Current Mode PWM Controller for Boost and Flyback topologies. Features a single PWM output with a maximum output current of 1000 mA and a maximum duty cycle of 50%. Operates within a temperature range of 0 °C to 70 °C. Packaged in a 14-pin SOIC (Small Outline IC) with gull-wing leads, suitable for surface mount applications.
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Onsemi UC3844D technical specifications.
| Basic Package Type | Lead-Frame SMT |
| Package Family Name | SOP |
| Package/Case | SOIC |
| Package Description | Small Outline IC |
| Lead Shape | Gull-wing |
| Pin Count | 14 |
| PCB | 14 |
| Package Length (mm) | 8.75(Max) |
| Package Width (mm) | 4(Max) |
| Package Height (mm) | 1.5(Max) |
| Seated Plane Height (mm) | 1.75(Max) |
| Pin Pitch (mm) | 1.27 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MS-012AB |
| Control Method | Current Mode PWM Controller |
| Type | Current Mode PWM Controller |
| Topology | Boost|Flyback |
| Number of PWM Outputs | 1 |
| Output Current | 1000(Max)mA |
| Maximum Duty Cycle | 50% |
| Min Operating Temperature | 0°C |
| Max Operating Temperature | 70°C |
| Fall Time | 50ns |
| Adjustable Output | No |
| On/Off Pin | No |
| Synchronous Pin | No |
| Maximum Supply Current | 17mA |
| Maximum Power Dissipation | 862mW |
| Cage Code | 5V1P1 |
| EU RoHS | No |
| HTS Code | 8542310001 |
| Schedule B | 8542390000 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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