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UC2846N
+StücklisteIC REG CTRLR MULT TOPOLOGY 16DIP
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HerstellerTexas Instruments
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Herstellerteil #UC2846N
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Datenblatt UC2846N DataSheet
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Paket PDIP-16
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Auf Lager2419
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
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Spezifikationen
| Attribut | Wert |
| Package | Bulk,Tube |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 6.95V ~ 40V |
| Frequency-Switching | 500kHz |
| DutyCycle(Max) | 50% |
| SynchronousRectifier | Yes |
| ClockSync | Yes |
| ControlFeatures | Current Limit, Enable, Frequency Control, Soft Start |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Through Hole |
| Package/Case | 16-DIP (0.300, 7.62mm) |
Übersicht
Description
With built-in protection features such as overcurrent protection and under-voltage lockout, the UC2846N enhances system reliability and safety. Its design also includes error amplifiers and a voltage reference, which help maintain stability and accuracy in output voltage regulation. This controller is commonly used in industrial, consumer electronics, and telecommunications applications, where precise power management is crucial. The UC2846N is available in a standard DIP package, facilitating easy integration into various circuit designs. Its robust functionality and reliability make it a popular choice for engineers designing advanced power supply systems.
Equivalent
1. TL494
2. SG3525
3. LM3524
4. UC3846
These alternatives offer similar functionalities and can be considered depending on the specific requirements of the application such as voltage ratings, frequency, and additional features. Always check the datasheets for compatibility.
Features
1. Dual Output: It supports dual alternating outputs, which are ideal for push-pull and half-bridge converters.
2. High Performance: Offers a wide operating frequency range up to 500 kHz, making it suitable for high-frequency applications.
3. Precision Voltage Reference: Features an accurate 5V reference voltage with minimal temperature drift, ensuring reliability and stability in operation.
4. Current Limiting: Incorporates current limiting capabilities to protect against overcurrent conditions, enhancing the safety and longevity of your power supply circuits.
5. Under-Voltage Lockout (UVLO): Protects the system by shutting down the outputs until a safe voltage level is reached, preventing damage during start-up and shutdown.
6. Low Start-Up Current: Minimizes power consumption during start-up phases.
7. Soft-Start Capability: Gradually increases output voltage during start-up, reducing stress on components.
These features make the UC2846N a solid choice for robust and efficient power supply design.
Pinout
Here's a brief overview of its pin functions:
1. Compensation (COMP): Used for error amplifier compensation.
2. Voltage Feedback (VFB): Input for voltage feedback.
3. Current Sense (ISENSE): Used for current sensing.
4. RT/CT: Timing resistor and capacitor for setting the oscillator frequency.
5. Ground (GND): Ground reference for the IC.
6. Output (OUTA): Output for controlling external power devices.
7. Output (OUTB): Second output for controlling external power devices.
8. VCC: Supply voltage for the controller.
9. Shutdown (SD): Input for shutting down the output.
10. Reference Output (REF): Provides a reference voltage output.
11. Soft Start (SS): Used for soft-starting the PWM to prevent inrush current.
12. Sync (SYNC): Synchronization input for multiple controllers.
13. Frequency Set (FSET): Sets the switching frequency.
14. Error Amplifier Inverting Input (EAIN-): Inverting input for the error amplifier.
15. Error Amplifier Non-Inverting Input (EAIN+): Non-inverting input for the error amplifier.
16. Power Ground (PGND): Ground for power connections.
This IC provides precise control of power devices, enabling efficient power management in various applications.
Manufacturer
Application
1. DC-DC Converters: It regulates output voltage in step-up/down converters.
2. AC-DC Power Supplies: Utilized in converting AC mains to regulated DC output.
3. Battery Chargers: Provides controlled charging with overcurrent protection.
4. Motor Drives: Facilitates efficient motor control and regulation.
5. Power Management Systems: Part of advanced power distribution systems for optimized power use.
Its features, like high-speed operation and adjustable duty cycle, make it versatile for various industrial and consumer electronics applications.