| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 57kHz ~ 78kHz |
| Number of Pins | 16 Pin |
| Supply Voltage (DC) | 4.50V (min) |
| Case/Package | SOIC-16 |
| Supply Current | 6 mA |
| Power Dissipation | 1 W |
| Output Current (Max) | 20 mA |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 1000 mW |
| Supply Voltage | 4.5V ~ 24V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 10.28 mm |
| Size-Width | 7.52 mm |
| Size-Height | 2.35 mm |
| Operating Temperature | -40℃ ~ 85℃ |
The UC3872 is a resonant lamp ballast controller optimized for driving cold cathode fluorescent, neon, and other gas discharge lamps. The resonant power stage develops a sinusoidal lamp drive voltage, and minimizes switching loss and EMI generation. Lamp intensity adjustment is accomplished with a buck regulator, which is synchronized to the external power stage\x92s resonant frequency. Suitable for automotive and battery powered applications, the UC3872 draws only 1\xB5A when disabled.
●Soft start and open lamp detect circuitry have been incorporated to minimize component stresses. Open lamp detection is enabled at the completion of a soft start cycle. The chip is optimized for smooth duty cycle control to 100%.
●Other features include a precision 1.2% reference, undervoltage lockout, and accurate minimum and maximum frequency control. View datasheet View product folder
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