LTC4355CS#PBF

Product Overview

Category: Integrated Circuits (ICs)

Use: The LTC4355CS#PBF is a power management IC designed for use in various electronic devices. It provides protection and control functions for power sources, ensuring safe and efficient operation.

Characteristics: - Input voltage range: 4V to 80V - Output voltage range: 2.5V to 80V - Maximum continuous current: 4A - Low quiescent current: 50µA - Reverse input voltage protection - Overvoltage and undervoltage protection - Adjustable soft-start time - Fault status indicator

Package: The LTC4355CS#PBF comes in a small surface-mount package, specifically the 16-Lead Narrow SSOP (Shrink Small Outline Package).

Essence: The essence of the LTC4355CS#PBF lies in its ability to protect electronic devices from potential damage caused by power source issues such as reverse voltage, overvoltage, and undervoltage conditions. It ensures reliable and safe operation of the connected devices.

Packaging/Quantity: The LTC4355CS#PBF is typically sold in reels containing 250 units per reel.

Specifications

• Input Voltage Range: 4V to 80V
• Output Voltage Range: 2.5V to 80V
• Continuous Current: 4A
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 85°C
• Package Type: 16-Lead Narrow SSOP

Pin Configuration

The LTC4355CS#PBF has the following pin configuration:

1. GATE
2. VIN
3. VOUT
4. FB
5. SS
6. FLT
7. GND
8. GND
9. GND
10. GND
11. GND
12. GND
13. GND
14. GND
15. GND
16. VCC

Functional Features

1. Reverse Voltage Protection: The LTC4355CS#PBF prevents damage to the connected devices by blocking reverse voltage from reaching them.
2. Overvoltage and Undervoltage Protection: It monitors the input voltage and disconnects the load when it exceeds or falls below the specified thresholds, protecting the devices from potential damage.
3. Adjustable Soft-Start Time: The soft-start feature allows for a gradual increase in output voltage, reducing stress on the connected devices during power-up.
4. Fault Status Indicator: The FLT pin provides a signal indicating the occurrence of a fault condition, allowing for easy monitoring and troubleshooting.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - Comprehensive protection features ensure safe operation. - Adjustable soft-start time reduces stress on connected devices. - Fault status indicator aids in troubleshooting.

Disadvantages: - Limited maximum continuous current may not be suitable for high-power applications. - Package size may limit its use in space-constrained designs.

Working Principles

The LTC4355CS#PBF operates by continuously monitoring the input voltage and comparing it to the specified thresholds. If the voltage exceeds or falls below these thresholds, the IC takes appropriate action to protect the connected devices. It utilizes internal circuitry to block reverse voltage and disconnect the load when necessary. The adjustable soft-start feature gradually ramps up the output voltage, preventing sudden voltage spikes that could harm the devices.

Detailed Application Field Plans

The LTC4355CS#PBF finds applications in various fields, including but not limited to: - Automotive electronics - Industrial control systems - Telecommunications equipment - Power distribution systems - Battery charging circuits

Detailed and Complete Alternative Models

1. LTC4355HS#PBF: Similar to the LTC4355CS#PBF, but in a different package (16-Lead Wide SSOP).
2. LTC4355IS#PBF: Similar to the LTC4355CS#PBF, but with a higher continuous current rating of 6A.
3. LTC4355MS#PBF: Similar to the LTC4355CS#PBF, but in a smaller package (10-Lead MSOP).

These alternative models offer similar functionality with slight variations in package type and specifications.

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