Overview
The MC33364D2R2G is a critical conduction mode SMPS (Switch-Mode Power Supply) controller from onsemi, optimized for high-density power supplies. It is part of the MC33364 series, which is designed to minimize board area, reduce component count, and lower power dissipation. The controller features an integrated high voltage startup, saving approximately 0.7 W of power compared to resistor bootstrapped circuits. This makes it highly efficient for applications requiring compact and energy-efficient power solutions.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Topology | Flyback | Power supply topology |
| Control Mode | Current Mode | Mode of operation |
| Switching Frequency | Up to 150 kHz | Maximum switching frequency |
| UVLO (Under Voltage Lock Out) | Yes | Presence of under voltage lock out feature |
| Short Circuit Protection | Yes | Presence of short circuit protection |
| Operating Temperature Range | -25°C to +125°C | Temperature range for operation |
| Package Type | SOIC-8 | Package type of the IC |
| Drive Capability | 220 / 600 mA | Maximum drive current capability |
| VCC Max | 16 V | Maximum voltage for VCC |
Key Features
- Lossless Off-Line Startup: Integrated high voltage startup saves power.
- Leading Edge Blanking for Noise Immunity: Enhances noise immunity.
- Watchdog Timer to Initiate Switching: Ensures reliable operation.
- Zero Current Detector for Critical Conduction Operation: Ensures efficient operation in critical conduction mode.
- Current Sensing Comparator and Cycle-by-Cycle Current Limiting: Provides robust current control.
- Optional/Adjustable Frequency Clamp to Limit EMI: Reduces electromagnetic interference.
- Shutdown Capability and Over Temperature Protection: Enhances safety and reliability.
Applications
The MC33364D2R2G is suitable for various high-density power supply applications, including:
- Compact power adapters
- Set-top boxes and other consumer electronics
- Industrial power supplies requiring high efficiency and reliability
- Telecommunication equipment
- Medical devices needing efficient and compact power solutions
Q & A
- What is the operating temperature range of the MC33364D2R2G?
The operating temperature range is -25°C to +125°C.
- What is the topology of the MC33364D2R2G?
The topology is flyback.
- Does the MC33364D2R2G have short circuit protection?
Yes, it has short circuit protection.
- What is the maximum switching frequency of the MC33364D2R2G?
The maximum switching frequency is up to 150 kHz.
- What package type is the MC33364D2R2G available in?
The package type is SOIC-8.
- Does the MC33364D2R2G have an adjustable frequency clamp?
Yes, it has an optional/adjustable frequency clamp to limit EMI.
- What is the drive capability of the MC33364D2R2G?
The drive capability is 220 / 600 mA.
- Does the MC33364D2R2G have a watchdog timer?
Yes, it has a watchdog timer to initiate switching.
- What is the maximum VCC voltage for the MC33364D2R2G?
The maximum VCC voltage is 16 V.
- Is the MC33364D2R2G optimized for high-density power supplies?
Yes, it is optimized for high-density power supplies.
