LTC4353IMS#PBF

Product Overview

Category

LTC4353IMS#PBF belongs to the category of power management integrated circuits (PMICs).

Use

This product is primarily used for power supply protection and load sharing in various electronic systems.

Characteristics

• Provides reverse voltage and overcurrent protection.
• Enables seamless switchover between power sources.
• Offers low quiescent current and high efficiency.
• Supports a wide input voltage range.
• Incorporates a compact and robust package design.

Package

LTC4353IMS#PBF is available in a miniature 10-pin MSOP package, which ensures space-saving integration into electronic devices.

Essence

The essence of LTC4353IMS#PBF lies in its ability to safeguard power supplies and facilitate smooth transition between multiple power sources.

Packaging/Quantity

This product is typically sold in reels or tubes, with each reel/tube containing a specific quantity of LTC4353IMS#PBF units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.5V to 18V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 50µA (typical)
• Maximum Continuous Current: 4A
• Reverse Voltage Protection Threshold: -40mV to -100mV
• Overcurrent Detection Threshold: Adjustable

Detailed Pin Configuration

1. GATE1: Gate control pin for MOSFET 1
2. SOURCE1: Source pin for MOSFET 1
3. DRAIN1: Drain pin for MOSFET 1
4. GATE2: Gate control pin for MOSFET 2
5. SOURCE2: Source pin for MOSFET 2
6. DRAIN2: Drain pin for MOSFET 2
7. GND: Ground reference pin
8. VCC: Positive supply voltage input
9. OV/UV: Overvoltage/undervoltage detection pin
10. OCSET: Overcurrent detection threshold setting pin

Functional Features

1. Reverse Voltage Protection: LTC4353IMS#PBF safeguards the power supply by preventing reverse voltage from damaging the system.
2. Load Sharing: It enables seamless switchover between multiple power sources, ensuring uninterrupted operation.
3. Overcurrent Protection: The product detects and protects against excessive current flow, preventing damage to the system components.
4. Wide Input Voltage Range: LTC4353IMS#PBF supports a broad range of input voltages, enhancing its versatility in various applications.
5. Low Quiescent Current: With a low quiescent current, this PMIC minimizes power consumption and extends battery life.
6. High Efficiency: The device offers high efficiency, reducing power losses and optimizing energy utilization.

Advantages and Disadvantages

Advantages

• Provides robust protection against reverse voltage and overcurrent.
• Facilitates smooth load sharing between power sources.
• Compact package design allows for space-saving integration.
• Wide input voltage range enhances versatility.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited maximum continuous current capacity (4A).
• Requires careful consideration of the adjustable overcurrent detection threshold.

Working Principles

LTC4353IMS#PBF operates by utilizing two MOSFETs to control the power flow between input sources and the load. It continuously monitors the voltage and current levels, providing protection against reverse voltage and overcurrent conditions. The device intelligently switches between power sources based on their availability and quality, ensuring uninterrupted power supply to the load.

Detailed Application Field Plans

LTC4353IMS#PBF finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Uninterruptible power supplies (UPS) - Industrial automation systems - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

1. LTC4352IMS#PBF: Similar to LTC4353IMS#PBF with additional features for hot-swapping applications.
2. LTC4354IMS#PBF: Provides similar functionality as LTC4353IMS#PBF but with higher maximum continuous current capacity.
3. LTC4355IMS#PBF: Offers advanced protection features along with load sharing capabilities.

These alternative models can be considered based on specific application requirements and desired specifications.

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