TPS43351QDAPRQ1 - Texas Instruments

Manufacturer Part Number

TPS43351QDAPRQ1

Manufacturer

Texas Instruments

Introduction

The TPS43351QDAPRQ1 is a sophisticated DC DC switching controller designed for power management, particularly within automotive applications. It uses advanced technology to efficiently convert input voltage into a lower, regulated output voltage.

Product Features and Performance

Dual output step-down (buck) topology ensuring efficient power conversion.

Operates within a wide input voltage range of 4V to 40V, suitable for various power sources.

High frequency switching capability from 150kHz to 600kHz, optimizing efficiency and component size.

Maximum duty cycle of 98.75%, enabling close to full conversion of input voltage to output voltage under certain conditions.

Supports synchronous rectification for improved efficiency.

Clock synchronization feature to minimize interference and noise.

Comprehensive control features include Enable, Frequency Control, Power Good, Soft Start, and Tracking for enhanced system management and reliability.

Product Advantages

Automotive grade (AEC-Q100 qualification) ensures reliability and robustness in automotive environments.

The inclusion of a transistor driver allows for direct control of external power MOSFETs, facilitating customizable power solutions.

High efficiency and flexible design make it suitable for a wide range of automotive power systems.

Key Technical Parameters

Voltage Supply (Vcc/Vdd): 4V ~ 40V

Frequency Switching: 150kHz ~ 600kHz

Duty Cycle (Max): 98.75%

Number of Outputs: 2

Output Phases: 2

Operating Temperature: -40°C ~ 125°C (TJ)

Quality and Safety Features

Qualification according to AEC-Q100 standards, demonstrating suitability for the rigorous automotive field.

Built to operate reliably over a wide temperature range of -40°C to 125°C.

Compatibility

Surface Mount mounting type, compatible with modern automated PCB assembly processes.

Provided in a 38-PowerTSSOP package, ensuring compatibility with standard TSSOP footprints.

Application Areas

Automotive power systems, including infotainment, ECU power supplies, and advanced driver-assistance systems (ADAS).

Can be tailored for non-automotive applications requiring robust and efficient power conversion within the specified voltage and temperature ranges.

Product Lifecycle

The TPS43351QDAPRQ1 is currently active, indicating ongoing manufacturing and availability.

Given its automotive qualification, long-term availability is anticipated, although future upgrades or replacement models may be offered in due course.

Several Key Reasons to Choose This Product

High efficiency and adaptability in voltage conversion, suitable for a wide range of automotive applications.

Dual output and two-phase operation enable the handling of high power demands with lower heat dissipation.

Automotive-grade reliability and robustness, backed by AEC-Q100 qualification.

High frequency switching capabilities allow for a compact and efficient design, reducing external component size.

Comprehensive control and protection features ensure system stability and reliability under varying operating conditions.