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UC3875DWPTR
+BOMIC OFFLINE SW FULL-BRDG 28SOIC
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ManufacturerTexas Instruments
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Mfr. Part #UC3875DWPTR
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Datasheet UC3875DWPTR DataSheet
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Package SOIC-28
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In Stock7445
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputIsolation | Non-Isolated |
| Topology | Full-Bridge |
| Voltage-StartUp | 10.75 V |
| Voltage-Supply(Vcc/Vdd) | 9.5V ~ 20V |
| DutyCycle | 100% |
| Frequency-Switching | 1MHz |
| FaultProtection | Current Limiting |
| ControlFeatures | Frequency Control, Soft Start, Sync |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| Package/Case | 28-SOIC (0.295, 7.50mm Width) |
| SupplierDevicePackage | 28-SOIC |
Overview
Description
Equivalent
1. TI's UCC3895 - a phase-shifted full-bridge PWM controller.
2. LM5035 from Texas Instruments - offers integrated features for phase-shifted full-bridge topologies.
3. LTC3722 from Analog Devices - a dual-phase-shifted PWM controller.
4. NCP1562 from ON Semiconductor - a similar PWM controller for power conversion applications.
These components may vary slightly in specifications, so reviewing datasheets for compatibility is recommended.
Features
1. PWM Controller: It incorporates pulse-width modulation for efficient power management.
2. Synchronization: Allows for synchronized operation with multiple units or external clocks.
3. Error Amplifier: Includes a high-gain error amplifier for precise voltage regulation.
4. Soft-Start: Soft-start feature reduces inrush current during power-up.
5. Protection Features: Offers built-in protection mechanisms such as over-current protection and thermal shutdown.
6. High Frequency Operation: Capable of operating at high frequencies to support compact designs.
7. Programmable Dead Time: Allows for the adjustment of dead time to optimize performance for specific applications.
8. Low Power Consumption: Designed to minimize power usage in standby and active modes.
9. Output Control: Allows for precise control of power delivery to the load.
These features make the UC3875DWPTR suitable for use in a variety of power supply applications, including DC-DC converters and other power management systems.
Pinout
Key functionalities include current sensing, error amplification, and providing a precise reference voltage for system stability. The specific pin functions usually include power supply input, ground, output for PWM signal, current sense input, voltage feedback, and other ancillary functions to support its operation. Always refer to the specific datasheet for detailed pin configuration and functionalities, as variations can exist between manufacturers.
Manufacturer
Application
1. Switch Mode Power Supplies (SMPS): For efficient DC-to-DC conversion with minimal power loss.
2. Telecommunications: Provides reliable power management for telecommunication systems.
3. Servers and Data Centers: Ensures energy-efficient power conversion in high-performance computing environments.
4. Industrial Power Systems: Suitable for controlling power in industrial equipment.
5. Consumer Electronics: Used in devices requiring efficient power management.
Its phase-shift PWM control reduces electromagnetic interference and enhances efficiency, making it suitable for applications demanding high power density and reliability.