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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- DESCRIPTION
- The UC1846/7 family of control ICs provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The
- superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel “power modules" while maintaining equal current sharing.Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shutdown function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off.Other features include fully latched operation, double pulse suppression, deadline adjust capability, and a±1% trimmed bandgap reference. The UC1846 features low outputs in the OFF state, while the UC1847 features high outputs in the OFF state.
- FEATURES
- • Automatic Feed Forward Compensation
- • Programmable Pulse-by-Pulse Current Limiting
- • Automatic Symmetry Correction in Push-p Configuration
- • Enhanced Load Response Characteristics
- • Parallel Operation Capability for Modular Power Systems
- • Differential Current Sense Amplifier with Wide Common Mode Range
- • Double Pulse Suppression
- • 500mA (Peak) Totem-pole Outputs
- • ±1% Bandgap Reference
- • Under-voltage Lockout
- • Soft Start Capability
- • Shutdown Terminal
- • 500kHZ Operation
UC1846J Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Through Hole |
| Number of Pins | 16 Pin |
| Case/Package | CDIP-16 |
| Output Voltage | 5.15 V |
| Output Current | 500 mA |
| Supply Current | 21 mA |
| Power Dissipation | 1 W |
| Number of Regulated Outputs | 2 Output |
| Rise Time | 50 ns |
| Switching Frequency | 500 kHz |
| Topology | Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull |
| Duty Cycle | 50 % |
| Maximum Duty Cycle | 50 % |
| Fall Time | 50 ns |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -55 ℃ |
| Power Dissipation (Max) | 1000 mW |
| Show | |
| Size-Length | 21.34 mm |
| Size-Width | 7.62 mm |
| Size-Height | 3.56 mm |
| Operating Temperature | -55℃ ~ 125℃ |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | Non-Compliant |
| Lead-Free Status | Contains Lead |
| ECCN Code | EAR99 |
Order guide
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- 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
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