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UC2825ADW
+BOMIC REG CTRLR MULT TOP 16SOIC
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #UC2825ADW
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データシート UC2825ADW DataSheet
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在庫状況4279
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| Number of Outputs | 2 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 8.4V ~ 22V |
| Frequency - Switching | 400kHz ~ 1MHz |
| Duty Cycle (Max) | 50% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Current Limit, Frequency Control, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 16-SOIC |
| Base Product Number | UC2825 |
概要
Description
The UC2825ADW is a high-performance pulse width modulation (PWM) controller designed for use in power supply switching applications. It features a wide input voltage range, typically from 10 to 30 V, making it suitable for various power supply designs. The device includes an adjustable frequency oscillator, allowing for flexible operation between 100 kHz and 500 kHz.
Key features of the UC2825ADW include dual outputs for driving power MOSFETs, a soft-start function to minimize inrush current, and built-in overcurrent protection. The controller operates in a voltage mode, providing improved transient response and stability. Its error amplifier allows for precise regulation of output voltage.
The UC2825ADW is commonly used in applications such as DC-DC converters, battery chargers, and power factor correction systems. Its robust design ensures reliable performance in demanding environments, making it a popular choice among engineers for efficient power management solutions.
Key features of the UC2825ADW include dual outputs for driving power MOSFETs, a soft-start function to minimize inrush current, and built-in overcurrent protection. The controller operates in a voltage mode, providing improved transient response and stability. Its error amplifier allows for precise regulation of output voltage.
The UC2825ADW is commonly used in applications such as DC-DC converters, battery chargers, and power factor correction systems. Its robust design ensures reliable performance in demanding environments, making it a popular choice among engineers for efficient power management solutions.
Equivalent
The UC2825ADW is a PWM controller used in power supply applications. Equivalent products include:
1. TL494 - A popular PWM controller with similar functionalities.
2. LM3478 - Offers higher efficiency with integrated features.
3. UC3842 - A current-mode PWM controller with a simpler architecture.
4. SG3525 - Another versatile PWM controller with additional features.
Check specific datasheets for detailed compatibility and features.
1. TL494 - A popular PWM controller with similar functionalities.
2. LM3478 - Offers higher efficiency with integrated features.
3. UC3842 - A current-mode PWM controller with a simpler architecture.
4. SG3525 - Another versatile PWM controller with additional features.
Check specific datasheets for detailed compatibility and features.
Features
The UC2825ADW is a high-performance PWM (Pulse Width Modulation) controller designed for power supply applications. Key features include:
1. Voltage Regulation: It offers precise control of output voltage through feedback mechanisms.
2. High-Frequency Operation: Capable of operating at frequencies up to 500 kHz, allowing for smaller inductors and capacitors.
3. Current Mode Control: Supports both voltage and current mode control for improved transient response and stability.
4. Integrated Soft Start: Reduces inrush current and allows gradual buildup of output voltage.
5. Error Amplifier: Features a built-in error amplifier that simplifies feedback loop design.
6. Protection Features: Includes over-voltage protection, under-voltage lockout, and thermal shutdown capabilities.
7. Dual Output Drivers: Provides a pair of totem pole output drivers to control external MOSFETs efficiently.
8. Wide Supply Voltage Range: Operates from a wide input voltage range, enhancing versatility in various applications.
These features make the UC2825ADW suitable for applications like switch-mode power supplies and DC-DC converters.
1. Voltage Regulation: It offers precise control of output voltage through feedback mechanisms.
2. High-Frequency Operation: Capable of operating at frequencies up to 500 kHz, allowing for smaller inductors and capacitors.
3. Current Mode Control: Supports both voltage and current mode control for improved transient response and stability.
4. Integrated Soft Start: Reduces inrush current and allows gradual buildup of output voltage.
5. Error Amplifier: Features a built-in error amplifier that simplifies feedback loop design.
6. Protection Features: Includes over-voltage protection, under-voltage lockout, and thermal shutdown capabilities.
7. Dual Output Drivers: Provides a pair of totem pole output drivers to control external MOSFETs efficiently.
8. Wide Supply Voltage Range: Operates from a wide input voltage range, enhancing versatility in various applications.
These features make the UC2825ADW suitable for applications like switch-mode power supplies and DC-DC converters.
Pinout
The UC2825ADW is a high-performance PWM (Pulse Width Modulation) controller used in various power supply applications. It has a total of 16 pins.
Here is a concise breakdown of its pin functions:
1. VCC (Pin 1): Supply voltage.
2. GND (Pin 2): Ground reference.
3. CSN (Pin 3): Current sense negative input.
4. CSP (Pin 4): Current sense positive input.
5. RAMP (Pin 5): Ramp voltage input for PWM.
6. COMP (Pin 6): Compensation network connection.
7. CT (Pin 7): Timing capacitor connection for oscillator.
8. RT (Pin 8): Timing resistor connection for oscillator.
9. SOFT (Pin 9): Soft-start connection.
10. INV (Pin 10): Inverting input for error amplifier.
11. NONINV (Pin 11): Non-inverting input for error amplifier.
12. GATE (Pin 12): Output to drive the power switch.
13. VREF (Pin 13): Reference voltage output.
14. ISENSE (Pin 14): Current sense input.
15. DTC (Pin 15): Dead time control input.
16. DRAIN (Pin 16): Connection for the power switch.
This configuration allows the UC2825ADW to effectively manage switching power supplies and converters.
Here is a concise breakdown of its pin functions:
1. VCC (Pin 1): Supply voltage.
2. GND (Pin 2): Ground reference.
3. CSN (Pin 3): Current sense negative input.
4. CSP (Pin 4): Current sense positive input.
5. RAMP (Pin 5): Ramp voltage input for PWM.
6. COMP (Pin 6): Compensation network connection.
7. CT (Pin 7): Timing capacitor connection for oscillator.
8. RT (Pin 8): Timing resistor connection for oscillator.
9. SOFT (Pin 9): Soft-start connection.
10. INV (Pin 10): Inverting input for error amplifier.
11. NONINV (Pin 11): Non-inverting input for error amplifier.
12. GATE (Pin 12): Output to drive the power switch.
13. VREF (Pin 13): Reference voltage output.
14. ISENSE (Pin 14): Current sense input.
15. DTC (Pin 15): Dead time control input.
16. DRAIN (Pin 16): Connection for the power switch.
This configuration allows the UC2825ADW to effectively manage switching power supplies and converters.
Manufacturer
The UC2825ADW is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing analog and embedded processing chips. The company is well-known for its innovations in various electronic components, including operational amplifiers, microcontrollers, and digital signal processors, which serve a wide range of applications such as automotive, industrial, communications, and consumer electronics.
Founded in 1930, Texas Instruments has evolved from its origins in geophysical exploration to become a leader in the semiconductor industry. The company is heavily invested in research and development, consistently delivering advanced technologies that enable various electronic devices and systems. TI also places a strong emphasis on sustainability and corporate responsibility, striving to minimize its environmental impact and foster community engagement.
Overall, Texas Instruments is recognized for its reliable products, extensive technical support, and commitment to innovation, making it a key player in the global electronics market.
Founded in 1930, Texas Instruments has evolved from its origins in geophysical exploration to become a leader in the semiconductor industry. The company is heavily invested in research and development, consistently delivering advanced technologies that enable various electronic devices and systems. TI also places a strong emphasis on sustainability and corporate responsibility, striving to minimize its environmental impact and foster community engagement.
Overall, Texas Instruments is recognized for its reliable products, extensive technical support, and commitment to innovation, making it a key player in the global electronics market.
Application
The UC2825ADW is a high-performance PWM (Pulse Width Modulation) controller primarily used in power supply applications. Its key application areas include:
1. DC-DC Converters: Used in buck, boost, and buck-boost converters for efficient voltage regulation.
2. Switching Power Supplies: Employed in both industrial and consumer electronics to convert AC to DC or regulate voltage levels.
3. Battery Chargers: Facilitates controlled charging processes for various battery types.
4. Motor Drives: Utilized in controlling the speed and torque of DC and brushless motors.
5. Renewable Energy Systems: Applies in solar inverters and wind turbine controllers for energy conversion and management.
Overall, it enhances efficiency and performance in various power management scenarios.
1. DC-DC Converters: Used in buck, boost, and buck-boost converters for efficient voltage regulation.
2. Switching Power Supplies: Employed in both industrial and consumer electronics to convert AC to DC or regulate voltage levels.
3. Battery Chargers: Facilitates controlled charging processes for various battery types.
4. Motor Drives: Utilized in controlling the speed and torque of DC and brushless motors.
5. Renewable Energy Systems: Applies in solar inverters and wind turbine controllers for energy conversion and management.
Overall, it enhances efficiency and performance in various power management scenarios.
Package
The UC2825ADW is packaged in an 8-pin Dual In-Line Package (DIP).
