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Texas Instruments UCD9090QRGZRQ1
- Part No.:
- UCD9090QRGZRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
UCD9090QRGZRQ1.pdf
- Description:
- IC SUPERVISOR 10 CHANNEL 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,570
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Product details
Overview
UCD9090QRGZRQ1 from Texas Instruments is an AEC-Q100 Grade 1 (–40°C to 125°C) automotive-qualified 10-rail PMBus/I²C power supply sequencer and monitor with integrated 12-bit ADC, closed-loop margining, programmable watchdog, and 23 GPIOs - used in ADAS domain controllers, infotainment ECUs, and vehicle networking modules for precise rail sequencing and fault logging.
For engineers reviewing the UCD9090QRGZRQ1 datasheet, UCD9090QRGZRQ1 pinout, UCD9090QRGZRQ1 application, or UCD9090QRGZRQ1 equivalent, key selection considerations include rail count (10), analog monitoring resolution (12-bit, 0.5% internal VREF), PWM margining frequency range (15.26 kHz–125 MHz), cascading capability, and automotive-grade thermal reliability (RθJA = 25°C/W).
Technical Context
The UCD9090QRGZRQ1 implements a deterministic, time- and event-driven sequencing engine supporting dependencies on POWER_GOOD status, GPIO states, and inter-rail timing. Its 12-bit ADC samples all 10 monitored rails every 400 μs with ±4 LSB INL and ±2 LSB DNL, referenced to a 2.5-V internal voltage source accurate to ±1% over –40°C to 125°C.
It integrates dual-mode PWM outputs: eight FPWM pins (15.26 kHz–125 MHz) for closed-loop margining and two GPI-capable PWMs (0.93 Hz–7.81 MHz) for system-level timing control. Boolean logic builder enables up to 10 programmable GPOs using up to 8 GPI inputs, supporting ACPI-compliant low-power state transitions via pin-selected rail states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Rail count | 10 independently configurable voltage rails with enable, monitoring, and margining per rail |
| ADC resolution & speed | 12-bit, 200 ksps sampling; all 10 rails sampled every 400 μs for real-time health monitoring |
| Internal reference | 2.5 V ±1% over –40°C to 125°C; eliminates need for external precision reference |
| Margining PWM | FPWM1–FPWM8: 15.26 kHz–125 MHz; supports high-speed closed-loop trimming of DC-DC outputs |
| GPIO count | 23 total GPIOs: 8 configurable as GPI, 10 as GPO, 10 with PWM capability, plus JTAG pins |
| Operating temp | AEC-Q100 Grade 1: –40°C to 125°C ambient; qualified for under-hood automotive applications |
| Communication | PMBus v1.1 / I²C / SMBus up to 400 kHz; includes PMBus_ALERT, address pins, and CNTRL pin |
Pinout & Package
UCD9090QRGZRQ1 uses a 48-pin VQFN package (7.0 mm × 7.0 mm) with exposed thermal pad tied to ground plane. Pin functions are fully defined in TI SLVSBH9B Rev. May 2019.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MON1–MON10 | Analog monitor input | 0–2.5 V input range; monitors up to 10 voltage rails via resistor dividers |
| FPWM1–FPWM8 | Margining PWM output | Configurable 15.26 kHz–125 MHz output for closed-loop rail voltage adjustment |
| PMBus_CLK / DATA / ALERT | PMBus interface | Standard PMBus slave interface with open-drain ALERT for fault notification |
| PMBus_CNTRL | Sequencing trigger input | Active-high pin enabling pin-based sequence-on/off without host communication |
| GPIO1–GPIO23 | Programmable I/O | Supports GPI, GPO, Boolean logic inputs/outputs, and ACPI state selection (up to 3 GPIs) |
Key Features
| Feature | Design Value |
|---|---|
| 10-rail closed-loop margining | Adjusts each rail's output voltage to user-defined high/low margin thresholds using FPWM outputs |
| Nonvolatile fault logging | Stores up to 30 timestamped fault entries (including UV/OV, thermal, sequencing timeout) in on-chip flash |
| Boolean logic builder | Configures up to 10 GPOs using combinations of GPIs, POWER_GOOD flags, and fault/warning signals |
| Pin-selected rail states | Uses up to 3 GPIs to define 8 discrete rail configurations for low-power modes per ACPI specification |
| Cascading support | Enables synchronization and coordination across multiple UCD9090QRGZRQ1 devices for >10-rail systems |
Applications
| ADAS Domain Controller | Automotive Infotainment ECU |
|---|---|
Use Scenario: Sequencing and monitoring 10+ rails powering SoC, memory, camera ISPs, and radar MMICs in ISO 26262-compliant ADAS platforms. IC Role / Device Role / Timing Role: Centralized power health controller managing turn-on order, POWER_GOOD propagation, and fault-triggered safe shutdown. Use Value: Ensures deterministic boot sequence and logs root-cause voltage faults during field failures - critical for ASIL-B/D diagnostic coverage. |
Use Scenario: Managing power states for multi-core application processor, display drivers, audio codecs, and USB-C PD controllers in head-unit systems. IC Role / Device Role / Timing Role: Implements ACPI S0–S5 state transitions using pin-selected rail states and GPI-controlled sequencing. Use Value: Reduces system standby current by selectively disabling non-critical rails while maintaining fast wake-up latency. |
| Vehicle Networking Gateway | Electric Power Steering (EPS) Module |
Use Scenario: Coordinating power delivery to CAN FD transceivers, Ethernet PHYs, secure MCU, and isolated sensor interfaces in gateway ECUs. IC Role / Device Role / Timing Role: Monitors rail integrity across isolation barriers and triggers fail-safe reset via SYSTEM_RESET pin on detected OV/UV. Use Value: Maintains communication continuity during transient load dumps (ISO 7637-2 Pulse 5a) via robust 125°C operation and fast 400 μs sampling. |
Use Scenario: Controlling motor driver supplies, MCU core voltage, position sensor bias, and CAN interface rails in safety-critical EPS systems. IC Role / Device Role / Timing Role: Enforces strict sequencing dependencies (e.g., MCU must be powered before gate drivers) and logs undervoltage events during torque demand surges. Use Value: Supports ASIL-C compliance through nonvolatile fault logging, watchdog supervision, and redundant rail monitoring paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power supply sequencing and monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCD90120ARGCRQ1 | 12-rail capacity; adds 2x more MON inputs and enhanced PMBus command set; same VQFN-48 package | Required when >10 rails or advanced telemetry (e.g., current sensing via INA226 integration) is needed | Select UCD90120ARGCRQ1 if future scalability or higher rail density is required; pin-compatible upgrade path |
| TPS65381AQDAGQ1 | Dedicated 3-rail automotive PMIC with integrated DC-DCs/LDOs; no margining or FPWM; smaller QFN-32 package | Used where integrated power conversion + basic sequencing suffices (e.g., simple MCU subsystems) | Choose TPS65381AQDAGQ1 only for cost-sensitive, low-rail-count applications without margining or cascading needs |
Compared with UCD9090QRGZRQ1, UCD90120ARGCRQ1 extends rail count and telemetry depth while retaining full software compatibility, whereas TPS65381AQDAGQ1 trades flexibility for integration and lower BOM count in constrained subsystems.
Availability
UCD9090QRGZRQ1 is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, infotainment ECUs, and vehicle networking gateways requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.
Supply support for UCD9090QRGZRQ1 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for automotive, industrial, and communications markets.
The UCD9090QRGZRQ1 belongs to TI's Fusion Digital Power™ sequencer family, designed specifically for automotive power system health management - enabling reliable, standards-compliant sequencing, margining, and fault diagnostics in safety-critical ECUs.
FAQ
What is the maximum number of voltage rails the UCD9090QRGZRQ1 can monitor and sequence?
The UCD9090QRGZRQ1 supports up to 10 independent voltage rails for both monitoring and sequencing. Each rail can be assigned a dedicated MON pin (MON1–MON10), configured with programmable UV/OV thresholds, POWER_GOOD limits, and turn-on/turn-off delay timing. The device does not support more than 10 rails - exceeding this requires cascading with another UCD9090QRGZRQ1 or upgrading to UCD90120ARGCRQ1.
Does the UCD9090QRGZRQ1 support closed-loop voltage margining, and how is it implemented?
Yes, the UCD9090QRGZRQ1 supports closed-loop margining on all 10 rails using its eight FPWM outputs (FPWM1–FPWM8). Each FPWM pin generates a high-frequency PWM signal (15.26 kHz–125 MHz) fed into the feedback node of a DC-DC converter to adjust its output voltage toward user-defined margin-high or margin-low targets. The 12-bit ADC continuously verifies the resulting voltage, enabling real-time trimming without host intervention.
What are the operating temperature limits and qualification status of the UCD9090QRGZRQ1?
The UCD9090QRGZRQ1 is AEC-Q100 qualified for Grade 1 automotive operation, with a guaranteed ambient operating temperature range of –40°C to 125°C. It meets HBM ESD level H2 (±2500 V) and CDM level C4B (±750 V). Thermal performance is characterized with RθJA = 25°C/W in the 48-pin VQFN package, validated for under-hood deployment in demanding automotive environments.
Can the UCD9090QRGZRQ1 be used without a PMBus host, relying solely on pin-based control?
Yes, the UCD9090QRGZRQ1 supports fully autonomous pin-based operation. The PMBus_CNTRL pin acts as a hardware sequencing trigger, while up to 8 GPIOs can be configured as GPIs to drive Boolean logic for rail enable/disable decisions. Pin-selected rail states use up to 3 GPIs to define 8 discrete power configurations - enabling ACPI-compliant low-power modes without any PMBus communication.
How does fault logging work on the UCD9090QRGZRQ1, and what data is stored?
The UCD9090QRGZRQ1 stores up to 30 fault entries in on-chip nonvolatile flash memory, each including timestamp, rail identifier, fault type (e.g., OV_WARN, UV_FAULT, SEQUENCE_TIMEOUT), and peak measured value. Logs persist across power cycles and resets. Faults are captured automatically upon detection and accessible via PMBus READ_EIN command or TI Fusion GUI - supporting root-cause analysis in field-reliability investigations.
UCD9090QRGZRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Sequencer
- Number of Voltages Monitored:
- 10
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- -
- Reset:
- Active Low
- Reset Timeout:
- 2µs Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VQFN (7x7)
UCD9090QRGZRQ1 FAQ
1.How can I place an order for UCD9090QRGZRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for UCD9090QRGZRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for UCD9090QRGZRQ1 reliable?
The price and inventory of UCD9090QRGZRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCD9090QRGZRQ1 is usually 5 days.
3.What payment methods are accepted for UCD9090QRGZRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCD9090QRGZRQ1 transactions.
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4.How is shipping managed for UCD9090QRGZRQ1?
UCD9090QRGZRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCD9090QRGZRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for UCD9090QRGZRQ1?
For technical support, including UCD9090QRGZRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCD9090QRGZRQ1 requirements.
6.How does Aetrix verify that UCD9090QRGZRQ1 is sourced from the original manufacturer or authorized distributors?
All UCD9090QRGZRQ1 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 UCD9090QRGZRQ1 meets industry standards.
7.What is the process for return or replacement of UCD9090QRGZRQ1?
All UCD9090QRGZRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with UCD9090QRGZRQ1, 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 UCD9090QRGZRQ1 part is unused and in its original packaging.
Return procedure for UCD9090QRGZRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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