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Texas Instruments O917A131TRGZRQ1
- Part No.:
- O917A131TRGZRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- -
- Datasheet:
-
O917A131TRGZRQ1.pdf
- Description:
- PMU FOR PROCESSOR
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Product details
Overview
O917A131TRGZRQ1 from Texas Instruments is an automotive-grade power management unit (PMU) integrating five step-down SMPS regulators (including dual-phase 7-A capability), five LDOs, a 12-bit sigma-delta GPADC, thermal monitoring, and configurable power sequencing. It operates from 3.135 V to 5.25 V input, delivers up to 3.5 A per SMPS channel, supports dynamic voltage scaling (DVS), and is qualified for –40°C to +105°C ambient operation in automotive digital cluster and ADAS systems.
For engineers reviewing the O917A131TRGZRQ1 datasheet, O917A131TRGZRQ1 pinout, O917A131TRGZRQ1 application, or O917A131TRGZRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 2 qualification, OTP-configurable power-up/down sequences, dual-phase SMPS synchronization via GPIO_3, differential remote sensing on SMPS1/SMPS2, and integrated 32-kHz RC oscillator with PLL clock generation.
Technical Context
The O917A131TRGZRQ1 implements a hierarchical power architecture with one-time programmable (OTP) memory controlling startup sequences, voltage defaults, and GPIO configurations-enabling zero-software boot. Its five SMPS regulators use internal 2.2-MHz switching with external clock synchronization capability (1.7–2.7 MHz) via SYNCDCDC input, while two 3.5-A SMPS channels support dual-phase interleaving with differential feedback for improved ripple suppression and current sharing.
Control is split across two I²C interfaces (one dedicated to DVS) and one SPI interface, enabling real-time voltage scaling, register configuration, and fault reporting. The integrated 12-bit GPADC monitors eight channels-including two external inputs, supply voltages, output currents, and die temperature-feeding health data to the host processor via interrupt-driven event handling and automatic threshold detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.135 V to 5.25 V system supply-supports direct connection to automotive battery rail with transient tolerance. |
| SMPS Output Current | Two 3.5-A channels (configurable as 7-A dual-phase); three others rated at 3-A, 2-A, and 1.5-A-powers multi-core processors, DDR memory, and I/O rails. |
| LDO Count & Capability | Five LDOs: two 300-mA (bypass mode), one 100-mA low-noise (≤50 mA), two 200-mA-provides clean bias for analog, RTC, and noise-sensitive domains. |
| ADC Resolution & Channels | 12-bit sigma-delta GPADC with 8 total channels (2 external)-enables real-time monitoring of external sensors, supply margins, and thermal headroom. |
| Operating Temperature | AEC-Q100 Grade 2: –40°C to +105°C ambient-validated for under-hood and instrument cluster environments. |
| Power Sequencing | OTP-programmed power-up/down and SLEEP↔ACTIVE transitions-ensures deterministic boot without host firmware intervention. |
| Control Interfaces | SPI + two I²C buses (one DVS-dedicated)-allows concurrent configuration, dynamic voltage scaling, and interrupt-driven fault response. |
Pinout & Package
Package: 7-mm × 7-mm 48-pin VQFN (RGZ) with 0.5-mm pitch and exposed thermal pad (PGND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SMPS1_IN / SMPS2_IN | Primary input for dual-phase SMPS | Accepts common 3.135–5.25 V system rail; enables shared input filtering and layout simplification. |
| SMPS1_FDBK / SMPS2_FDBK | Differential feedback inputs | Supports remote sensing across load to compensate for PCB trace IR drop and maintain ±1% output accuracy. |
| GPIO_3 | Multi-function terminal | Configurable as SYNCDCDC input to synchronize switching frequency across multiple PMUs-critical for EMI reduction in multi-rail systems. |
| INT | Interrupt output | Open-drain signal asserting on thermal warning, short-circuit, VINLOW, or ADC threshold breach-triggers immediate host processor response. |
| POWERGOOD (GPIO_6) | System status indicator | Open-drain output confirming all regulated outputs are within specification-used for downstream enable sequencing and safety interlocks. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase SMPS configuration | Combines SMPS1 and SMPS2 into single 7-A output with interleaved timing-reduces input/output capacitor size by ~50% vs. discrete solutions. |
| OTP-based power sequencing | Factory-programmed startup order, timing delays, and voltage ramps-eliminates need for external sequencer IC or boot-time firmware initialization. |
| Dynamic voltage scaling (DVS) | Hardware- and software-controlled voltage adjustment on 3.5-A and 3-A SMPS-enables processor DVFS for optimal power-performance trade-off. |
| Integrated thermal shutdown | Die temperature monitoring with programmable warning threshold and hard shutdown at 150°C-prevents thermal runaway during sustained overload or poor heatsinking. |
| Short-circuit protection | Per-SMPS and per-LDO current limiting with auto-retry and interrupt reporting-avoids latch-up and enables safe recovery after fault clearance. |
Applications
| Automotive Digital Cluster | Automotive ADAS Camera Module |
|---|---|
Use Scenario: Powering high-resolution TFT display, graphics processor, and touch controller in instrument panel with strict EMC and thermal constraints. IC Role / Device Role / Timing Role: Central PMU managing core logic voltage (SMPS1/2), memory rail (SMPS3), I/O domain (SMPS4), and low-noise analog supply (LDOVANA). Use Value: Dual-phase 7-A output meets GPU burst current demands; OTP sequencing ensures deterministic boot before display initialization; SYNCDCDC input aligns switching with infotainment SoC for system-level EMI compliance. | Use Scenario: Supplying image sensor, ISP, and radar preprocessor in front-facing camera module requiring low noise, fast transient response, and functional safety awareness. IC Role / Device Role / Timing Role: Provides isolated 1.2-V core, 1.8-V I/O, 3.3-V sensor bias, and 1.1-V low-noise analog rail-with independent short-circuit protection and thermal monitoring per domain. Use Value: 12-bit GPADC continuously monitors sensor supply margins and die temperature; POWERGOOD and INT signals feed ASIL-B diagnostics; AEC-Q100 Grade 2 ensures reliability in engine bay proximity. |
| Automotive Navigation System | In-Vehicle Infotainment (IVI) Head Unit |
Use Scenario: Supporting GPS/GNSS receiver, cellular modem, and audio DSP in compact navigation unit with limited board space and thermal budget. IC Role / Device Role / Timing Role: Delivers 1.0-V core, 1.2-V memory, 1.8-V interface, 3.3-V peripheral, and 1.1-V RTC/backup rails-all from single 48-pin VQFN package. Use Value: Five integrated SMPS eliminate six external DC/DC converters; LDOVRTC_OUT provides always-on 1.1-V backup for real-time clock; small 7×7 mm footprint reduces PCB area by >40% vs. discrete PMU solution. | Use Scenario: Powering quad-core application processor, HDMI transmitter, USB hub, and audio codec in premium IVI head unit with multi-rail coordination and fail-safe behavior. IC Role / Device Role / Timing Role: Orchestrates power-up of SoC, DDR, display, and connectivity subsystems using OTP-defined sequence with precise timing control and voltage ramp rates. Use Value: Configurable SLEEP↔ACTIVE transition minimizes idle power (90 μA with two SMPS active); watchdog timer and CRC-protected OTP prevent undefined states; I²C DVS interface enables runtime voltage optimization per workload. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65916Q1RSLRQ1 | Four SMPS (max 3-A), four LDOs, no GPADC, no dual-phase mode-lower integration and feature set. | Targeted at cost-sensitive entry-level clusters without advanced thermal or sensor monitoring needs. | Select when system requires only basic multi-rail PMU functionality without ADC, dual-phase, or extensive sequencing. |
| MAX20029ATGB/V+T | Three SMPS (max 4-A), three LDOs, no OTP sequencing, no GPADC, SPI-only interface-different control architecture and lower configurability. | Designed for simpler ADAS ECUs where host MCU handles sequencing and monitoring. | Choose when design prioritizes SPI simplicity and avoids I²C resource contention, accepting reduced autonomous operation. |
Compared with TPS65916Q1RSLRQ1 and MAX20029ATGB/V+T, the O917A131TRGZRQ1 offers superior integration (5 SMPS + 5 LDO + GPADC + OTP sequencer), higher current capability in dual-phase mode, and automotive-specific diagnostics-making it optimal for complex, safety-aware systems where deterministic power control and health monitoring are critical.
Availability
O917A131TRGZRQ1 is available at Aetrix Electronics and suitable for automotive digital cluster, ADAS camera modules, and navigation systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for O917A131TRGZRQ1 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 power management technologies with decades of automotive qualification experience.
The TPS65917 product line was designed specifically for automotive infotainment and ADAS processors-integrating high-current SMPS, precision LDOs, intelligent sequencing, and system health monitoring into a single AEC-Q100-compliant package.
FAQ
What automotive qualification level does the O917A131TRGZRQ1 meet?
The O917A131TRGZRQ1 is AEC-Q100 qualified at Grade 2, supporting ambient operating temperatures from –40°C to +105°C. It includes HBM Class 2 and CDM Class C4B ESD ratings, and its OTP-based power sequencing and thermal shutdown features are validated for automotive safety-critical use cases. This qualification applies directly to the O917A131TRGZRQ1 device as shipped.
Does the O917A131TRGZRQ1 support dynamic voltage scaling (DVS) for processor cores?
Yes, the O917A131TRGZRQ1 supports hardware- and software-controlled DVS on its two highest-current SMPS regulators (SMPS1 and SMPS2, rated at 3.5-A each) and the 3-A SMPS3. Voltage steps are programmable in 10-mV or 20-mV increments across 0.7–3.3 V range, enabling precise alignment with processor DVFS requirements. This DVS capability is intrinsic to the O917A131TRGZRQ1's register map and control interfaces.
Can the O917A131TRGZRQ1 synchronize its SMPS switching frequency to an external clock?
Yes, the O917A131TRGZRQ1 supports external clock synchronization via the GPIO_3 pin configured as SYNCDCDC input. It accepts external clocks between 1.7 MHz and 2.7 MHz, allowing multiple O917A131TRGZRQ1 devices-or other compatible TI PMUs-to operate in phase-aligned mode, significantly reducing system-level conducted and radiated EMI.
How many analog inputs does the integrated GPADC in the O917A131TRGZRQ1 support?
The O917A131TRGZRQ1 integrates a 12-bit sigma-delta general-purpose ADC (GPADC) with eight total input channels: six internal (supply voltages, output currents, die temperature) and two dedicated external analog inputs (ADCIN1 and ADCIN2). These external channels accept 0–1.8 V signals and are used for monitoring external sensors, battery voltage, or thermal diodes-functionality confirmed in the O917A131TRGZRQ1's electrical characteristics tables.
What package type and dimensions does the O917A131TRGZRQ1 use?
The O917A131TRGZRQ1 uses a 48-pin VQFN package (RGZ suffix) with 7.00 mm × 7.00 mm body size and 0.5-mm pitch. It includes an exposed thermal pad (PGND) on the bottom for enhanced heat dissipation. This package is identical across all TPS65917-Q1 variants and is specified in the official TI orderable addendum for O917A131TRGZRQ1.
O917A131TRGZRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- -
- Supplier Device Package:
- -
O917A131TRGZRQ1 FAQ
1.How can I place an order for O917A131TRGZRQ1 through Aetrix?
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For technical support, including O917A131TRGZRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your O917A131TRGZRQ1 requirements.
6.How does Aetrix verify that O917A131TRGZRQ1 is sourced from the original manufacturer or authorized distributors?
All O917A131TRGZRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that O917A131TRGZRQ1 meets industry standards.
7.What is the process for return or replacement of O917A131TRGZRQ1?
All O917A131TRGZRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with O917A131TRGZRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The O917A131TRGZRQ1 part is unused and in its original packaging.
Return procedure for O917A131TRGZRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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