UC2844BD1013TR

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UC2844BD1013TR

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputType Transistor Driver
Function Step-Up, Step-Up/Step-Down
OutputConfiguration Positive, Isolation Capable
Topology Boost, Flyback
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 10V ~ 30V
Frequency-Switching Up to 500kHz
DutyCycle(Max) 48%
SynchronousRectifier No
ClockSync No
ControlFeatures Frequency Control
OperatingTemperature -25°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The UC2844BD1013TR is a highly efficient and versatile PWM (Pulse Width Modulation) controller designed for managing power supplies and converters. It is part of the UC284x series, which is known for its reliability in controlling switch-mode power supplies. Key features of the UC2844BD1013TR include high performance and low standby power, which make it ideal for efficient power management in various applications.
This integrated circuit operates with a fixed frequency and can be used in both low-power and high-power applications. It includes features such as undervoltage lockout, current limiting, and thermal shutdown to protect the system from potential damage. Moreover, it offers a wide range of operating voltages and temperatures, making it suitable for diverse environments.
The UC2844BD1013TR is typically used in applications like power adapters, battery chargers, and other electronic devices requiring efficient power conversion. Its robust performance and protection features make it a popular choice for engineers designing reliable and efficient power supply systems.

Features

The UC2844BD1013TR is a high-performance fixed-frequency current-mode PWM controller. Key features include:
1. Operating Voltage Range: It supports an input voltage range suitable for powering various applications.
2. High-Frequency Operation: The device operates at a fixed frequency, enabling efficient performance in power supply designs.
3. Current Mode Control: It provides peak current mode control, enhancing the response to line and load transients.
4. Low Start-Up Current: The controller is designed with a low start-up current, improving efficiency and reducing power loss during start-up.
5. Undervoltage Lockout (UVLO): It includes UVLO functionality to ensure the system operates only when the input voltage is above a certain threshold, protecting against undervoltage conditions.
6. Output Drive: The UC2844BD1013TR features a totem-pole output stage that can drive power MOSFETs effectively.
7. Short Circuit Protection: Offers protection features against short circuits, enhancing the reliability of the system.
8. Temperature Range: It operates over a wide temperature range, making it suitable for various environmental conditions.
These features make the UC2844BD1013TR suitable for diverse applications such as DC-DC converters, power supplies, and other power management systems.

Package

The UC2844BD1013TR is a DC-DC controller IC typically used for power supply applications. It is commonly available in a SOIC-8 (Small Outline Integrated Circuit) package, which is a surface-mount package type with 8 pins. This package is designed for compact and efficient board utilization, suitable for automated assembly processes.

Pinout

The UC2844BD1013TR is a fixed-frequency PWM controller designed for off-line and DC-to-DC converter applications. It typically comes in an 8-pin package. Here are the pin functions:
1. Compensation (COMP): This pin is used to stabilize the control loop with external components.
2. Voltage Feedback (VFB): The inverting input of the error amplifier. It is used to regulate output voltage by comparing it with a reference voltage.
3. Current Sense (CS): Monitors the current through the power switch and provides overcurrent protection.
4. RT/CT: A timing resistor and capacitor are connected to this pin to set the oscillator frequency.
5. Ground (GND): Reference point for all voltages in the device.
6. Output (OUT): Drives the gate of the external power MOSFET or IGBT.
7. VCC: Supply voltage for the IC.
8. Voltage Reference (VREF): Provides a precise 5V reference voltage for internal circuitry and external use.
This configuration allows the UC2844BD1013TR to efficiently manage power supply operations with features like current limiting and frequency control.

Manufacturer

The UC2844BD1013TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a broad range of semiconductor products. It serves customers across the spectrum of electronics applications with innovative semiconductor solutions. The company operates in various segments, including automotive, industrial, personal electronics, communications equipment, and internet of things. STMicroelectronics is known for its strong focus on research and development, which helps them maintain a competitive edge in a rapidly evolving industry.

Application

The UC2844BD1013TR is a current-mode PWM controller primarily used in power supply applications. Key application areas include switch-mode power supplies (SMPS), DC-DC converters, and power regulation systems. It's suitable for use in consumer electronics, industrial control systems, and any application requiring efficient power management with features like current limiting and frequency jittering for better EMI performance.

Equivalent

The UC2844BD1013TR is a current-mode PWM controller. Equivalent products include the UC3844, LM2844, and MC33025. These components are generally used in similar applications like switch-mode power supplies and can serve as substitutes depending on specific design requirements. Always verify the electrical characteristics and pin configuration to ensure compatibility in your application.

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