UC3844BD1G AC-DC Power Conversion by ON Semiconductor
High Performance Current Mode PWM Controller
| Status: | Active |
|---|---|
| Series: | UC3844B |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$0.10
Features
| Trimmed Oscillator for Precise Frequency Control |
| Oscillator Frequency Guaranteed at 250 kHz |
| Current Mode Operation to 500 kHz Output Switching Frequency |
| Output Deadtime Adjustable from 50% to 70% |
| Automatic Feed Forward Compensation |
| Latching PWM for Cycle-By-Cycle Current Limiting |
| Internally Trimmed Reference with Undervoltage Lockout |
| High Current Totem Pole Output |
| Undervoltage Lockout with Hysteresis |
| Low Startup and Operating Current |
| Pb-Free Packages are Available |
Specifications
| Description | UC3844B |
|---|---|
| Compliance | Pb-free Halide free |
| Topology | Flyback Forward Step-Down Step-Up |
| Control Mode | Current Mode |
| fsw Typ (kHz) | 52 |
| Stand-by Mode | No |
| UVLO (V) | Yes |
| Short Circuit Protection | Yes |
| Latch | No |
| Soft Start | No |
| VCC Max (V) | 25 |
| Drive Cap. (mA) | 200 / 200 |
| Package Type | SOIC-8 |
Alternative Descriptions
| Current Mode Pwm Controller, 25V, 8-Soic | Newark Electronics |
| onsemi PWM Controller, SOIC, Tube, 1A, 25V | Distrelec |
| Hi Perf Current Mode Cont,UC3844BD1G | RS |
| UC3844BD1G, PWM Current Mode Controller, 1 A, 500 kHz 8-Pin SOIC | ON Semiconductor UC3844BD1G | RS Americas |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a UC3844BD1G?
Additional datasheets, footprints and schematics for UC3844BD1G are listed on our Part Details page. You can also find images and similar parts to UC3844BD1G on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for UC3844BD1G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view UC3844BD1G price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does UC3844BD1G fall under?
The UC3844BD1G is listed under Power Management > AC-DC Power Conversion > Offline Controllers.
Can I view similar or alternative parts?
You can view similar parts to UC3844BD1G when available in the Offline Controllers range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the UC3844BD1G you can contact the distributor directly for product support, shipping queries etc.
Is the UC3844BD1G RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.
Which authorised distributors for UC3844BD1G have stock available?
Authorised distributors including element14, Chip One Stop, Newark Electronics, Distrelec and RS have stock available or on a lead time for UC3844BD1G.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for UC3844BD1G often in real-time on the comparison pages.
What if I can't find stock of UC3844BD1G?
You can fill out our help required form which you can use to request a quote for UC3844BD1G from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.