Texas Instruments TPS6594141BRWERQ1

Overview

TPS6594141BRWERQ1 from Texas Instruments is an automotive-grade power management IC (PMIC) integrating five buck regulators (four 3.5 A multi-phase configurable, one 2 A), four LDOs (three 500 mA bypass-capable, one 300 mA low-noise), functional safety features up to ASIL-D, and a 32-kHz RTC with crystal oscillator - designed for infotainment, digital cluster, and ADAS domain controllers.

For engineers reviewing the TPS6594141BRWERQ1 datasheet, TPS6594141BRWERQ1 pinout, TPS6594141BRWERQ1 application, or TPS6594141BRWERQ1 equivalent, key selection criteria include ASIL-D compliance documentation, multi-phase BUCK current sharing capability, dual I²C/SPI control interface allocation, and 56-pin VQFNP package thermal performance in automotive under-hood environments.

Technical Context

The TPS6594141BRWERQ1 implements a safety-critical power architecture with hardware integrity up to ASIL-D, including CRC-protected NVM for power sequencing, dual error signal monitors (ESMs), watchdog with Q&A mode, and independent voltage/current/thermal monitoring on all five BUCKs and four LDOs. It supports synchronized switching at 2.2 MHz or 4.4 MHz with spread-spectrum modulation.

Its digital control subsystem includes dedicated I²C for Q&A watchdog communication, SPI or dual-I²C interfaces, 32-kHz crystal oscillator with buffered CLK32KOUT, and programmable power-up/down sequences stored in non-volatile memory - enabling deterministic startup and fault recovery in safety-relevant systems.

Key Specifications

Pinout & Package

TPS6594141BRWERQ1 uses an 8-mm × 8-mm, 56-pin VQFNP (RWE) package with exposed thermal pad. Pin pitch is 0.5 mm; package complies with JEDEC MO-220 standards and supports automated optical inspection (AOI) and reflow soldering for automotive production.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive PMIC applications.

Compared with TPS6594141BRWERQ1, TPS6594211BRWERQ1 offers identical packaging and pinout but distinct factory NVM settings, whereas MAX20029ATG/V+T provides reduced channel count, lower safety grade, and no RTC - making it unsuitable for domain controller or digital cluster use cases requiring ASIL-D and timekeeping.

Availability

TPS6594141BRWERQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS domain controllers, and telematics systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.

Supply support for TPS6594141BRWERQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive electronics, with decades of experience in functional safety and automotive qualification.

The TPS6594-Q1 product line delivers ASIL-D–capable power management solutions for next-generation automotive domain controllers, integrating safety mechanisms, multi-rail sequencing, and real-time monitoring into a single package.

FAQ

What is the primary safety certification level supported by the TPS6594141BRWERQ1?

The TPS6594141BRWERQ1 is AEC-Q100 Grade 1 qualified and developed for functional safety applications up to ASIL-D per ISO 26262, with hardware integrity, systematic capability, and documentation support for system-level safety analysis. The TPS6594141BRWERQ1 includes CRC-protected NVM, dual ESM inputs, and Q&A watchdog mode to meet these requirements.

Does the TPS6594141BRWERQ1 support multi-phase operation across its BUCK regulators?

Yes, the TPS6594141BRWERQ1 supports flexible multi-phase configuration across four of its five BUCK regulators (BUCK1–BUCK4), enabling up to 14 A aggregate output current from a single rail. BUCK5 operates independently at 2 A. Phase interleaving is controlled via register configuration and supports synchronization to internal or external clocks.

How does the TPS6594141BRWERQ1 manage backup power for the RTC during main supply loss?

The TPS6594141BRWERQ1 integrates a dedicated VBACKUP input that supplies the 32-kHz crystal oscillator and RTC module from a coin cell or supercapacitor when the main 3–5.5 V supply fails. This ensures continuous timekeeping, alarm functionality, and wake-up capability without external circuitry - a key feature of the TPS6594141BRWERQ1.

Can the TPS6594141BRWERQ1 be configured using both SPI and I²C simultaneously?

Yes, the TPS6594141BRWERQ1 supports either SPI or dual I²C interfaces concurrently: I²C1 handles general configuration, while I²C2 is reserved exclusively for Q&A watchdog communication. This separation ensures safety-critical watchdog supervision remains isolated from main system traffic - a defined operational mode of the TPS6594141BRWERQ1.

What package type and thermal characteristics does the TPS6594141BRWERQ1 use?

The TPS6594141BRWERQ1 uses an 8-mm × 8-mm, 56-pin VQFNP (RWE) package with 0.5-mm pitch and exposed thermal pad. Its thermal resistance (θ_JA) is 27.5°C/W, enabling reliable operation at full load in automotive ambient temperatures up to +125°C - consistent with the TPS6594141BRWERQ1's AEC-Q100 Grade 1 rating.