Programmable off-line PWM controller featuring a 450kHz switching frequency and a maximum duty cycle of 46%. This non-isolated DC/DC controller supports flyback topology with a single output capable of 400mA at 40V, delivering up to 1W of output power. Operates within an 8V to 30V supply voltage range, with a maximum power dissipation of 1W. Packaged in an 18-PDIP (N) configuration, this RoHS compliant component is suitable for operation between 0°C and 70°C.
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Texas Instruments UC3851N technical specifications.
| Package/Case | N |
| Duty Cycle | 46% |
| Fall Time | 50ns |
| Frequency | 450kHz |
| Isolation | Non-Isolated |
| Lead Free | Lead Free |
| Max Duty Cycle | 46% |
| Max Operating Temperature | 70°C |
| Min Operating Temperature | 0°C |
| Max Power Dissipation | 1W |
| Max Supply Voltage | 30V |
| Min Supply Voltage | 8V |
| Number of Outputs | 1 |
| Output Current | 400mA |
| Output Power | 1W |
| Output Voltage | 40V |
| Package Quantity | 20 |
| Packaging | Rail/Tube |
| Radiation Hardening | No |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Supply Current | 15mA |
| Topology | Flyback |
| Weight | 0.042544oz |
| RoHS | Compliant |
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