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UCC2895DWTR
+BOMIC OFFLINE SW FULL-BRDG 20SOIC
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ManufacturerTexas Instruments
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Mfr. Part #UCC2895DWTR
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Package SOIC (DW)-20
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In Stock7657
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| OutputType | PWM |
| OutputConfiguration | Positive |
| Topology | Phase-Shifted Full-Bridge |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 10V ~ 16.5V |
| Frequency-Switching | 1MHz |
| DutyCycle(Max) | 100% |
| ClockSync | Yes |
| ControlFeatures | Frequency Control, Soft Start, Sync |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 20-SOIC (0.295, 7.50mm Width) |
Overview
Description
Equivalent
1. UCC28950 – An advanced phase-shifted full-bridge controller from Texas Instruments with improved features.
2. UC3875 – A similar PWM controller from Texas Instruments.
3. LTC3723 – A phase-shifted full-bridge controller from Analog Devices (formerly Linear Technology).
4. NCP5392 – A phase-shifted PWM controller by ON Semiconductor.
Each alternative varies slightly in terms of features and specifications, so reviewing datasheets for compatibility is recommended.
Features
1. Phase-Shift Control: Provides zero-voltage switching (ZVS) to minimize switching losses and improve efficiency.
2. Wide Input Voltage Range: Supports a broad range of input voltages, making it versatile for various applications.
3. Programmable Dead Time: Allows customization of the dead time between switching transitions to optimize performance.
4. Integrated Current Sense Amplifier: Facilitates current mode control for enhanced transient response and stability.
5. Synchronization Capability: Supports synchronization with an external clock for multiple controller operation.
6. Soft-Start Function: Gradually increases output to prevent inrush current during startup.
7. Overcurrent Protection: Protects the system from excessive current, ensuring reliability.
8. Adjustable Output: Offers flexibility in setting output voltage levels to meet specific application needs.
9. Compact SOIC-20 Package: Provides a space-saving solution suitable for compact designs.
These features make the UCC2895DWTR ideal for applications requiring high efficiency, reliability, and flexibility in power management.
Pinout
This IC comes in a 20-pin SOIC (DW) package. Here is a concise overview of its pin functions:
1. VREF: Reference voltage output.
2. VDD: Supply voltage input.
3. RT: Timing resistor for setting the frequency.
4. CT: Timing capacitor for the oscillator.
5. SYNC: Synchronization input/output for clock signals.
6. CS: Current sense input for overcurrent protection.
7. EA+ and EA-: Error amplifier non-inverting and inverting inputs.
8. COMP: Compensation for the error amplifier.
9. SS: Soft start control.
10. ILIM: Current limit setting.
11. OUTA, OUTB, OUTC, OUTD: PWM output drive signals.
12. PGND: Power ground.
13. AGND: Analog ground.
14. DELAY: Sets delay for phase shifting.
15. SYNC_OUT: Synchronization output.
16. RAMP: Voltage ramp input for PWM modulation.
17. NC: No connection or not internally connected.
This concise summary outlines the essential pin functions for the UCC2895DWTR PWM controller.