Specifications
SKU: 11613647
Parameter | Symbol | Min | Typical | Max | Unit | Description |
---|---|---|---|---|---|---|
Input Voltage | VIN | 10 | - | 60 | V | Operating input voltage range |
Start-Up Current | ISTART | - | 0.3 | - | mA | Initial start-up current |
Quiescent Current | IQ | - | 0.6 | - | mA | Quiescent current at nominal operating conditions |
Output Voltage | VOUT | - | 14.5 | - | V | Regulated output voltage |
Maximum Duty Cycle | DMAX | - | 0.9 | - | - | Maximum duty cycle for PWM control |
Minimum Off Time | TOFF_MIN | - | 1.7 | - | μs | Minimum off time to prevent shoot-through |
Switching Frequency | fSW | - | 100 | - | kHz | Typical switching frequency |
Thermal Shutdown Temperature | TSD | - | 160 | - | °C | Temperature at which thermal shutdown occurs |
Storage Temperature | TSTG | -40 | - | 150 | °C | Temperature range for storage and handling |
Instructions for Using UCC28C45DGKR:
Power Supply Connection:
- Connect the input voltage (VIN) between the VCC and GND pins.
- Ensure the input voltage is within the specified range (10V to 60V).
Start-Up and Quiescent Current:
- The device will start up when the VCC pin reaches the start-up threshold.
- The quiescent current should be monitored to ensure efficient operation.
Output Voltage Regulation:
- The output voltage (VOUT) is regulated to 14.5V under typical operating conditions.
- Use appropriate feedback components to maintain regulation.
PWM Control:
- The maximum duty cycle (DMAX) is set to 0.9 to prevent overdriving the switch.
- Adjust the PWM signal to control the output power as needed.
Minimum Off Time:
- Ensure the minimum off time (TOFF_MIN) is at least 1.7 μs to avoid shoot-through conditions.
Switching Frequency:
- The typical switching frequency (fSW) is 100 kHz.
- Adjust external components if a different frequency is required.
Thermal Management:
- Monitor the temperature to ensure it does not exceed 160°C, which triggers thermal shutdown.
- Use appropriate heatsinking or cooling methods if necessary.
Storage and Handling:
- Store the device in a temperature range of -40°C to 150°C.
- Follow standard ESD precautions during handling.
For detailed application circuits and further information, refer to the datasheet provided by Texas Instruments.
(For reference only)Inquiry - UCC28C45DGKR