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Analog Devices Inc./Maxim Integrated MAX16065ETM+TCDM
- Part No.:
- MAX16065ETM+TCDM
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Power Supply Controllers, Monitors
- Package:
- -
- Datasheet:
-
MAX16065ETM+TCDM.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
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Product details
Overview
MAX16065ETM+TCDM from Maxim Integrated is a 12-channel flash-configurable system manager IC that monitors, sequences, and protects complex power systems. It features ±2.5% high-side current sensing, a 1% accurate 10-bit ADC for voltage monitoring, nonvolatile fault logging, and SMBus/JTAG configuration - deployed in telecom base stations and server power rails.
For engineers reviewing the MAX16065ETM+TCDM datasheet, MAX16065ETM+TCDM pinout, MAX16065ETM+TCDM application, or MAX16065ETM+TCDM equivalent, this page delivers verified technical context, real-world sequencing constraints, flash-programmable thresholds, and validated alternative options for multi-rail power management design.
Technical Context
The MAX16065ETM+TCDM implements a dual-block sequencer with primary (Slot 1–12) and secondary sequence groups, each supporting configurable delays (20μs to 1.6s) and independent fault handling. Its 10-bit SAR ADC scans up to 12 MON inputs using selectable single-ended or differential mode, comparing each against programmable overvoltage, undervoltage, and early-warning limits stored in on-chip flash.
It integrates an internal high-side current-sense amplifier (gain = 6/12/24/48), charge-pump outputs (EN_OUT1–EN_OUT8) capable of +10V gate drive for external n-channel MOSFETs, and eight flash-configurable GPIOs usable as watchdog I/O, manual reset, or dedicated fault outputs - all operating across -40°C to +85°C with 2.8V–14V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Channels | 12 voltage inputs (MON1–MON12) + 1 high-side current channel (CSP/CSM) |
| ADC Resolution & Accuracy | 10-bit SAR ADC with ±0.7% gain error and ±1 LSB offset - enables precise rail margining and fault detection at ±2.5% total current-sense accuracy |
| Sequencing Outputs | 12 EN_OUT pins (EN_OUT1–EN_OUT12); EN_OUT1–EN_OUT8 support charge-pump gate drive (+10V above GND) for direct n-MOSFET control |
| Nonvolatile Memory | On-chip flash stores configuration (thresholds, timing, sequence order) and automatically logs fault data with lock-bit protection during shutdown |
| Interface Support | SMBus (400kHz, timeout-enabled) and JTAG - mutually exclusive; used for register access, flash programming, and fault read-back |
| Operating Voltage | 2.8V to 14V VCC supply - allows direct connection to 12V intermediate bus without external regulators |
| Temperature Range | -40°C to +85°C - fully specified across industrial temperature range with timing accuracy ±8% over full range |
Pinout & Package
MAX16065ETM+TCDM is housed in a 48-pin, 7mm × 7mm TQFN-EP package with exposed pad connected to GND. Pin functions are validated per Maxim's official pin description table and functional diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MON1–MON12 | Voltage monitor inputs | Configurable single-ended/differential analog inputs for rail monitoring; each assigned to sequencer slot 1–12 |
| CSP / CSM | High-side current-sense terminals | Differential inputs to integrated current-sense amplifier; supports gain settings 6/12/24/48 for wide dynamic range |
| EN_OUT1–EN_OUT8 | Charge-pump enabled sequencing outputs | Drive external n-channel MOSFET gates up to +10V above GND; enable precise power-up/down control of downstream rails |
| EN_OUT9–EN_OUT12 | Standard push-pull/open-drain outputs | Programmable active-high/low logic; used for auxiliary sequencing, power-good signaling, or fault indication |
| GPIO1–GPIO8 | Flash-configurable I/O | Assignable as watchdog input/output, manual reset, margin enable, or dedicated fault outputs - no external logic required |
| SCL / SDA / A0 | SMBus interface | 400kHz bidirectional bus with timeout; A0 sets 4-state address for multi-device configurations |
| TCK / TMS / TDI / TDO | JTAG test interface | IEEE 1149.1-compliant boundary scan and flash programming path - alternative to SMBus for factory/config updates |
| RESET | Configurable reset output | Asserts low during boot-up and after sequencing timeout; deasserts only when all monitored rails meet programmed thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent sequencer blocks | Primary (Slot 1–12) and secondary sequence groups with separate enable controls (EN/EN2), fault isolation, and independent timeout handling |
| Nonvolatile fault event logger | Automatically writes fault flags, timestamped channel voltages, and failing slot number to protected flash memory during system shutdown - immune to power loss |
| Configurable early-warning threshold | Per-channel limit selectable as either overvoltage or undervoltage alert - enables predictive rail health monitoring before hard fault occurs |
| Integrated ABP/DBP regulators | On-die 3.0V analog (ABP) and digital (DBP) regulators - bypassable for <3.6V operation; DBP powers charge pump and flash circuitry |
| Robust input deglitching | Programmable MON_ input filtering (up to 120μs transient rejection) prevents false faults from noise or load transients |
Applications
| Telecom Base Station Power Management | Server Rack PSU Sequencing |
|---|---|
Use Scenario: Coordinating startup of RF power amplifiers, FPGAs, and baseband processors across multiple voltage domains in 5G macro cells. IC Role / Device Role / Timing Role: System manager performing slot-based power-up sequencing, real-time rail monitoring, and automatic fault shutdown with nonvolatile logging. Use Value: Eliminates need for discrete timers and comparators; reduces BOM count by integrating 12-rail monitoring, sequencing, and fault response in one IC. |
Use Scenario: Controlling power delivery to CPU, memory, and PCIe peripherals in 1U/2U rack servers with strict ramp-rate and timing requirements. IC Role / Device Role / Timing Role: Centralized sequencer enforcing precise inter-rail delays (20μs–1.6s), margining, and coordinated power-down on thermal or watchdog fault. Use Value: Enables compliance with Intel VRD/IMVP and AMD SVI2 specifications via programmable thresholds and timing - no firmware changes needed. |
| Storage RAID Controller Power Supervision | Industrial Network Switch Power Orchestration |
Use Scenario: Managing redundant 3.3V, 5V, and 12V supplies for SAS/SATA controllers, NVMe drives, and cache memory in enterprise storage arrays. IC Role / Device Role / Timing Role: Fault-tolerant supervisor detecting undervoltage on critical rails, triggering graceful shutdown, and preserving fault history in flash. Use Value: Prevents data corruption during brownout by asserting RESET before rail collapse and retaining diagnostic data for root-cause analysis. |
Use Scenario: Sequencing PoE injectors, switch ASICs, and PHYs in managed Layer 3 switches with mixed 1.2V–12V rail requirements. IC Role / Device Role / Timing Role: Dual-sequence controller enabling primary (core logic) and secondary (PoE subsystem) power domains with independent fault containment. Use Value: Isolates PoE faults without resetting core switching fabric - maintains network uptime while logging fault conditions for remote diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar system management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16066ETL+ | 8-channel version in 40-pin TQFN; identical architecture, reduced MON_/EN_OUT_ count, no MON11/MON12/GPIO7/GPIO8 | Suitable for simpler systems requiring ≤8 rails; lower pin count simplifies layout but eliminates dual-GPIO watchdog flexibility | Select MAX16066ETL+ when board space or rail count permits reduction - same firmware compatibility and flash configuration flow |
| TPS40400RHLR | 6-channel PMBus system manager from TI; lacks nonvolatile fault logging, high-side current sense, and secondary sequencer block | Targeted at cost-sensitive mid-tier servers; requires external EEPROM for configuration persistence and separate current-sense IC | Choose TPS40400RHLR only if SMBus-only interface, lower channel count, and absence of flash-based fault retention are acceptable trade-offs |
Compared with MAX16065ETM+TCDM, MAX16066ETL+ offers identical feature depth at reduced scale, while TPS40400RHLR trades nonvolatile logging, integrated current sensing, and dual sequencing for lower unit cost and PMBus familiarity - making MAX16065ETM+TCDM optimal for high-reliability, fault-diagnostic-critical infrastructure.
Availability
MAX16065ETM+TCDM is available at Aetrix Electronics and suitable for telecom base station power management, server rack PSU sequencing, and industrial network switch power orchestration requiring stable component supply and long-term lifecycle support.
Supply support for MAX16065ETM+TCDM 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for power, sensing, and connectivity applications - emphasizing reliability, integration, and configurability for demanding infrastructure systems.
The MAX16065 product line delivers flash-configurable, fault-resilient power sequencing and monitoring for multi-rail systems where deterministic startup, nonvolatile diagnostics, and field-upgradable behavior are mandatory - targeting telecom, datacenter, and industrial control markets.
FAQ
What is the primary function of the MAX16065ETM+TCDM in a power system?
The MAX16065ETM+TCDM serves as a flash-configurable system manager that monitors up to 12 voltage rails and one high-side current channel, sequences power-up/down across 12 outputs with programmable delays, and logs faults to nonvolatile memory. Its role is to replace discrete supervisors and timers in complex infrastructure equipment - ensuring reliable, repeatable, and diagnosable power delivery in the MAX16065ETM+TCDM's target applications.
Does the MAX16065ETM+TCDM support both SMBus and JTAG interfaces simultaneously?
No - the MAX16065ETM+TCDM supports SMBus and JTAG as mutually exclusive configuration interfaces. Only one may be active at a time, as confirmed in the Functional Diagram and Detailed Description sections of the datasheet. The MAX16065ETM+TCDM uses internal arbitration to prevent bus contention, and switching between interfaces requires a hardware reset or power cycle to reinitialize communication logic.
How does the nonvolatile fault logger in the MAX16065ETM+TCDM operate during unexpected power loss?
The MAX16065ETM+TCDM's nonvolatile fault logger automatically captures fault flags, channel voltage readings, and the failing sequencer slot into on-chip flash memory upon detection of a critical fault or system shutdown event - before VCC drops below UVLO. A lock bit is set to protect the logged data from accidental overwrite, ensuring diagnostic integrity even after power restoration. This behavior is intrinsic to the MAX16065ETM+TCDM's flash architecture and requires no host intervention.
Can EN_OUT1–EN_OUT8 of the MAX16065ETM+TCDM directly drive n-channel MOSFETs without external level-shifting?
Yes - EN_OUT1–EN_OUT8 integrate a charge-pump circuit that generates up to +10V above GND, enabling direct gate drive of standard n-channel MOSFETs used in high-side power-switching applications. This eliminates external boost circuitry and is explicitly documented in the Electrical Characteristics table under "OUT_ Overdrive (Charge Pump)" for the MAX16065ETM+TCDM.
What is the operating voltage range for the MAX16065ETM+TCDM, and how does it interface with a 12V intermediate bus?
The MAX16065ETM+TCDM operates from 2.8V to 14V on its VCC pin, allowing direct connection to a 12V intermediate bus without regulation. Its internal ABP and DBP regulators derive analog and digital supplies from VCC, and the device remains fully functional across this range - including flash programming and ADC operation - as verified in the Absolute Maximum Ratings and Electrical Characteristics tables for the MAX16065ETM+TCDM.
MAX16065ETM+TCDM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- -
- Voltage - Input:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX16065ETM+TCDM FAQ
1.How can I place an order for MAX16065ETM+TCDM through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16065ETM+TCDM 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 MAX16065ETM+TCDM reliable?
The price and inventory of MAX16065ETM+TCDM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16065ETM+TCDM is usually 5 days.
3.What payment methods are accepted for MAX16065ETM+TCDM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16065ETM+TCDM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16065ETM+TCDM?
MAX16065ETM+TCDM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16065ETM+TCDM 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 MAX16065ETM+TCDM?
For technical support, including MAX16065ETM+TCDM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16065ETM+TCDM requirements.
6.How does Aetrix verify that MAX16065ETM+TCDM is sourced from the original manufacturer or authorized distributors?
All MAX16065ETM+TCDM 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 MAX16065ETM+TCDM meets industry standards.
7.What is the process for return or replacement of MAX16065ETM+TCDM?
All MAX16065ETM+TCDM units undergo pre-shipment inspection (PSI). If there is an issue with MAX16065ETM+TCDM, 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 MAX16065ETM+TCDM part is unused and in its original packaging.
Return procedure for MAX16065ETM+TCDM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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