사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Applications | Transformer Driver |
| Supply Current | 450µA |
| Voltage - Supply | 3.3V, 5V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
개요
Description
The MAX253CSA+T is a surface-mount, miniature DC-DC transformer driver IC, primarily used in isolated power supply applications. It is part of the MAX253 family from Maxim Integrated, designed to efficiently drive center-tapped transformers with push-pull outputs. Operating from a single 3V to 5.5V supply, the MAX253CSA+T supports both unregulated and regulated outputs and can deliver isolated power up to 3W.
Key features include:
- Adjustable output voltage through external resistors.
- Internal 400kHz oscillator for high-frequency switching, reducing the size of external components.
- Low power consumption with typical quiescent current around 4mA.
- Integrated thermal shutdown and current limiting for enhanced reliability.
- Compact 8-pin SOIC package, making it suitable for space-constrained applications.
The MAX253CSA+T is commonly used in applications such as data communication interfaces, medical instrumentation, and industrial control systems where power isolation is necessary. Its compact design and efficiency make it ideal for low-power, isolated power supply solutions.
Key features include:
- Adjustable output voltage through external resistors.
- Internal 400kHz oscillator for high-frequency switching, reducing the size of external components.
- Low power consumption with typical quiescent current around 4mA.
- Integrated thermal shutdown and current limiting for enhanced reliability.
- Compact 8-pin SOIC package, making it suitable for space-constrained applications.
The MAX253CSA+T is commonly used in applications such as data communication interfaces, medical instrumentation, and industrial control systems where power isolation is necessary. Its compact design and efficiency make it ideal for low-power, isolated power supply solutions.
Equivalent
The MAX253CSA+T is a DC-DC converter from Maxim Integrated, used in isolated power supply applications. Equivalent products include the Texas Instruments SN6505B, Analog Devices ADuM5020, and the NXP Semiconductors TJA1051T. These components are similar in functionality and can be used as substitutes in similar applications, but always verify pin compatibility and electrical specifications before substitution.
Features
The MAX253CSA+T is a high-performance, isolated, transformer driver IC designed by Maxim Integrated. It features a nominal output power of 2W and is optimized for isolated power supplies. Key features include:
1. Wide Input Voltage Range: The IC supports a broad input voltage range, typically from 3V to 5.5V, making it versatile for various applications.
2. High Efficiency: It offers high power conversion efficiency, helping to minimize power loss and thermal issues.
3. Push-Pull Driver: The device employs a push-pull driver architecture, which enhances power delivery to the transformer.
4. Switching Frequency: It operates at a fixed frequency of around 500kHz, reducing electromagnetic interference and allowing for smaller transformer sizes.
5. Integrated Protection: It includes features like thermal shutdown and current limiting to protect the device from over-temperature and over-current conditions.
6. Compact Package: The MAX253CSA+T is available in a compact 8-pin SOIC package, making it suitable for space-constrained designs.
These features make the MAX253CSA+T ideal for applications requiring reliable isolation and efficient power delivery.
1. Wide Input Voltage Range: The IC supports a broad input voltage range, typically from 3V to 5.5V, making it versatile for various applications.
2. High Efficiency: It offers high power conversion efficiency, helping to minimize power loss and thermal issues.
3. Push-Pull Driver: The device employs a push-pull driver architecture, which enhances power delivery to the transformer.
4. Switching Frequency: It operates at a fixed frequency of around 500kHz, reducing electromagnetic interference and allowing for smaller transformer sizes.
5. Integrated Protection: It includes features like thermal shutdown and current limiting to protect the device from over-temperature and over-current conditions.
6. Compact Package: The MAX253CSA+T is available in a compact 8-pin SOIC package, making it suitable for space-constrained designs.
These features make the MAX253CSA+T ideal for applications requiring reliable isolation and efficient power delivery.
Pinout
The MAX253CSA+T is an 8-pin IC used primarily as a DC-DC converter from Maxim Integrated, designed to work as a push-pull transformer driver. Here is a brief overview of its pin configuration and functions:
1. Pin 1 (OUTA): Output A - Connects to one end of the primary winding of the transformer.
2. Pin 2 (VSS): Ground - Connects to the system ground.
3. Pin 3 (OSC): Oscillator - A resistor connected to this pin sets the oscillation frequency.
4. Pin 4 (CT): Capacitor Timing - A capacitor connected here sets the timing for the switching frequency.
5. Pin 5 (VDD): Supply Voltage - Connects to the positive supply voltage.
6. Pin 6 (IN): Input - Drives the input of the transformer.
7. Pin 7 (OUTB): Output B - Connects to the other end of the primary winding of the transformer.
8. Pin 8 (SHDN): Shutdown - When low, it shuts down the device to reduce power consumption.
The MAX253CSA+T is designed for efficient transformer driving in isolated power supply applications, such as RS-232/RS-485 transceivers.
1. Pin 1 (OUTA): Output A - Connects to one end of the primary winding of the transformer.
2. Pin 2 (VSS): Ground - Connects to the system ground.
3. Pin 3 (OSC): Oscillator - A resistor connected to this pin sets the oscillation frequency.
4. Pin 4 (CT): Capacitor Timing - A capacitor connected here sets the timing for the switching frequency.
5. Pin 5 (VDD): Supply Voltage - Connects to the positive supply voltage.
6. Pin 6 (IN): Input - Drives the input of the transformer.
7. Pin 7 (OUTB): Output B - Connects to the other end of the primary winding of the transformer.
8. Pin 8 (SHDN): Shutdown - When low, it shuts down the device to reduce power consumption.
The MAX253CSA+T is designed for efficient transformer driving in isolated power supply applications, such as RS-232/RS-485 transceivers.
Manufacturer
The MAX253CSA+T is manufactured by Maxim Integrated, which is now a part of Analog Devices, Inc. Maxim Integrated, before its acquisition, was known for designing and manufacturing analog and mixed-signal integrated circuits for a wide range of applications. The company specialized in power management, interface, battery management, and other ICs that serve industries including automotive, industrial, communications, consumer, and healthcare.
Analog Devices, Inc., the parent company, is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. It serves a broad array of markets and applications, providing high-performance solutions in areas such as data conversion, signal processing, RF, power management, and sensor technology. The merger of Maxim Integrated into Analog Devices has expanded the product portfolio and strengthened its position in the semiconductor industry.
Analog Devices, Inc., the parent company, is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. It serves a broad array of markets and applications, providing high-performance solutions in areas such as data conversion, signal processing, RF, power management, and sensor technology. The merger of Maxim Integrated into Analog Devices has expanded the product portfolio and strengthened its position in the semiconductor industry.
Application
The MAX253CSA+T is an integrated DC-DC converter typically used in applications requiring isolated power supply solutions. Key application areas include providing isolated power for RS-485 and RS-232 transceivers, powering isolated data acquisition systems, and supplying power to industrial control systems. It's also used in telecommunications equipment and other applications where galvanic isolation is necessary to prevent ground loops, improve noise immunity, or protect sensitive components from high voltage transients. Its compact size and efficiency make it suitable for embedded systems and other space-constrained applications.
Package
The MAX253CSA+T is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is a surface-mount type, suitable for compact circuit board designs.
