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Texas Instruments UCD90160RGCT
- Part No.:
- UCD90160RGCT
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
UCD90160RGCT.pdf
- Description:
- IC SUPERVISOR 16 CHANNEL 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,506
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Product details
Overview
UCD90160RGCT from Texas Instruments is a 16-rail PMBus/I²C-addressable power-supply sequencer and monitor with integrated 12-bit ADC, closed-loop margining for up to 10 rails, programmable watchdog timer, and ACPI-compliant pin-selected rail states. It samples all 16 rails every 400 μs and supports real-time fault logging in nonvolatile flash memory for server and telecom power management systems.
For engineers reviewing the UCD90160RGCT datasheet, UCD90160RGCT pinout, UCD90160RGCT application, or UCD90160RGCT equivalent, key selection considerations include rail count (16), ADC resolution (12-bit), sampling interval (400 μs), margining capability (10 rails, closed-loop), and support for PMBus/I²C + JTAG interfaces in a 64-pin VQFN package.
Technical Context
The UCD90160RGCT implements a deterministic sequencing engine with time-, rail-, and pin-based dependencies, enabling precise control of power-up/down sequences across complex multi-rail systems. Its 12-bit ADC uses a 2.5-V ±0.5% internal reference and supports four programmable UV/OV thresholds per monitored rail.
It integrates a Boolean logic builder for up to 16 configurable GPOs driven by 8 GPI inputs, plus eight FPWM outputs (15.26 kHz–125 MHz) and four fixed-frequency PWM outputs (0.93 Hz–7.81 MHz), enabling synchronized switching and dynamic voltage margining without external controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Rail count | 16 independent voltage rails monitored and sequenced |
| ADC resolution | 12-bit with ±4 LSB INL, enabling accurate rail voltage tracking within ±0.06% of full-scale |
| Sampling rate | All 16 rails sampled every 400 μs - supports fast transient detection and real-time health monitoring |
| Margining capability | Closed-loop margining for up to 10 rails using FPWM outputs; supports four-corner testing and active DC trim |
| Communication interfaces | PMBus/I²C slave (up to 400 kHz), JTAG debug, and dual PMBus address pins (PMBUS_ADDR0/1) |
| Operating temperature | –40°C to +110°C ambient, with junction limit of 125°C - suitable for industrial and telecom environments |
| Nonvolatile storage | On-chip flash retains configuration, fault logs (12 entries), and peak values for failure analysis and field diagnostics |
Pinout & Package
UCD90160RGCT is housed in a 64-pin VQFN (RGC) package with 9.00 mm × 9.00 mm body size and exposed thermal pad tied to ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MON1–MON13 | Analog input | 0–2.5 V rail monitoring inputs with 8 MΩ input impedance and 10 pF capacitance |
| MON14–MON16 | Analog input | 0.2–2.5 V rail monitoring inputs optimized for low-voltage rails (e.g., 0.8 V, 1.2 V) |
| FPWM1–FPWM8 | PWM output / GPIO | Configurable 15.26 kHz–125 MHz PWM outputs for closed-loop margining or general-purpose timing |
| PMBUS_CLK / PMBUS_DATA | Open-drain bidirectional bus | Require 3.3-V pullups; support PMBus v1.2 commands for remote configuration and telemetry |
| GPIO1–GPIO18 | Programmable I/O | 26 total GPIOs (18 listed in pin map); 8 usable as GPIs for Boolean logic or ACPI state selection |
| V33A / V33D / V33DIO1 / V33DIO2 | Power supplies | Separate analog (3.3 V), digital core (3.3 V), and dual digital I/O (3.3 V) rails for noise isolation |
Key Features
| Feature | Design Value |
|---|---|
| 16-rail sequencing engine | Supports time-, rail-, and pin-triggered dependencies with configurable turn-on/off delays and PG thresholds |
| Nonvolatile fault logging | Stores up to 12 fault entries with timestamps in on-chip flash - enables post-failure root-cause analysis |
| Pin-selected rail states | Uses up to 3 GPIs to define 8 discrete rail configurations - implements ACPI S0–S5 low-power modes |
| Multiphase PWM clock generator | Eight FPWM outputs with independent frequency and duty-cycle control - synchronizes multiple DC/DC converters |
| Flexible Boolean logic builder | 16 programmable GPOs driven by 8 GPIs, system flags (POWER_GOOD, WARN_OV), and internal states |
Applications
| Server Power Management | Telecom Line Card Sequencing |
|---|---|
Use Scenario: Sequencing and monitoring 16 voltage rails (e.g., 12 V, 3.3 V, 1.8 V, 0.8 V) across CPU, memory, FPGA, and I/O subsystems in 1U/2U rack servers. IC Role / Device Role / Timing Role: Centralized power supervisor coordinating rail enable timing, detecting undervoltage faults, and triggering graceful shutdown via SYSTEM_RESET. Use Value: Prevents latch-up and data corruption during power transitions; reduces firmware complexity by offloading sequencing logic from host processor. | Use Scenario: Managing power sequencing for multi-core DSPs, high-speed SerDes, and RF front-end ICs on telecom line cards with strict AC/DC timing requirements. IC Role / Device Role / Timing Role: Real-time rail monitor and sequencer enforcing <400 μs sampling intervals and sub-millisecond response to OV/UV events on critical 1.2 V and 0.85 V rails. Use Value: Ensures compliance with GR-63-CORE thermal and GR-1089-CORE EMI/power integrity standards through deterministic margining and fault logging. |
| Industrial ATE Power Control | Storage System Power Health Monitoring |
Use Scenario: Controlling power delivery to DUT (device under test) boards with mixed-voltage ICs (ASICs, ADCs, DACs) requiring precise ramp rates and voltage tolerances. IC Role / Device Role / Timing Role: Programmable sequencer with closed-loop margining for four-corner testing - adjusts rail voltages dynamically to ±3% limits per MIL-STD-883H. Use Value: Eliminates need for external margining DACs and relays; enables automated test scripts to validate rail stability across temperature and load corners. | Use Scenario: Monitoring and protecting dual-controller NVMe SSD enclosures with redundant 12 V, 3.3 V, and 1.8 V rails feeding PCIe switches, NAND controllers, and DRAM buffers. IC Role / Device Role / Timing Role: Fault-aware supervisor logging overvoltage warnings on 3.3 V VDDQ rails and initiating WARN_OV_3.3 V alerts before catastrophic failure. Use Value: Extends mean time between failures (MTBF) by correlating rail drift trends with SMART logs and triggering predictive maintenance via PMBus READ_VOUT commands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-supply sequencer and monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCD90124RGCT | 12-rail version; lacks FPWM outputs for closed-loop margining; same 64-pin VQFN package and PMBus interface | Suitable for simpler systems with ≤12 rails and no margining requirement | Select when rail count and margining capability are lower priority than cost reduction |
| LM9926RHBR | 8-rail sequencer with 10-bit ADC, no PMBus, only SMBus; no nonvolatile fault logging or Boolean logic builder | Targeted at cost-sensitive industrial PLCs where basic sequencing suffices | Choose for legacy SMBus-only systems lacking PMBus infrastructure or flash-based diagnostics needs |
Compared with UCD90160RGCT, UCD90124RGCT reduces rail count and removes margining capability but maintains identical footprint and software compatibility, while LM9926RHBR trades advanced telemetry and configurability for lower integration and protocol simplicity - making it less suitable for server-grade health monitoring.
Availability
UCD90160RGCT is available at Aetrix Electronics and suitable for server power management, telecom line card sequencing, and industrial ATE applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for UCD90160RGCT 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, embedded processing, and power management technologies, with leadership in digital power control ICs since 2005.
The UCD90160RGCT belongs to TI's Fusion Digital Power sequencer family, designed specifically for high-reliability, multi-rail power systems in servers, storage, and telecommunications infrastructure where deterministic sequencing, real-time monitoring, and field-diagnostic capability are mandatory.
FAQ
What is the maximum number of voltage rails the UCD90160RGCT can monitor and sequence?
The UCD90160RGCT monitors and sequences up to 16 voltage rails. All 16 rails are sampled simultaneously every 400 μs using its integrated 12-bit ADC. Each rail supports independent undervoltage and overvoltage warning and fault thresholds, and up to 10 rails can be closed-loop margined using the device's FPWM outputs. This rail count is fixed and confirmed in the official datasheet Section 1 (Features) and Section 5 (Pin Configuration).
Does the UCD90160RGCT support closed-loop voltage margining, and how many rails does it cover?
Yes, the UCD90160RGCT supports closed-loop margining for up to 10 voltage rails. It achieves this using eight FPWM outputs (FPWM1–FPWM8), each configurable from 15.26 kHz to 125 MHz, combined with internal feedback circuitry that adjusts rail voltage to match user-defined margin thresholds. This capability is explicitly stated in the datasheet Features section and validated in Section 7.3.1 (Rail Configuration).
What communication interfaces does the UCD90160RGCT support, and what are their key electrical specs?
The UCD90160RGCT supports PMBus/I²C (up to 400 kHz), JTAG, and SMBus-compatible interfaces. PMBus_CLK and PMBUS_DATA pins require 3.3-V pullups and operate with open-drain logic; timing parameters include t(SU:DAT) = 100 ns and t(TIMEOUT) = 35 ms. JTAG signals (TCK, TDO, TDI, TMS, TRST, TRCK) are fully compliant with IEEE 1149.1. These specifications are documented in Sections 5, 6.6, and 7.3 of the SLVSAC8D datasheet.
How does the UCD90160RGCT implement ACPI-compliant power states?
The UCD90160RGCT implements ACPI-compliant power states via its Pin-Selected Rail States feature, which uses up to three GPI inputs to define eight discrete rail configurations (2³ = 8 states). These states map directly to ACPI S0–S5 modes, enabling hardware-controlled low-power operation without host CPU intervention. The feature is detailed in Section 7.1 (Overview) and Section 7.3.1 of the datasheet, with pin assignment supported in TI's Fusion GUI.
What type of nonvolatile memory does the UCD90160RGCT use for configuration and fault logging?
The UCD90160RGCT uses on-chip flash memory for nonvolatile storage of configuration parameters, fault logs (up to 12 entries with timestamps), and peak rail values. It guarantees 20,000 erase/write cycles and 100-year data retention at 25°C. This flash is separate from SRAM used for runtime operation and is programmed via PMBus commands or TI's Fusion GUI - as specified in Section 6.5 (Electrical Characteristics) and Section 7.1 of the datasheet.
UCD90160RGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Sequencer
- Number of Voltages Monitored:
- 16
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- -
- Reset:
- Active Low
- Reset Timeout:
- 2µs Minimum
- Operating Temperature:
- -40°C ~ 110°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-VQFN (9x9)
UCD90160RGCT FAQ
1.How can I place an order for UCD90160RGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCD90160RGCT 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 UCD90160RGCT reliable?
The price and inventory of UCD90160RGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCD90160RGCT is usually 5 days.
3.What payment methods are accepted for UCD90160RGCT?
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4.How is shipping managed for UCD90160RGCT?
UCD90160RGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCD90160RGCT 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 UCD90160RGCT?
For technical support, including UCD90160RGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCD90160RGCT requirements.
6.How does Aetrix verify that UCD90160RGCT is sourced from the original manufacturer or authorized distributors?
All UCD90160RGCT 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 UCD90160RGCT meets industry standards.
7.What is the process for return or replacement of UCD90160RGCT?
All UCD90160RGCT units undergo pre-shipment inspection (PSI). If there is an issue with UCD90160RGCT, 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 UCD90160RGCT part is unused and in its original packaging.
Return procedure for UCD90160RGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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