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- UC3844BDG - ON Semiconductor
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Manufacturer:ON Semiconductor
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ManyChip's Part#:MC8857900
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Category:Voltage Regulator
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Package:SOIC-14
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Datasheet:Datasheet 3D Model
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Description:UC3844BDG, PWM Current Mode Controller, 1A, 275kHz, 30V, 14Pin SOIC
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Stock Locations:
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Availability:286 pcs In Stock
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MOQ:1 pcs
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Unit Price:$ 0.19
Updated at 01/11/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- The UC3844BDG is a high performance fixed frequency Current Mode Controller designed for off-line and DC-to-DC converter applications offering the designer a cost-effective solution with minimal external components. This integrated circuits feature an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference under-voltage lockouts each with hysteresis, cycle-by-cycle current limiting, a latch for single pulse metering and a flip-flop which blanks the output off every other oscillator cycle, allowing output deadtimes to be programmed from 50 to 70%. The UCX844B has UVLO thresholds of 16V (on) and 10V (off), ideally suited for off-line converters. The UCX845B is tailored for lower voltage applications having UVLO thresholds of 8.5V (on) and 7.6V (off).
- Trimmed oscillator for precise frequency control
- Oscillator frequency guaranteed at 250kHz
- Current mode operation to 500kHz output switching frequency
- Output dead time adjustable from 50 to 70%
- Automatic feed forward compensation
- Latching PWM for cycle-by-cycle current limiting
- Internally trimmed reference with under-voltage lockout
- High current totem pole output
- Under-voltage lockout with hysteresis
- Low startup and operating current
- 36V Bias and driver voltage
- 30mA Total power supply and Zener current
- +150°C Maximum junction temperature
- ESD sensitive device, take proper precaution while handling the device.
UC3844BDG Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 14 Pin |
| Case/Package | SOIC-14 |
| Frequency | 250 kHz |
| Supply Voltage (DC) | 12.0V (min) |
| Operating Voltage | 10V ~ 36V |
| Halogen Free Status | Halogen Free |
| Number of Outputs | 1 Output |
| Output Voltage | 13.5 V |
| Output Current | 200 mA |
| Number of Positions | 14 Position |
| Power Dissipation | 862 mW |
| Rise Time | 50 ns |
| Switching Frequency | 500 kHz |
| Topology | Flyback, Forward, Step-Up, Step-Down |
| Duty Cycle | 48 % |
| Maximum Duty Cycle | 48 % |
| Fall Time | 50 ns |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| Power Dissipation (Max) | 862 mW |
| Supply Voltage | 10V ~ 30V |
| Supply Voltage (Max) | 25 V |
| Supply Voltage (Min) | 12 V |
| Show | |
| Size-Length | 8.75 mm |
| Size-Width | 4 mm |
| Size-Height | 1.5 mm |
| Operating Temperature | 0℃ ~ 70℃ |
| Product Lifecycle Status | Active |
| Packaging | Each |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| REACH SVHC Compliance | No SVHC |
| REACH SVHC Compliance Edition | 2015/12/17 |
| ECCN Code | EAR99 |
Order guide
-
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charges, duties and taxes.
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- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
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