TPS2115APWR

Product Overview

Category

The TPS2115APWR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power multiplexing applications in electronic devices. It allows for seamless switching between two power sources, ensuring uninterrupted power supply.

Characteristics

• Power multiplexer with low on-resistance
• Supports input voltages up to 18V
• Provides automatic switchover between two power sources
• Low quiescent current consumption
• Overcurrent protection feature
• Thermal shutdown protection

Package

The TPS2115APWR is available in a small outline package (SOP) with 8 pins. This package offers compactness and ease of integration into various electronic systems.

Essence

The essence of the TPS2115APWR lies in its ability to efficiently manage power sources, enabling smooth transitions between them without compromising the device's performance or reliability.

Packaging/Quantity

The TPS2115APWR is typically packaged in reels, containing 2500 units per reel. This packaging ensures convenient handling during manufacturing processes.

Specifications

• Input Voltage Range: 2.7V to 18V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 20µA (typical)
• On-Resistance: 50mΩ (typical)
• Overcurrent Protection Threshold: Adjustable
• Thermal Shutdown Temperature: 150°C (typical)

Detailed Pin Configuration

1. EN (Enable): Controls the operation of the power multiplexer.
2. IN1 (Input 1): Connects to the primary power source.
3. IN2 (Input 2): Connects to the secondary power source.
4. GND (Ground): Common ground reference for the IC.
5. FLT (Fault): Indicates overcurrent or thermal shutdown conditions.
6. VOUT (Output Voltage): Provides the output voltage to the load.
7. PG (Power Good): Indicates when the selected power source is within the acceptable voltage range.
8. VCC (Supply Voltage): Powers the internal circuitry of the IC.

Functional Features

• Automatic switchover between two power sources based on their availability and quality.
• Overcurrent protection prevents damage to the device and connected components.
• Thermal shutdown feature safeguards against excessive heat.
• Power Good indicator ensures the selected power source is within the desired voltage range.
• Low quiescent current consumption minimizes power wastage.

Advantages and Disadvantages

Advantages

• Seamless power source switching without interruptions.
• Efficient power management for electronic devices.
• Compact package size for easy integration.
• Adjustable overcurrent protection threshold.
• Thermal shutdown protection for enhanced safety.

Disadvantages

• Limited to two power sources only.
• Requires external control signal for operation.

Working Principles

The TPS2115APWR operates by continuously monitoring the input voltages from both power sources. It selects the power source with the highest quality and within the acceptable voltage range. The enable pin (EN) controls the operation of the power multiplexer, allowing the user to enable or disable the automatic switchover functionality.

In case of an overcurrent condition or excessive temperature, the fault pin (FLT) is activated, indicating a fault condition. This prompts the IC to switch off the faulty power source and activate the other one.

Detailed Application Field Plans

The TPS2115APWR finds applications in various electronic devices that require reliable power management. Some potential application fields include:

1. Portable electronic devices: Smartphones, tablets, and laptops can benefit from seamless power source switching to ensure uninterrupted operation.
2. Industrial automation: Power multiplexing is crucial in industrial control systems to maintain continuous operation and prevent downtime.
3. Automotive electronics: The TPS2115APWR can be used in automotive applications to manage power sources for various subsystems, such as infotainment systems and lighting.

Detailed and Complete Alternative Models

1. TPS2113APWR: Similar to the TPS2115APWR but with a lower input voltage range of 2.7V to 5.5V.
2. TPS2114APWR: Similar to the TPS2115APWR but with a higher input voltage range of 2.7V to 28V.
3. TPS2116APWR: Similar to the TPS2115APWR but with additional features like reverse current protection.

These alternative models offer similar functionality with slight variations in input voltage range and additional features to cater to specific application requirements.

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