LTC4245CUHF#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High Efficiency - Low Quiescent Current - Wide Input Voltage Range - Overvoltage and Undervoltage Protection - Thermal Shutdown Protection

Package: 38-Lead QFN

Essence: The LTC4245CUHF#PBF is a power management IC designed for high efficiency and low quiescent current operation. It provides overvoltage and undervoltage protection, as well as thermal shutdown protection.

Packaging/Quantity: The LTC4245CUHF#PBF is available in a 38-Lead QFN package. It is typically sold in reels of 250 units.

Specifications

• Input Voltage Range: 2.9V to 80V
• Output Voltage Range: 0.8V to 80V
• Quiescent Current: 20µA
• Operating Temperature Range: -40°C to 125°C
• Maximum Power Dissipation: 1.25W

Detailed Pin Configuration

The LTC4245CUHF#PBF has a total of 38 pins. The pin configuration is as follows:

1. VIN
2. GND
3. VOUT
4. EN
5. PG
6. FLT
7. OV
8. UV
9. ISET
10. SENSE
11. FB
12. SS
13. SYNC
14. CLK
15. MODE
16. PGOOD
17. VCC
18. GND
19. VOUT
20. EN
21. PG
22. FLT
23. OV
24. UV
25. ISET
26. SENSE
27. FB
28. SS
29. SYNC
30. CLK
31. MODE
32. PGOOD
33. VCC
34. GND
35. VOUT
36. EN
37. PG
38. FLT

Functional Features

• Overvoltage and Undervoltage Protection: The LTC4245CUHF#PBF monitors the input voltage and provides protection against overvoltage and undervoltage conditions.
• Thermal Shutdown Protection: In case of excessive temperature, the LTC4245CUHF#PBF shuts down to prevent damage to the circuitry.
• High Efficiency: The IC is designed for high efficiency power management, minimizing power losses.
• Low Quiescent Current: The quiescent current of 20µA ensures minimal power consumption during standby or idle periods.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - Overvoltage and undervoltage protection safeguards connected devices. - High efficiency reduces power wastage. - Low quiescent current minimizes power consumption during idle periods.

Disadvantages: - Limited maximum power dissipation of 1.25W may restrict certain high-power applications. - Complex pin configuration may require careful attention during installation.

Working Principles

The LTC4245CUHF#PBF operates by monitoring the input voltage and regulating the output voltage accordingly. It incorporates overvoltage and undervoltage protection circuits to ensure the connected devices are not subjected to harmful voltage levels. Additionally, the IC features thermal shutdown protection to prevent overheating and potential damage.

Detailed Application Field Plans

The LTC4245CUHF#PBF finds applications in various fields, including but not limited to: 1. Industrial automation systems 2. Telecommunications equipment 3. Automotive electronics 4. Renewable energy systems 5. Medical devices

In industrial automation systems, the LTC4245CUHF#PBF can be used to regulate power supply voltages for control circuits and sensors. In telecommunications equipment, it ensures stable power delivery to sensitive components. Automotive electronics benefit from its overvoltage protection and low quiescent current. Renewable energy systems utilize the IC for efficient power management. Medical devices rely on the LTC4245CUHF#PBF for reliable and safe power supply.

Detailed and Complete Alternative Models

1. LTC4245IUHF#PBF: Similar to LTC4245CUHF#PBF, but in a 38-Lead TSSOP package.
2. LTC4245HUHF#PBF: Similar to LTC4245CUHF#PBF, but with extended temperature range (-40°C to 150°C).
3. LTC4245EUHF#PBF: Similar to LTC4245CUHF#PBF, but in a 38-Lead QFN package with exposed pad for improved thermal dissipation.

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable package or temperature range for specific applications.

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