UC3825ADWTR

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UC3825ADWTR

IC REG CTRLR MULT TOP 16SOIC

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365 일 보장

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사양

Package Tape & Reel (TR),Cut Tape (CT),Bulk
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) 8.4V ~ 22V
Frequency-Switching 400kHz ~ 1MHz
DutyCycle(Max) 50%
SynchronousRectifier No
ClockSync No
ControlFeatures Current Limit, Frequency Control, Ramp, Soft Start
OperatingTemperature 0°C ~ 70°C (TA)
MountingType Surface Mount
Package/Case 16-SOIC (0.295, 7.50mm Width)

개요

Description

The UC3825ADWTR is a high-performance PWM (Pulse Width Modulation) controller designed for efficient and precise power supply management. It is part of the UC3825A series, which is known for its advanced features tailored for a wide range of power applications. This device is typically used in power electronic systems like DC-DC converters, inverters, and other power management circuits.
Key features of the UC3825ADWTR include a wide operating frequency range, high-speed PWM circuitry, and low start-up current requirements, which enhance its efficiency in power conversion tasks. It offers precise control over duty cycles, supports soft-start, and includes built-in protection mechanisms like overcurrent protection, which helps to maintain the integrity of the powered circuit.
The UC3825ADWTR is suitable for both voltage and current mode control loops, making it versatile for different power applications. Its surface-mount package allows for compact design and efficient thermal management in space-constrained environments. Overall, the UC3825ADWTR is an essential component for engineers designing reliable and efficient power systems.

Features

The UC3825ADWTR is a high-performance pulse width modulation (PWM) controller designed for efficient power management in various applications. Key features include:
1. High-Speed Operation: Capable of operating at up to 1 MHz, allowing for fast switching speeds.
2. Programmable Output: Provides flexibility with a wide range of frequency settings through external resistors and capacitors.
3. Dual Output: Features a dual totem-pole output stage for driving power MOSFETs or IGBTs.
4. Current Limiting: Includes a peak current limiting function to protect against overcurrent conditions.
5. Undervoltage Lockout (UVLO): Ensures that the device operates only when the supply voltage is within the specified range.
6. Synchronization Capability: Can be synchronized to an external clock for applications requiring precise timing.
7. Soft Start: Offers a programmable soft-start feature to minimize inrush current during startup.
8. Wide Temperature Range: Supports operation over a broad temperature spectrum, suitable for industrial applications.
9. Low Start-Up Current: Reduces power consumption during initialization.
These features make the UC3825ADWTR suitable for a variety of power supply and motor control applications where efficiency and reliability are crucial.

Package

The UC3825ADWTR is a high-performance, current-mode PWM controller typically used in power supply applications. It is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package, also known as DW package. The "TR" suffix indicates that it is supplied in tape and reel format for automated assembly processes.

Pinout

The UC3825ADWTR is a high-speed PWM controller used in power supply designs. It comes in a 16-pin SOIC (Small Outline Integrated Circuit) package, with the following key functions for each pin:
1. 1 - COMP: Compensation for error amplifier.
2. 2 - VFB: Voltage feedback input.
3. 3 - ILIM/SD: Current limit and shutdown.
4. 4 - CS: Current sense input.
5. 5 - RT: Oscillator timing resistor.
6. 6 - CT: Oscillator timing capacitor.
7. 7 - SYNC: Synchronization input.
8. 8 - VREF: Reference output voltage.
9. 9 - EAOUT: Error amplifier output.
10. 10 - RAMP: Ramp input for PWM comparator.
11. 11 - PGND: Power ground.
12. 12 - OUTA: Output A.
13. 13 - OUTB: Output B.
14. 14 - VC: Supply voltage for output stages.
15. 15 - VCC: Supply voltage.
16. 16 - AGND: Analog ground.
These pins collectively manage the device's role in regulating power supply outputs through pulse-width modulation.

Manufacturer

The UC3825ADWTR is manufactured by Texas Instruments, an American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are used in electronic devices across diverse industries, including automotive, industrial, personal electronics, and communications. The company is one of the largest semiconductor manufacturers in the world and is headquartered in Dallas, Texas.

Application

The UC3825ADWTR is a high-performance PWM controller widely used in applications requiring efficient power management. Its primary applications include DC-DC converters, power supplies for telecommunications, industrial automation systems, and motor control systems. It is ideal for systems needing high-frequency switching, current-mode control, and reliable operation under varying loads and conditions.

Equivalent

The UC3825ADWTR is a high-speed PWM controller used in power supply applications. Equivalent products include:
1. UC3825DW - Another variant in the same series with similar specifications.
2. UC3825AN - A DIP version with comparable features.
3. LM3525A - A similar PWM controller.
4. TL494 - A popular PWM controller alternative.
5. SG3525 - Often used in similar applications as a replacement.
Ensure to verify specifications and compatibility for your specific application before substitution.

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