My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16002ATC+T
- Part No.:
- MAX16002ATC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 12-WQFN Exposed Pad
- Datasheet:
-
MAX16002ATC+T.pdf
- Description:
- IC SUPERVISOR 4 CHANNEL 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,807
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX16002ATC+T from Maxim Integrated is a low-voltage quad-voltage microprocessor supervisor IC in a 12-pin TQFN (4mm × 4mm) package, monitoring four independent supply rails (e.g., 3.3V, 2.5V, 1.8V, and adjustable down to 0.4V) with ±5% or ±10% threshold tolerance selection, 140ms minimum reset timeout, and integrated watchdog timer (1.6s typical timeout). It serves as system-level power integrity guardian in multivoltage ASICs and industrial controllers.
For engineers reviewing the MAX16002ATC+T datasheet, MAX16002ATC+T pinout, MAX16002ATC+T application, or MAX16002ATC+T equivalent, key selection criteria include its quad-rail monitoring capability, internal 30µA pullups eliminating external resistors, manual reset (MR) and margin enable (MARGIN) inputs, watchdog timer with 54s startup delay, and guaranteed operation down to VCC = 1V - critical for brownout resilience in embedded systems.
Technical Context
The MAX16002ATC+T implements a fixed-threshold + adjustable-input architecture: IN1–IN4 accept preset voltages (e.g., 3.3V/2.5V/1.8V per variant) or user-defined thresholds via resistor dividers, with hysteresis of 0.5% of VTH. Its RESET output asserts when any monitored voltage falls below its threshold or MR is pulled low, remaining active for the full reset timeout after recovery.
Watchdog functionality uses WDI edge detection to clear the 1.6s timer; failure to toggle within timeout triggers RESET assertion after a 54s startup window. The SRT pin supports capacitor-adjustable timeout (2.06 MΩ × CSRT), while TOL selects 5% or 10% threshold accuracy - enabling precise power sequencing control without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Rails | Four independent supplies (IN1–IN4), supporting fixed (3.3V/2.5V/1.8V) and adjustable (0.4V–5.5V) thresholds |
| Reset Timeout | 140ms minimum (SRT = VCC); adjustable up to seconds via external capacitor on SRT pin |
| Threshold Accuracy | ±5% (TOL = GND) or ±10% (TOL = VCC) - selectable per system noise margin requirements |
| Watchdog Timeout | 1.6s typical; 54s startup delay ensures safe boot before watchdog enforcement |
| Supply Current | 45–65µA at VCC = 3.3V - enables ultra-low-power supervision in battery-backed systems |
| Operating Range | -40°C to +125°C ambient; functional logic state guaranteed down to VCC = 1V |
| Output Type | Open-drain RESET and OUT1–OUT4 with internal 30µA pullups - eliminates need for 4 external resistors |
Pinout & Package
Package: 12-pin TQFN (4mm × 4mm), exposed pad (EP) internally connected to GND for thermal management. Pinout conforms to MAX16002-specific configuration (not shared with MAX16000/MAX16001).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 10, 11 | IN1–IN4 | Four independent monitored voltage inputs; each triggers dedicated fault response on falling edge |
| 3 | GND | Ground reference for all analog and digital circuitry; EP must be soldered to PCB ground plane |
| 4 | VCC | Unmonitored bias supply (1.0–5.5V); powers internal logic and provides pullup reference for open-drain outputs |
| 5, 6 | OUT3, OUT4 | Open-drain outputs asserting low on respective IN3/IN4 undervoltage; 30µA internal pullup to VCC |
| 7 | MARGIN | Active-low deassert input: pulls all outputs high regardless of rail status - enables margin testing |
| 8, 9 | OUT2, OUT1 | Open-drain outputs asserting low on respective IN2/IN1 undervoltage; 30µA internal pullup to VCC |
| 12 | TOL | Threshold tolerance select: GND = ±5%, VCC = ±10% - sets hysteresis and accuracy for all IN_ inputs |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitors | Enables discrete power-rail validation for complex ASICs - no shared reset masking of individual rail faults |
| Capacitor-adjustable reset timeout | Supports design-specific hold times (e.g., 200ms for FPGA configuration) without firmware changes or BOM additions |
| Integrated watchdog with startup delay | 54s window prevents false resets during cold boot while ensuring runtime lockup detection |
| Internal 30µA pullups on all outputs | Reduces component count by 4 resistors and associated layout area - critical for space-constrained modules |
| Margin enable function | Allows controlled deassertion of all outputs during production test - simplifies voltage margining without external logic |
Applications
| Storage Equipment | Servers |
|---|---|
Use Scenario: Power sequencing and fault detection in NVMe SSD controllers with multiple voltage domains (1.8V I/O, 1.2V core, 3.3V auxiliary). IC Role / Device Role / Timing Role: Quad-supervisor monitoring VDDIO, VDD12, VDD33, and adjustable bias rail; asserts RESET if any rail deviates >5%. Use Value: Prevents corrupted NAND writes during brownout by halting controller operation before data loss occurs. |
Use Scenario: Redundant power monitoring across CPU, memory, and PCIe switch rails in 1U rack servers. IC Role / Device Role / Timing Role: Independent IN1–IN4 track 0.85V CPU VDD, 1.2V DDR, 3.3V BMC, and 12V fan supply via resistor dividers. Use Value: Enables early fault isolation - e.g., detecting 12V fan rail collapse before thermal shutdown cascades. |
| Networking Equipment | Multivoltage ASICs |
Use Scenario: Supervision of line-card power supplies in carrier-grade Ethernet switches with 1.0V SerDes, 2.5V PHY, and 3.3V management rails. IC Role / Device Role / Timing Role: MAX16002ATC+T monitors four rails simultaneously; RESET holds processor in reset until all are stable post-power-up. Use Value: Eliminates need for discrete supervisors per rail - reduces BOM cost and PCB area by 60% vs. single-rail solutions. |
Use Scenario: Power-good validation for custom SoCs with heterogeneous voltage domains (e.g., 0.9V GPU, 1.8V I/O, 2.5V analog, adjustable reference). IC Role / Device Role / Timing Role: Uses adjustable IN4 threshold to monitor custom 0.95V rail; TOL pin set to ±5% for tight tolerance. Use Value: Guarantees correct logic state down to VCC = 1V - ensures reliable reset assertion even during deep brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16001ATC+T | Identical pinout and quad-monitoring function but lacks watchdog timer; no WDI/WDO pins. | Suitable only where system-level software or external hardware handles lockup detection. | Select when watchdog functionality is unnecessary - reduces complexity and cost by omitting unused circuitry. |
| TPS3808G33DBVR | Single-rail supervisor (3.3V fixed) with 200ms timeout; no multi-rail monitoring or adjustable thresholds. | Requires four separate devices to match MAX16002ATC+T's quad capability - increases board area and BOM count. | Choose only for simple single-rail systems; not a functional substitute for multivoltage supervision. |
Compared with MAX16001ATC+T, the MAX16002ATC+T adds watchdog protection without changing footprint or power consumption; versus TPS3808G33DBVR, it consolidates four independent supervisory functions into one IC - reducing component count, layout area, and interconnect risk in multirail designs.
Availability
MAX16002ATC+T is available at Aetrix Electronics and suitable for storage equipment, servers, and networking/telecommunication equipment requiring stable component supply across extended temperature ranges (-40°C to +125°C) and long product lifecycles.
Supply support for MAX16002ATC+T 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 demanding industrial, automotive, and communications applications - emphasizing reliability, integration, and wide-temperature performance.
The MAX16000–MAX16007 family was engineered specifically for multivoltage system supervision in space- and power-constrained environments, delivering quad/hex/octal monitoring with minimal external components and guaranteed operation from -40°C to +125°C.
FAQ
What is the operating voltage range for the MAX16002ATC+T?
The MAX16002ATC+T operates from VCC = 1.0V to 5.5V, with guaranteed correct logic state down to 1V - enabling robust reset assertion during severe brownout conditions. Input thresholds scale with VCC, maintaining accuracy across the full supply range. This allows deployment in systems with dynamically scaled or battery-depleted supplies without losing supervision fidelity.
How does the watchdog timer on the MAX16002ATC+T function?
The MAX16002ATC+T watchdog timer asserts RESET if the WDI input remains static beyond 1.6s (typical timeout), with a 54s startup delay after power-up or reset to accommodate boot sequences. A rising or falling edge on WDI clears the timer. Leaving WDI unconnected disables the watchdog. The timer is fully hardware-based and requires no firmware intervention.
Can the MAX16002ATC+T monitor voltages lower than 1.2V?
Yes - the MAX16002ATC+T supports adjustable thresholds down to 0.4V on any IN_ pin using external resistor dividers. For example, IN4 can monitor a 0.9V rail with ±5% accuracy (TOL = GND). Fixed thresholds include 0.9V, 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, and 5.0V depending on variant; MAX16002A/B/C/D/E specify exact combinations.
What is the purpose of the MARGIN pin on the MAX16002ATC+T?
The MARGIN pin on the MAX16002ATC+T is an active-low input that forces all outputs (OUT1–OUT4 and RESET) into a high-impedance or deasserted state - overriding all voltage-monitoring logic. This enables controlled margin testing where supply voltages are deliberately varied while preventing spurious resets or latch-ups during validation.
Does the MAX16002ATC+T require external pullup resistors on its outputs?
No - the MAX16002ATC+T integrates 30µA internal pullups on all open-drain outputs (RESET, OUT1–OUT4), eliminating the need for external resistors. Each output can also be driven by an external voltage up to 5.5V, allowing level-shifting compatibility with higher-voltage logic families without additional interface components.
MAX16002ATC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 1.8V, 2.5V, 3.3V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TQFN (4x4)
MAX16002ATC+T FAQ
1.How can I place an order for MAX16002ATC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16002ATC+T 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 MAX16002ATC+T reliable?
The price and inventory of MAX16002ATC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16002ATC+T is usually 5 days.
3.What payment methods are accepted for MAX16002ATC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16002ATC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16002ATC+T?
MAX16002ATC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16002ATC+T 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 MAX16002ATC+T?
For technical support, including MAX16002ATC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16002ATC+T requirements.
6.How does Aetrix verify that MAX16002ATC+T is sourced from the original manufacturer or authorized distributors?
All MAX16002ATC+T 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 MAX16002ATC+T meets industry standards.
7.What is the process for return or replacement of MAX16002ATC+T?
All MAX16002ATC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16002ATC+T, 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 MAX16002ATC+T part is unused and in its original packaging.
Return procedure for MAX16002ATC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16002ATC+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
