Share:
Specifications
SKU: 1386371
Rad-hard hex buffer/converter inverter
| Parameter | Symbol | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Supply Voltage | Vcc | 4.5 | 12 | 36 | V | Operating voltage range |
| Start-Up Current | Istartup | - | 100 | - | μA | Current required to start the device |
| Quiescent Current | Iq | - | 3 | - | mA | Current consumed by the device in quiescent state |
| Shutdown Current | Ishutdown | - | 1 | - | μA | Current consumed by the device in shutdown mode |
| Reference Voltage | Vref | 4.95 | 5.0 | 5.05 | V | Voltage reference output |
| Oscillator Frequency Range | fosc | 0.1 | - | 1.0 | MHz | Range of oscillator frequency |
| Dead Time | Tdead | 0.1 | 0.2 | 0.3 | μs | Minimum time between the turn-off of one switch and the turn-on of the other |
| Maximum Duty Cycle | Dmax | - | 95 | - | % | Maximum duty cycle of the PWM output |
| Output Current | Iout | 100 | 300 | 500 | mA | Maximum current the output can source or sink |
| Thermal Shutdown Temperature | Tsd | 150 | - | 170 | °C | Temperature at which the device will shut down to prevent damage |
Instructions for Using the UC3833N:
Power Supply:
- Ensure the supply voltage (Vcc) is within the specified range of 4.5V to 36V.
- Use a stable power supply to avoid fluctuations that could affect performance.
Start-Up and Quiescent Current:
- The device requires a minimum startup current of 100 μA to begin operation.
- In quiescent mode, the device consumes approximately 3 mA of current.
Shutdown Mode:
- To place the device in shutdown mode, pull the shutdown pin low. The device will consume about 1 μA of current in this mode.
Reference Voltage:
- The reference voltage (Vref) is typically 5.0V with a tolerance of ±0.05V. This voltage can be used as a stable reference for external circuits.
Oscillator Frequency:
- Set the oscillator frequency using an external resistor and capacitor. The frequency range is from 0.1 MHz to 1.0 MHz.
Dead Time:
- Ensure a dead time of at least 0.1 μs to 0.3 μs between the turn-off of one switch and the turn-on of the other to prevent shoot-through currents.
Duty Cycle:
- The maximum duty cycle is 95%. Avoid exceeding this limit to maintain reliable operation.
Output Current:
- The device can source or sink up to 500 mA of current. Ensure the load does not exceed this limit to prevent damage.
Thermal Management:
- Monitor the temperature of the device. If it exceeds 150°C, the device will enter thermal shutdown to protect itself. Ensure adequate cooling to keep the temperature below this threshold.
Layout Considerations:
- Use short, wide traces for power and ground connections to minimize inductance and improve stability.
- Place decoupling capacitors close to the Vcc and GND pins to filter out noise and ensure stable operation.
Protection Circuits:
- Implement appropriate protection circuits such as overvoltage, undervoltage, and overcurrent protection to safeguard the device and connected components.
By following these instructions, you can ensure optimal performance and reliability of the UC3833N in your application.
(For reference only)Inquiry - UC3833N
