TPS22918TDBVRQ1

Product Overview

Category

The TPS22918TDBVRQ1 belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is specifically designed for use in automotive applications, providing power distribution and control functions.

Characteristics

• Low quiescent current: The TPS22918TDBVRQ1 has a low quiescent current, making it suitable for battery-powered systems.
• Wide input voltage range: It can operate within a wide input voltage range, accommodating various automotive power supply conditions.
• Overcurrent protection: The device incorporates overcurrent protection, safeguarding the system from excessive current flow.
• Thermal shutdown protection: It features thermal shutdown protection, preventing damage due to excessive heat.
• ESD protection: The TPS22918TDBVRQ1 offers built-in electrostatic discharge (ESD) protection, enhancing its robustness.

Package

The TPS22918TDBVRQ1 is available in a small SOT-23 package, which is commonly used for surface-mount applications.

Essence

The essence of the TPS22918TDBVRQ1 lies in its ability to efficiently manage power distribution and control in automotive systems, ensuring reliable operation and protection against potential faults.

Packaging/Quantity

The TPS22918TDBVRQ1 is typically packaged in reels, with 3000 units per reel.

Specifications

• Input voltage range: 2.5V to 5.5V
• Output voltage range: 0V to VIN
• Quiescent current: 10µA (typical)
• Operating temperature range: -40°C to +125°C
• Overcurrent protection threshold: 1.8A (typical)

Detailed Pin Configuration

The TPS22918TDBVRQ1 features a 5-pin SOT-23 package with the following pin configuration:

1. EN (Enable): Controls the device's power state.
2. IN (Input): Connects to the input voltage source.
3. GND (Ground): Common ground reference.
4. OUT (Output): Provides the regulated output voltage.
5. PG (Power Good): Indicates the status of the output voltage.

Functional Features

• Power sequencing: The TPS22918TDBVRQ1 supports power sequencing, ensuring proper startup and shutdown sequences in automotive systems.
• Fault protection: It offers overcurrent protection, preventing damage to the system during abnormal operating conditions.
• Power good indication: The PG pin provides a signal indicating the status of the output voltage, enabling system monitoring and fault detection.

Advantages and Disadvantages

Advantages

• Low quiescent current enables energy-efficient operation.
• Wide input voltage range accommodates various automotive power supply conditions.
• Overcurrent and thermal shutdown protection enhance system reliability.
• Built-in ESD protection improves device robustness.

Disadvantages

• Limited output voltage range may not be suitable for certain applications requiring higher voltages.
• Small package size may pose challenges during assembly and soldering processes.

Working Principles

The TPS22918TDBVRQ1 operates as a power distribution switch, controlling the flow of current from the input to the output based on the enable signal. When enabled, it allows the input voltage to pass through to the output, providing a regulated voltage to the load. In case of overcurrent or excessive temperature, the device automatically shuts down to protect the system.

Detailed Application Field Plans

The TPS22918TDBVRQ1 finds extensive application in automotive systems, including but not limited to: - Infotainment systems - Lighting control modules - Body control modules - Advanced driver-assistance systems (ADAS) - Powertrain control modules

Detailed and Complete Alternative Models

1. TPS22919TDBVRQ1: Similar to the TPS22918TDBVRQ1, but with a higher overcurrent protection threshold.
2. TPS22917TDBVRQ1: Similar to the TPS22918TDBVRQ1, but with a lower quiescent current.
3. TPS22916TDBVRQ1: Similar to the TPS22918TDBVRQ1, but with a different pin configuration.

These alternative models provide flexibility in selecting the most suitable PMIC based on specific application requirements.

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