Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Push-Pull |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 8V ~ 35V |
| Frequency-Switching | 100Hz ~ 400kHz |
| DutyCycle(Max) | 49% |
| SynchronousRectifier | Yes |
| ClockSync | Yes |
| ControlFeatures | Enable, Frequency Control, Soft Start |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Through Hole |
| Package/Case | 16-DIP (0.300, 7.62mm) |
Overview
Description
The SG3525ANG is a pulse width modulation (PWM) controller designed for efficient power supply and motor control applications. It is an integrated circuit that provides all the necessary features to implement switching power supplies and DC-DC converters. Key components include an oscillator, a voltage reference, an error amplifier, and a PWM comparator, which work together to regulate output voltage and current.
The SG3525ANG is known for its versatility and ease of use, featuring a wide supply voltage range (8V to 35V) and the ability to drive both N-channel and P-channel MOSFETs. It includes built-in protection mechanisms, such as overcurrent protection and soft-start capabilities, which enhance the reliability and safety of power management systems.
The device is commonly used in applications like inverters, battery chargers, and power management systems, offering precise control over power conversion with minimal external components. Its robust design and adaptability make it a popular choice for engineers looking to develop efficient and reliable power control solutions.
The SG3525ANG is known for its versatility and ease of use, featuring a wide supply voltage range (8V to 35V) and the ability to drive both N-channel and P-channel MOSFETs. It includes built-in protection mechanisms, such as overcurrent protection and soft-start capabilities, which enhance the reliability and safety of power management systems.
The device is commonly used in applications like inverters, battery chargers, and power management systems, offering precise control over power conversion with minimal external components. Its robust design and adaptability make it a popular choice for engineers looking to develop efficient and reliable power control solutions.
Equivalent
The SG3525ANG is a PWM controller used for switch-mode power supplies and inverters. Equivalent products include:
1. TL494 - A PWM controller with similar functions and features.
2. KA3525A - A direct equivalent to the SG3525.
3. UC3525 - A similar PWM controller from Texas Instruments.
4. LM3525 - Another similar device in function and application.
5. MC3525 - A variant by ON Semiconductor.
These alternatives offer similar performance and function for power control applications.
1. TL494 - A PWM controller with similar functions and features.
2. KA3525A - A direct equivalent to the SG3525.
3. UC3525 - A similar PWM controller from Texas Instruments.
4. LM3525 - Another similar device in function and application.
5. MC3525 - A variant by ON Semiconductor.
These alternatives offer similar performance and function for power control applications.
Features
The SG3525ANG is a versatile PWM (Pulse Width Modulation) controller typically used in power supply and motor control applications. Key features include:
1. Wide Supply Voltage Range: Operates from 8V to 35V, making it adaptable to various power sources.
2. Adjustable Output Pulse Width: Provides flexibility in controlling the duty cycle.
3. Dual Output: Includes two outputs for push-pull or single-ended configurations.
4. Oscillator: Internal oscillator with adjustable frequency (100 Hz to 400 kHz) through external resistors and capacitors.
5. Soft-Start Capability: Smoothly increases duty cycle at startup to prevent inrush current.
6. Shutdown Feature: Quick shutdown option for safety and control.
7. Error Amplifier: Built-in error amplifier for precise voltage regulation.
8. Under-Voltage Lockout (UVLO): Ensures the controller operates only when the supply voltage is adequate.
9. Current Limiting: Provides protection against overcurrent conditions.
10. Synchronization: Allows for operation in synchronized systems.
These features make the SG3525ANG suitable for efficient and reliable power conversion applications.
1. Wide Supply Voltage Range: Operates from 8V to 35V, making it adaptable to various power sources.
2. Adjustable Output Pulse Width: Provides flexibility in controlling the duty cycle.
3. Dual Output: Includes two outputs for push-pull or single-ended configurations.
4. Oscillator: Internal oscillator with adjustable frequency (100 Hz to 400 kHz) through external resistors and capacitors.
5. Soft-Start Capability: Smoothly increases duty cycle at startup to prevent inrush current.
6. Shutdown Feature: Quick shutdown option for safety and control.
7. Error Amplifier: Built-in error amplifier for precise voltage regulation.
8. Under-Voltage Lockout (UVLO): Ensures the controller operates only when the supply voltage is adequate.
9. Current Limiting: Provides protection against overcurrent conditions.
10. Synchronization: Allows for operation in synchronized systems.
These features make the SG3525ANG suitable for efficient and reliable power conversion applications.
Pinout
The SG3525ANG is a pulse width modulation (PWM) controller IC commonly used in switch-mode power supplies and other power control applications. It is typically housed in a 16-pin dual in-line package (DIP).
Here is a brief overview of the pin functions:
1. Inverting Input (Pin 1): Inverting input of the error amplifier.
2. Non-Inverting Input (Pin 2): Non-inverting input of the error amplifier.
3. Oscillator Timing Capacitor (Pin 3): Connection for the timing capacitor.
4. Oscillator Timing Resistor (Pin 4): Connection for the timing resistor.
5. Soft Start (Pin 5): Soft start control.
6. Dead Time Control (Pin 6): Sets the dead time between outputs.
7. Output Control (Pin 7): Controls the output configuration.
8. VREF (Pin 8): Reference voltage output.
9. Compensation (Pin 9): Compensation for the error amplifier.
10. Shutdown (Pin 10): Shuts down the PWM outputs.
11. Ground (Pin 11): Ground reference.
12. Emitter Output (Pin 12): Emitter output for the totem-pole output stage.
13. Collector Output (Pin 13): Collector output for the totem-pole output stage.
14. VCC (Pin 14): Supply voltage input.
15. A Output (Pin 15): A-channel PWM output.
16. B Output (Pin 16): B-channel PWM output.
These functions allow the SG3525ANG to generate precise PWM signals for controlling power electronic devices.
Here is a brief overview of the pin functions:
1. Inverting Input (Pin 1): Inverting input of the error amplifier.
2. Non-Inverting Input (Pin 2): Non-inverting input of the error amplifier.
3. Oscillator Timing Capacitor (Pin 3): Connection for the timing capacitor.
4. Oscillator Timing Resistor (Pin 4): Connection for the timing resistor.
5. Soft Start (Pin 5): Soft start control.
6. Dead Time Control (Pin 6): Sets the dead time between outputs.
7. Output Control (Pin 7): Controls the output configuration.
8. VREF (Pin 8): Reference voltage output.
9. Compensation (Pin 9): Compensation for the error amplifier.
10. Shutdown (Pin 10): Shuts down the PWM outputs.
11. Ground (Pin 11): Ground reference.
12. Emitter Output (Pin 12): Emitter output for the totem-pole output stage.
13. Collector Output (Pin 13): Collector output for the totem-pole output stage.
14. VCC (Pin 14): Supply voltage input.
15. A Output (Pin 15): A-channel PWM output.
16. B Output (Pin 16): B-channel PWM output.
These functions allow the SG3525ANG to generate precise PWM signals for controlling power electronic devices.
Manufacturer
The SG3525ANG is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. The company serves various markets, including industrial, automotive, personal electronics, communications equipment, and computers. STMicroelectronics focuses on delivering innovative solutions and technologies that enable smarter driving and smart industry applications. They have a significant presence worldwide and are known for their expertise in electronic and semiconductor technologies.
Application
The SG3525ANG is a pulse width modulation (PWM) controller used in various power management applications. Its primary application areas include:
1. Switching Power Supplies: It is commonly used in designing efficient DC-DC converters and AC-DC power supplies for consumer electronics and industrial systems.
2. Battery Chargers: The controller's precise regulation capabilities make it suitable for rechargeable battery charging systems.
3. Inverters: It is often utilized in inverter circuits for converting DC to AC, applicable in solar power systems and motor drives.
4. Motor Control: The SG3525ANG can be used in controlling motors within variable speed drives due to its PWM modulation capabilities.
These applications benefit from the device's high performance, flexibility, and reliability in controlling power electronic systems.
1. Switching Power Supplies: It is commonly used in designing efficient DC-DC converters and AC-DC power supplies for consumer electronics and industrial systems.
2. Battery Chargers: The controller's precise regulation capabilities make it suitable for rechargeable battery charging systems.
3. Inverters: It is often utilized in inverter circuits for converting DC to AC, applicable in solar power systems and motor drives.
4. Motor Control: The SG3525ANG can be used in controlling motors within variable speed drives due to its PWM modulation capabilities.
These applications benefit from the device's high performance, flexibility, and reliability in controlling power electronic systems.
Package
The SG3525ANG is typically available in a Dual In-line Package (DIP), specifically a 16-pin DIP. It can also be found in a Surface-Mount Device (SMD) configuration like the 16-pin SOIC package, depending on the manufacturer.
