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UCC28C45DGKR

Specifications

SKU: 11613647

BUY UCC28C45DGKR https://www.utsource.net/itm/p/11613647.html

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:

  1. 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).
  2. 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.
  3. Output Voltage Regulation:

    • The output voltage (VOUT) is regulated to 14.5V under typical operating conditions.
    • Use appropriate feedback components to maintain regulation.
  4. 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.
  5. Minimum Off Time:

    • Ensure the minimum off time (TOFF_MIN) is at least 1.7 μs to avoid shoot-through conditions.
  6. Switching Frequency:

    • The typical switching frequency (fSW) is 100 kHz.
    • Adjust external components if a different frequency is required.
  7. 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.
  8. 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)

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