1G be used in automotive applications?
Yes, the NCV prefix versions are designed for automotive and other applications requiring site and change control. - What is the storage temperature range for the MC34063AP1G?
The storage temperature range (Tstg) is from -65°C to +150°C. - How does the MC34063AP1G handle thermal management?
The device uses low duty cycle pulse techniques to maintain the junction temperature close to ambient temperature, and it has specified thermal resistance values depending on the package type. - What are the package options available for the MC34063AP1G?
The device is available in PDIP-8 (Pb-Free) and SOIC-8 (Pb-Free) packages.
