Details
BUY UCC3580D-3G4 https://www.utsource.net/itm/p/12541674.html
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage | Vcc | 4.5 | - | 20 | V | |
| Operating Temperature | Topr | -40 | - | 125 | °C | |
| Switching Frequency | fsw | - | 300 | 1000 | kHz | |
| Maximum Duty Cycle | Dmax | - | 95 | - | % | |
| Minimum On-Time | ton(min) | - | 60 | - | ns | |
| Current Limit Threshold | ILIM | - | 1.2 | - | A | |
| Propagation Delay | tpd | - | 75 | - | ns | |
| UVLO Threshold (Typical) | VUVLO | - | 3.8 | - | V |
Instructions for UCC3580D-3G4
Supply Voltage Configuration:
- Ensure the supply voltage (V_) is within the range of 4.5V to 20V to prevent damage and ensure proper operation.
Operating Temperature Range:
- The device is designed to operate within a temperature range of -40°C to 125°C. Avoid operating outside this range to maintain reliability.
Setting the Switching Frequency:
- Adjust the switching frequency using external components. The typical operating frequency is around 300kHz, but it can be set up to 1000kHz depending on application requirements.
Duty Cycle Management:
- Keep the duty cycle below 95% to avoid potential instability or malfunction in the circuit.
Minimum On-Time Consideration:
- Ensure that the minimum on-time is not less than 60ns to prevent issues with pulse width modulation (PWM).
Current Limiting:
- Set the current limit threshold appropriately to protect the device from overcurrent conditions. The typical value is 1.2A.
Propagation Delay:
- Be aware of the propagation delay of 75ns when designing timing-sensitive applications.
UVLO (Under-Voltage Lockout):
- The UVLO feature ensures the device remains off until the supply voltage exceeds approximately 3.8V, preventing operation under insufficient power conditions.
For detailed design considerations and specific application notes, refer to the official datasheet provided by the manufacturer.
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