UC2825DWTR

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UC2825DWTR

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IC REG CTRLR MULT TOP 16SOIC

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仕様

属性
PartStatus 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) 8.4V ~ 30V
Frequency-Switching 340kHz ~ 460kHz
DutyCycle(Max) 80%
SynchronousRectifier No
ClockSync No
ControlFeatures Current Limit, Enable, Frequency Control, Ramp, Soft Start
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 16-SOIC (0.295", 7.50mm Width)
SupplierDevicePackage 16-SOIC
BaseProductNumber UC2825

概要

Description

The UC2825DWTR is a high-performance integrated circuit primarily used for power management in switching power supplies. It belongs to the UC282x family of PWM (Pulse Width Modulation) controllers designed for voltage regulation and control in DC-DC converters. The device operates with a wide input voltage range, making it suitable for various applications, including battery-operated devices and industrial power supplies.
Key features of the UC2825DWTR include:
- Current Mode Control: Enhances performance and simplifies compensation.
- Integrated Reference: Provides a stable reference voltage for accurate output control.
- Soft Start: Limits inrush current during startup, improving system reliability.
- Dead Time Control: Optimizes the switching operation and reduces cross-conduction losses.
- Wide Frequency Range: Supports adjustable switching frequencies for design flexibility.
With its robust design and efficiency, the UC2825DWTR is ideal for applications requiring reliable power conversion and regulation.

Equivalent

The UC2825DWTR is a PWM controller primarily used for power supply applications. Equivalent products include the LM5022, TL494, and SG3525. Other alternatives are the MC34063 and UC3842, depending on specific requirements such as voltage range and control type. Always verify compatibility in terms of pin configuration, operating voltage, and features before substitution.

Features

The UC2825DWTR is a voltage mode PWM (Pulse Width Modulation) controller designed for high-performance power supply applications. Key features include:
1. Voltage Mode Control: Offers stable regulation and good transient response.
2. Dual Output: Supports multiple output stages, enabling versatile applications.
3. High-Speed Operation: Capable of operating up to 500 kHz, ensuring efficient switching.
4. Integrated Soft Start: Reduces inrush current during startup, enhancing system reliability.
5. Current Limiting: Provides overcurrent protection to prevent damage.
6. Programmable Dead Time: Adjustable to optimize efficiency in specific applications.
7. High-Current Output Drivers: Capable of driving external MOSFETs directly for increased efficiency.
8. Temperature Compensated Reference: Offers stable voltage reference over a wide temperature range.
9. Wide Supply Voltage Range: Operates effectively from 10V to 30V.
These features make the UC2825DWTR suitable for applications like DC-DC converters, power supplies, and motor controls.

Pinout

The UC2825DWTR is a PWM (Pulse Width Modulation) controller from Texas Instruments, primarily used in power supply applications. It features a 20-pin Dual In-line Package (DIP) configuration.
Pin Count and Functions:
1. Pin 1 (VREF) - Reference voltage output.
2. Pin 2 (COMP) - Compensation for error amplifier.
3. Pin 3 (CSN) - Current sense negative input.
4. Pin 4 (CSP) - Current sense positive input.
5. Pin 5 (GND) - Ground.
6. Pin 6 (RT) - Timing resistor for oscillator frequency.
7. Pin 7 (CT) - Timing capacitor for oscillator frequency.
8. Pin 8 (DISCH) - Discharge pin for timing capacitor.
9. Pin 9 (SYNCH) - Synchronization input.
10. Pin 10 (SS) - Soft-start control.
11. Pin 11 (VFB) - Feedback input for the error amplifier.
12. Pin 12 (OUTA) - Output A driving the power switch.
13. Pin 13 (OUTB) - Output B, complementary to OUTA.
14. Pin 14 (ILIM) - Current limit adjustment.
15. Pin 15 (VCC) - Supply voltage input.
16. Pin 16 (HYST) - Hysteresis control.
17. Pin 17 (ANALOG GND) - Ground for analog circuitry.
18. Pin 18 (DTC) - Dead time control.
19. Pin 19 (RAMP) - Ramp voltage input for PWM.
20. Pin 20 (N/C) - No connection.
This versatile IC is utilized in switch-mode power supplies and DC-DC converters.

Manufacturer

The UC2825DWTR is manufactured by Texas Instruments, a well-known American technology company. Texas Instruments (TI) specializes in semiconductor design and manufacturing, with a strong emphasis on analog and embedded processing technologies. Founded in 1930, TI has evolved from a company focused on oil exploration to a leading global provider of semiconductor solutions, particularly in the fields of analog electronics, digital signal processing, and microcontrollers.
Texas Instruments serves a diverse range of markets, including automotive, industrial, communication, and consumer electronics, among others. The UC2825DWTR is a PWM (Pulse Width Modulation) controller, commonly used in power management applications, such as DC-DC converters and power supplies. TI's broad portfolio of products, along with its commitment to innovation and quality, positions it as a key player in the semiconductor industry.

Application

The UC2825DWTR is a versatile PWM controller primarily used in power supply applications. Key areas include:
1. Switching Power Supplies: It regulates output voltage in DC-DC converters.
2. DC Motor Control: It manages speed and torque in motor drives.
3. Battery Chargers: It optimizes charging processes for various battery types.
4. LED Drivers: It provides efficient power management for LED lighting systems.
5. Renewable Energy Systems: It is utilized in solar inverters and wind power applications.
Its features include peak current limiting, adjustable frequency, and soft start, making it suitable for these applications.

Package

The UC2825DWTR is available in a 20-pin TSSOP (Thin Shrink Small Outline Package) package type. This surface-mount package is designed for compact applications, providing space-saving benefits while maintaining performance for power management and control functions.

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