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Texas Instruments O917A132TRGZRQ1
- Part No.:
- O917A132TRGZRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- -
- Datasheet:
-
O917A132TRGZRQ1.pdf
- Description:
- TPS65917-Q1 - AUTOMOTIVE 3.15V T
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Product details
Overview
O917A132TRGZRQ1 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, delivers 20 µA off-mode current, and supports dynamic voltage scaling for processor core, memory, and I/O rails in safety-critical vehicle systems.
For engineers reviewing the O917A132TRGZRQ1 datasheet, O917A132TRGZRQ1 pinout, O917A132TRGZRQ1 application, or O917A132TRGZRQ1 equivalent, key selection criteria include AEC-Q100 Grade 2 qualification (–40°C to +105°C), OTP-configurable startup sequences, dual-phase SMPS synchronization via GPIO_3, differential remote sensing on SMPS1/2, and integrated short-circuit/thermal protection with POWERGOOD signaling.
Technical Context
The O917A132TRGZRQ1 implements a hierarchical power architecture: two 3.5-A SMPS regulators support dual-phase 7-A output with differential voltage and ground sensing, while three additional SMPS deliver 3-A, 2-A, and 1.5-A. All five SMPS feature hardware/software Eco-mode, internal soft-start, and external clock synchronization (1.7–2.7 MHz).
Power sequencing is controlled by factory-programmed OTP memory enabling zero-software boot, with SPI and dual I2C interfaces (one dedicated to DVS) for runtime reconfiguration. The 12-bit GPADC monitors two external voltages plus internal supply, current, and die temperature, feeding health data to the host processor via interrupt-driven event handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | AEC-Q100 Grade 2: –40°C to +105°C ambient - enables use in engine bay-adjacent ADAS modules without derating. |
| SMPS Output Current | Two 3.5-A SMPS configurable as dual-phase 7-A rail - powers high-performance automotive processors with reduced ripple and improved thermal distribution. |
| LDO Count & Capability | Five LDOs: two 300-mA (bypass mode), one 100-mA low-noise (≤50 mA), two 200-mA - supplies noise-sensitive analog/RTC domains independently. |
| ADC Resolution & Inputs | 12-bit sigma-delta GPADC with 8 channels (2 external) - enables real-time system health monitoring including external battery voltage and temperature sensing. |
| Control Interfaces | SPI + two I2C (one DVS-dedicated) - allows simultaneous configuration of power rails and dynamic voltage scaling without bus contention. |
| Off-Mode Current | 20 µA - extends battery life during vehicle sleep modes while retaining fast wake-up capability. |
| Package | 7-mm × 7-mm 48-pin VQFN (RGZ) with 0.5-mm pitch - supports high-density automotive PCB layouts with thermal pad for efficient heat dissipation. |
Pinout & Package
Package: 7-mm × 7-mm VQFN (RGZ) with exposed thermal pad (PGND). Pin count: 48. Pitch: 0.5 mm. RoHS-compliant, automotive-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SMPS1_IN / SMPS2_IN | Primary input for dual-phase SMPS | Accepts 3.135–5.25 V system supply; shared input enables coordinated regulation of high-current processor core rail. |
| SMPS1_FDBK / SMPS2_FDBK | Differential feedback inputs | Enable remote sensing of output voltage and ground path - critical for maintaining ±1% accuracy under high load transients. |
| GPIO_3 | Multi-function terminal | Configurable as SYNCDCDC input to synchronize SMPS switching across multiple PMUs - reduces system-level EMI peaks. |
| POWERGOOD (GPIO_6) | Open-drain status output | Asserts low when all regulated outputs meet tolerance - used by host processor to gate clock enable and initiate firmware execution. |
| INT | Interrupt request output | Active-low signal notifying host of thermal warning, short-circuit detection, or ADC threshold breach - enables responsive fault mitigation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase SMPS configuration | Combines SMPS1/2 into single 7-A output with interleaved switching - cuts output ripple by 50% and eases capacitor sizing. |
| OTP-based power sequencing | Factory-programmed startup/shutdown order eliminates boot firmware dependency - ensures deterministic power-up in cold-start conditions. |
| Dynamic Voltage Scaling (DVS) | Hardware- and software-controlled voltage adjustment on 3.5-A and 3-A SMPS - matches processor performance states to reduce active power by up to 40%. |
| Integrated thermal shutdown | Die temperature monitoring with programmable warning threshold and hard shutdown at 150°C - prevents permanent damage during sustained overload. |
| Short-circuit protected LDOs | All five LDOs include foldback current limiting and auto-recovery - maintains system stability during transient faults on peripheral rails. |
Applications
| Automotive Digital Cluster | ADAS Camera Module |
|---|---|
Use Scenario: High-resolution TFT display with GPU, video decoder, and touch controller requiring tightly regulated, low-noise power rails. IC Role / Device Role / Timing Role: Central PMU managing core SoC voltage (SMPS1/2 dual-phase), memory I/O (SMPS3), display bias (LDOVANA), and RTC backup (LDOVRTC). Use Value: OTP-configured sequence ensures display powers up before GPU initialization; 100-mA low-noise LDO supplies analog front-end without introducing pixel noise. | Use Scenario: Front-facing stereo camera processing raw image data with real-time object detection algorithms. IC Role / Device Role / Timing Role: Power controller delivering dynamic core voltage (via DVS), sensor bias (SMPS4), ISP I/O (SMPS5), and ADC reference (LDO3). Use Value: Dual-phase SMPS sustains 6-A peak current during image burst capture; GPADC monitors lens motor voltage and board temperature for thermal throttling. |
| Automotive Navigation System | In-Vehicle Infotainment (IVI) Head Unit |
Use Scenario: GPS/GLONASS receiver, cellular modem, and audio DSP co-located on single PCB with strict EMC requirements. IC Role / Device Role / Timing Role: Synchronized PMU coordinating switching frequencies across SMPS regulators to avoid beat frequencies in RF bands. Use Value: GPIO_3 accepts external 2.2-MHz clock - aligns all SMPS edges to minimize conducted emissions near GNSS L1 band (1.575 GHz). | Use Scenario: Multi-core application processor running Android Automotive OS with HDMI, USB, and CAN interfaces. IC Role / Device Role / Timing Role: System power hub providing core (SMPS1/2), DDR (SMPS3), PCIe (SMPS4), and audio codec (LDO5) rails with independent sequencing. Use Value: Five independent SMPS allow staggered power-up - prevents inrush current exceeding 10-A fuse rating during cold boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6591220RGERQ1 | Four SMPS (max 3-A each), four LDOs, no dual-phase capability, 10-bit ADC | Lacks 7-A dual-phase output and differential sensing - unsuitable for high-performance processor cores requiring >5-A continuous current | Select when system power demand is ≤4-A per rail and cost sensitivity outweighs peak performance needs. |
| MAX20029ATGB/V+T | Three SMPS (3.5-A, 2-A, 1.5-A), three LDOs, no OTP sequencing, SPI-only interface | No factory-programmed power-up sequence - requires host firmware initialization; missing GPADC and thermal monitoring features | Choose for simpler systems where software control is preferred and health monitoring is handled externally. |
Compared with TPS65917-Q1, TPS6591220RGERQ1 offers lower integration and reduced current capability but lower BOM cost, while MAX20029ATGB/V+T trades OTP autonomy and analog monitoring for smaller footprint and SPI simplicity - neither provides the dual-phase 7-A + GPADC + thermal shutdown combination required for next-gen ADAS processors.
Availability
O917A132TRGZRQ1 is available at Aetrix Electronics and suitable for automotive digital cluster, ADAS camera module, and navigation system designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for O917A132TRGZRQ1 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 and embedded processing technologies, with deep expertise in automotive electronics and functional safety design.
The TPS65917-Q1 belongs to TI's automotive PMIC portfolio, engineered specifically for ASIL-B compliant infotainment and driver-assistance systems requiring AEC-Q100 qualification, robust fault handling, and zero-software boot capability.
FAQ
What automotive safety standards does the O917A132TRGZRQ1 comply with?
The O917A132TRGZRQ1 is AEC-Q100 qualified for Device Temperature Grade 2 (–40°C to +105°C ambient), with HBM Class 2 and CDM Class C4B ESD ratings. It incorporates OTP bit-integrity error detection, thermal shutdown, short-circuit protection on all SMPS and LDOs, and watchdog timer functionality - supporting ASIL-B system-level compliance when integrated per ISO 26262 guidelines. O917A132TRGZRQ1 does not carry ASIL certification itself but provides foundational safety mechanisms required for such implementations.
Can the O917A132TRGZRQ1 support dynamic voltage scaling for multi-core processors?
Yes, the O917A132TRGZRQ1 supports hardware- and software-controlled DVS on its 3.5-A and 3-A SMPS regulators via dedicated I2C and SPI interfaces. Voltage steps are programmable in 10-mV or 20-mV increments across 0.7–3.3 V range, enabling precise tracking of processor P-states. The DVS timing meets typical ARM Cortex-A series requirements, with slew rates configurable to avoid overshoot during transitions. O917A132TRGZRQ1 integrates this capability directly - no external DAC or control logic is needed.
How does the O917A132TRGZRQ1 handle power sequencing without host processor intervention?
The O917A132TRGZRQ1 uses factory-programmed one-time programmable (OTP) memory to define power-up, power-down, and SLEEP↔ACTIVE transition sequences - enabling full boot without host firmware. Default configurations include output voltages, GPIO states, and timing delays (e.g., 10-ms inter-rail delay). These can be modified via SPI/I2C post-deployment. O917A132TRGZRQ1 also includes OTP bit-integrity checking that halts power-up if corruption is detected, preventing undefined system states.
What is the role of the GPADC in the O917A132TRGZRQ1, and how many external signals can it monitor?
The O917A132TRGZRQ1 integrates a 12-bit sigma-delta general-purpose ADC (GPADC) with eight input channels: two are dedicated external inputs (ADCIN1, ADCIN2) for monitoring battery voltage, thermistors, or other analog sensors; the remaining six measure internal parameters including supply voltages, SMPS output currents, and die temperature. Conversion results trigger interrupts via the INT pin, enabling host-driven health checks. O917A132TRGZRQ1 supports automatic threshold comparisons and periodic conversions without CPU polling.
Does the O917A132TRGZRQ1 support synchronization of multiple PMUs to reduce EMI?
Yes, the O917A132TRGZRQ1 supports external clock synchronization via the GPIO_3 pin configured as SYNCDCDC input. It accepts an external clock between 1.7 MHz and 2.7 MHz to align switching edges across multiple O917A132TRGZRQ1 devices - suppressing beat frequencies and lowering peak EMI in multi-PMU systems like zonal architectures. Internal default operation uses a 2.2-MHz oscillator, but synchronization is mandatory for EMI-critical applications such as radar or GNSS receivers.
O917A132TRGZRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
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- Bulk
- Product Status:
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O917A132TRGZRQ1 FAQ
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All O917A132TRGZRQ1 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 O917A132TRGZRQ1 meets industry standards.
7.What is the process for return or replacement of O917A132TRGZRQ1?
All O917A132TRGZRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with O917A132TRGZRQ1, 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 O917A132TRGZRQ1 part is unused and in its original packaging.
Return procedure for O917A132TRGZRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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