Texas Instruments TPS65930400RWERQ1

Overview

TPS65930400RWERQ1 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), real-time clock, 32-kHz crystal oscillator, watchdog with Q&A mode, and dual I²C/SPI interfaces. It delivers functional safety up to ASIL-D system capability and ASIL-B hardware integrity for ADAS and digital cluster applications.

For engineers reviewing the TPS65930400RWERQ1 datasheet, TPS65930400RWERQ1 pinout, TPS65930400RWERQ1 application, or TPS65930400RWERQ1 equivalent, key selection criteria include input voltage monitoring, per-rail overvoltage/overcurrent detection, CRC-protected NVM configuration, thermal warning/shutdown, and configurable power sequencing across safety-critical automotive domains.

Technical Context

The TPS65930400RWERQ1 implements a dual-control interface architecture: primary I²C/SPI for configuration and status readback, plus a dedicated second I²C channel for Q&A watchdog communication. Its power architecture supports flexible multi-phase operation across BUCK1–BUCK4 (up to 14 A aggregate), with internal soft-start, spread-spectrum modulation, and external clock synchronization at 1–4 MHz.

Safety mechanisms include two error signal monitors (ESMs) with level/PWM mode selection, input supply voltage monitor, independent under/overvoltage and overcurrent monitors on all output rails, bit-integrity CRC on configuration registers and NVM, and thermal pre-warning with shutdown-enabling systematic compliance with ISO 26262 up to ASIL-D.

Key Specifications

Pinout & Package

TPS65930400RWERQ1 uses an 8 mm × 8 mm, 56-pin VQFNP package with 0.5-mm pitch and integrated thermal pad (PGND). The package meets AEC-Q100 Grade 1 requirements and supports high-reliability automotive PCB assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power management IC applications.

Compared with TPS65930400RWERQ1, TPS65941100RWERQ1 offers SPMI but sacrifices RTC and clock output flexibility, while MAX20029ATG/V+T provides wider VIN and smaller footprint at the expense of ASIL-D readiness and configurability - making TPS65930400RWERQ1 optimal for high-integrity ADAS and cluster systems requiring integrated timing and robust sequencing.

Availability

TPS65930400RWERQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS domain controllers, and telematics control units requiring stable component supply across long production lifecycles.

Supply support for TPS65930400RWERQ1 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 automotive qualification expertise and AEC-Q100-compliant manufacturing.

The TPS6593-Q1 product line was developed specifically for safety-critical automotive applications including ADAS, digital clusters, and infotainment systems - integrating functional safety features, multi-phase power delivery, and configurable sequencing into a single PMIC platform.

FAQ

What is the input voltage range supported by the TPS65930400RWERQ1?

The TPS65930400RWERQ1 supports an input voltage range of 3 V to 5.5 V, enabling direct connection to regulated automotive 3.3 V or 5 V rails. This range is specified under AEC-Q100 Grade 1 conditions (–40°C to +125°C ambient), and includes built-in input voltage monitoring with programmable thresholds to detect undervoltage and overvoltage faults that trigger safety responses in the TPS65930400RWERQ1.

Does the TPS65930400RWERQ1 include real-time clock functionality?

Yes, the TPS65930400RWERQ1 integrates a full-featured real-time clock (RTC) with calendar, alarm, and periodic wake-up capability. It operates from the internal 32-kHz crystal oscillator and remains functional during main supply loss via the VBACKUP input. The RTC is powered by dedicated internal LDOVRTC and retains time/date information even in deep sleep, making it essential for telematics and infotainment applications requiring accurate timekeeping in the TPS65930400RWERQ1.

How many buck regulators does the TPS65930400RWERQ1 integrate, and what are their current capabilities?

The TPS65930400RWERQ1 integrates five buck regulators: BUCK1–BUCK4 each deliver up to 3.5 A and support multi-phase configuration (e.g., 2-phase BUCK1+BUCK2 yields 7 A), while BUCK5 provides 2 A. All include short-circuit protection, internal soft-start, and 2.2/4.4 MHz switching with external clock synchronization. These capabilities allow the TPS65930400RWERQ1 to power multiple SoC domains with precise sequencing and fault containment.

What safety certifications and functional safety features does the TPS65930400RWERQ1 provide?

The TPS65930400RWERQ1 is AEC-Q100 Grade 1 qualified and designed for ISO 26262 functional safety applications, achieving ASIL-D system capability and ASIL-B hardware integrity. Key features include per-rail voltage/current monitoring, thermal pre-warning and shutdown, CRC-protected NVM and registers, two error signal monitors (ESMs), Q&A watchdog, and input supply monitoring - all documented to support safety case development for the TPS65930400RWERQ1.

Can the TPS65930400RWERQ1 be configured without external programming during startup?

Yes, the TPS65930400RWERQ1 includes pre-programmed non-volatile memory (NVM) containing default power-up/down sequences, output voltages, and GPIO configurations. This allows fully autonomous startup without host processor intervention. Configuration can later be modified via SPI or I²C, but the NVM ensures safe, repeatable behavior - a critical requirement for automotive systems using the TPS65930400RWERQ1 in mission-critical applications.