Texas Instruments TPS92662QPHPRQ1

Overview

TPS92662QPHPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive LED matrix manager IC for adaptive headlight systems, featuring 12 integrated bypass switches (4 sub-strings × 3), 4.5 V to 60 V input range, programmable 10-bit PWM dimming with device-to-device synchronization, and multi-drop UART interface compatible with CAN physical layer.

For engineers reviewing the TPS92662QPHPRQ1 datasheet, TPS92662QPHPRQ1 pinout, TPS92662QPHPRQ1 application, or TPS92662QPHPRQ1 equivalent, key selection considerations include LED open/short fault reporting, on-chip 8-bit ADC with dual MUX inputs for temperature/binning compensation, crystal oscillator driver, and external EEPROM I²C interface for calibration storage.

Technical Context

The TPS92662QPHPRQ1 implements a dedicated LED pixel control architecture using four independent sub-string groups of three series-connected high-side bypass switches per group, each rated for ≤20 V across switch and ≤62 V switch-to-ground. Internal charge pump supplies gate drive voltage to minimize R_DS(on) conduction loss.

It employs a multi-drop UART interface with up to 31 addressable nodes, supports CAN transceivers for robust harness wiring, and integrates synchronized PWM generation with programmable slew rate to suppress EMI during LED switching transitions.

Key Specifications

Pinout & Package

TPS92662QPHPRQ1 uses HTQFP-48 (PHP) package with 7.0 mm × 7.0 mm body size, 0.5 mm pitch, and exposed thermal pad (PowerPAD™). Pin 1 orientation follows Q2 quadrant assignment per tape-and-reel standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LED matrix management applications.

Compared with TPS92662QPHPRQ1, TPS92661QPHPRQ1 omits crystal timing and EEPROM capability-reducing BOM count but limiting autonomous synchronization; MAX20052ATP/V+T offers fewer channels and no diagnostic ADC, making it suitable for non-adaptive or lower-resolution lighting systems.

Availability

TPS92662QPHPRQ1 is available at Aetrix Electronics and suitable for automotive headlight systems, adaptive driving beam (ADB) modules, and glare-free high beam implementations requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for TPS92662QPHPRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive-grade power management and LED control solutions.

The TPS92662QPHPRQ1 belongs to TI's automotive LED matrix manager product line, designed specifically to enable dynamic, safety-certified adaptive front-lighting systems (AFS) with pixel-level control and functional safety readiness.

FAQ

What is the operating temperature range for the TPS92662QPHPRQ1?

The TPS92662QPHPRQ1 is qualified to AEC-Q100 Grade 1 specifications, supporting continuous operation from –40°C to +125°C ambient temperature. This rating covers under-hood automotive environments where thermal stress and transient conditions are critical. The device's internal thermal protection and charge pump design maintain stable performance across this full range without derating.

Does the TPS92662QPHPRQ1 support CAN bus communication directly?

The TPS92662QPHPRQ1 does not integrate a CAN controller or transceiver, but its multi-drop UART interface is explicitly designed to be compatible with external CAN physical layer transceivers. This allows robust, noise-immune communication over automotive cable harnesses with minimal wire count. System designers connect TX/RX pins to a CAN transceiver (e.g., TCAN1042-Q1) to achieve CAN FD-capable signaling.

How many LED strings can the TPS92662QPHPRQ1 control simultaneously?

The TPS92662QPHPRQ1 controls up to 12 individual LED bypass paths, grouped into four sub-strings of three series-connected switches each. Each sub-string can manage one LED string or be paralleled to handle higher current loads. It does not regulate current itself - external constant-current sources (e.g., buck regulators) feed the LED strings, while TPS92662QPHPRQ1 handles dynamic pixel-level on/off and PWM dimming.

What fault detection capabilities does the TPS92662QPHPRQ1 provide?

The TPS92662QPHPRQ1 provides real-time LED open-circuit and short-circuit detection per channel, with programmable thresholds for both conditions. Fault status is reported through the UART interface as discrete error flags, enabling immediate system-level response such as beam reconfiguration or warning indication. No external sensing components are required - detection is implemented within the IC's analog front-end.

Is external memory required for the TPS92662QPHPRQ1 to function?

The TPS92662QPHPRQ1 operates without external memory for basic functionality, but its I²C interface is designed to connect to an external EEPROM (e.g., AT24C02) for storing calibration data, lighting profiles, and system-specific parameters. This enables field-updatable behavior and eliminates MCU dependency for persistent settings - however, default operation uses internal registers and requires no EEPROM for initial startup or static configurations.