My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6886ETP
- Part No.:
- MAX6886ETP
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6886ETP.pdf
- Description:
- IC SUPERVISOR 6 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:157
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6886ETP from Maxim Integrated is a pin-selectable hex power-supply supervisory IC that monitors six independent voltage inputs (IN1–IN6) and one watchdog input (WDI), asserting an open-drain active-low RESET when any monitored supply falls below its selected threshold (±1% accuracy), the watchdog timer expires, or MR is asserted. It supports 32 factory-set undervoltage thresholds (e.g., 4.62V, 3.06V, 2.31V, 1.67V, 1.39V, 0.60V), ±1% threshold accuracy, and operates from -40°C to +85°C in telecom and server power management systems.
For engineers reviewing the MAX6886ETP datasheet, MAX6886ETP pinout, MAX6886ETP application, or MAX6886ETP equivalent, this page delivers verified technical context on pin-selectable threshold configuration, capacitor-adjustable reset/watchdog timeout periods (200ms default reset, 1.6s/102.4s dual-mode watchdog), margin disable functionality, and TQFN-20 package integration for multivoltage system supervision.
Technical Context
The MAX6886ETP implements a logic-array-based threshold selection architecture using five TH0–TH4 inputs to configure one of 32 undervoltage detection sets across six independent inputs, with tolerance selection (5% or 10%) controlled by TH4. Its watchdog circuit features dual-mode timing-initial mode (≈64× normal) activated at power-up or after timeout, transitioning to normal mode upon first WDI transition.
Power is derived via diode-ORing among IN1–IN4 or externally supplied VCC, with internal regulation generating a 2.55V DBP rail for logic and RESET output. Reset assertion is latched for a programmable timeout (SRT-pin adjustable from ~135ms to 280ms) or fixed 200ms, while watchdog timeout (SWT-pin adjustable from ~0.93s to 1.94s) supports both initial and normal modes with 50ns pulse detection on WDI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supervision Inputs | 6 voltage detectors (IN1–IN6) + 1 watchdog input (WDI) |
| Threshold Accuracy | ±1% over -40°C to +85°C - ensures precise supply monitoring without calibration |
| Reset Timeout | Factory default 200ms; adjustable via SRT capacitor (135–280ms range) - enables system-specific reset hold time |
| Watchdog Timeout | Factory default: 1.6s (normal) / 102.4s (initial); adjustable via SWT capacitor (0.93–1.94s normal mode) - supports boot-time and runtime supervision |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom infrastructure environments |
| Supply Current | 0.9–1.2mA typical - low quiescent draw for always-on supervision |
| Package | 20-pin TQFN (5mm × 5mm × 0.8mm) with exposed paddle - compact footprint, enhanced thermal performance |
Pinout & Package
The MAX6886ETP is housed in a 20-pin thin quad flat no-lead (TQFN-EP) package measuring 5mm × 5mm × 0.8mm, with an exposed paddle internally connected to GND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RESET) | Open-drain active-low reset output | Asserts when any INx drops below threshold, WDI times out, or MR is pulled low; requires external pullup |
| 2 (SRT) | Reset timeout adjust input | Connects to GND via capacitor to set custom reset delay (tRP = 4.348×10⁶ × CSRT); tie to VCC for 200ms default |
| 3 (SWT) | Watchdog timeout adjust input | Capacitor-to-GND sets normal-mode watchdog period; tie to VCC for factory defaults (1.6s/102.4s); tie to GND to disable |
| 4 (GND) | Ground reference | Primary return path for analog/digital circuitry and exposed paddle connection point |
| 5 (WDI) | Watchdog timer input | Accepts ≥50ns pulses; internally pulled down; resets watchdog on edge transition |
| 6 (MR) | Active-low manual reset input | Pull low ≥1µs to assert RESET; internally pulled up to DBP (10µA source) |
| 7 (MARGIN) | Margin test disable input | Pull low to freeze RESET state during supply margining; overrides MR if both active |
| 8–12 (TH4–TH0) | Threshold selection logic inputs | 5-bit binary code selects one of 32 threshold sets and 5%/10% tolerance; no internal pullup/pulldown |
| 13 (VCC) | Internal power-supply voltage | Internally powered from highest of IN1–IN4 (≥2.7V required); bypass with 1µF ceramic cap |
| 14 (DBP) | Digital bypass voltage output | 2.55V regulated rail for internal logic and RESET driver; bypass with 1µF ceramic cap |
| 15–20 (IN6–IN1) | Undervoltage detector inputs | Monitor supplies independently; each assigned threshold per TH0–TH4 setting; IN5/IN6 support only ADJ mode |
Key Features
| Feature | Design Value |
|---|---|
| 32-pin selectable thresholds | Enables single BOM part to supervise diverse supply rails (e.g., 5.0V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 0.6V) without firmware or external resistors |
| Capacitor-adjustable reset & watchdog timeouts | Eliminates need for precision timing resistors; supports system-specific timing via standard ceramic capacitors on SRT/SWT |
| Dual-mode watchdog timer | Initial mode (102.4s) accommodates slow boot sequences; transitions to shorter normal mode (1.6s) post-boot for runtime supervision |
| Margin disable function | Allows safe supply stress testing without unintended system reset - critical for validation of power delivery margins |
| ±1% threshold accuracy over temperature | Guarantees reliable trip points across full operating range without derating or guard-banding in design |
Applications
| Telecom Power Systems | Server PSU Monitoring |
|---|---|
Use Scenario: Supervising multiple DC/DC outputs (e.g., 12V, 5V, 3.3V, 1.8V, 1.2V) in a distributed telecom power shelf with hot-swap capability. IC Role / Device Role / Timing Role: Hex-supervisor asserts RESET to halt baseband processor and FPGA if any rail falls outside ±5% or ±10% window, coordinated with watchdog for software hang detection. Use Value: Prevents corrupted data transmission and hardware damage by ensuring all supplies are stable before enabling downstream logic. | Use Scenario: Monitoring redundant 12V, 5V, 3.3V, 2.5V, 1.8V, and 1.5V rails in a dual-CPU server motherboard with BIOS-initiated margin testing. IC Role / Device Role / Timing Role: Provides simultaneous undervoltage detection and manual reset coordination; MARGIN pin freezes RESET during supply stress tests. Use Value: Enables automated production-level power validation without false resets, reducing test cycle time and improving yield. |
| Networking Switch Fabric | Industrial Embedded Controller |
Use Scenario: Ensuring clean startup and runtime integrity of 3.3V SerDes, 2.5V PHY, 1.8V memory, and 1.2V core supplies in a 10G Ethernet switch ASIC subsystem. IC Role / Device Role / Timing Role: Uses TH0–TH4 to select 3.06V/2.31V/1.67V/1.39V/0.60V thresholds; watchdog monitors ASIC firmware health with 1.6s timeout. Use Value: Eliminates need for discrete supervisors per rail, reducing component count and PCB area while maintaining deterministic reset behavior. | Use Scenario: Supervising isolated 5V, 3.3V, and 2.5V supplies powering an ARM-based PLC controller with real-time OS and field I/O drivers. IC Role / Device Role / Timing Role: Generates 200ms reset pulse on power-up; uses adjustable watchdog (via SWT capacitor) to detect RTOS task stalls in safety-critical loops. Use Value: Meets IEC 61508 SIL-2 requirements for self-checking supervision with configurable timing and margin test support. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multivoltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6816ETP+ | 4-input supervisor (not 6-input); no watchdog; fixed 200ms reset; same TQFN-20 package | Suitable only for simpler systems with ≤4 rails and no software supervision needs | Select MAX6816ETP+ only when reduced channel count and absence of watchdog are acceptable trade-offs for cost reduction. |
| TPS3808G33DBVR | Single 3.3V supervisor with adjustable reset delay; no multi-rail threshold selection; SOT-23-6 package | Requires six separate devices to match MAX6886ETP's hex supervision, increasing board space and BOM complexity | Choose TPS3808G33DBVR only for point-of-load supervision where individual rail control and minimal footprint outweigh integration benefits. |
Compared with MAX6816ETP+ and TPS3808G33DBVR, the MAX6886ETP uniquely integrates six independent voltage monitors, dual-mode watchdog, and 32-pin-selectable thresholds in one TQFN-20 package-enabling consolidated supervision of complex multirail systems without layout or firmware changes.
Availability
MAX6886ETP is available at Aetrix Electronics and suitable for telecom infrastructure, server power management, and networking equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6886ETP 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 high-performance analog and mixed-signal semiconductor solutions for power, sensing, connectivity, and security applications.
The MAX6886ETP belongs to Maxim's power-supervisory product line, engineered specifically for robust, pin-configurable monitoring of multiple voltage rails in mission-critical computing and communications systems.
FAQ
What is the function of the MARGIN pin on the MAX6886ETP?
The MARGIN pin on the MAX6886ETP allows system-level power supply margin testing without triggering a reset. When pulled low, it holds the RESET output in its current state regardless of input voltage fluctuations or watchdog expiration. This enables safe validation of supply tolerances during production test or field diagnostics. The MAX6886ETP's MARGIN pin is internally pulled up to DBP via a 10µA current source and overrides MR if both are asserted simultaneously.
How do I configure the MAX6886ETP for a 3.3V supply monitoring with 5% tolerance?
To configure the MAX6886ETP for 3.3V monitoring with 5% tolerance, set TH4=1 (logic high to DBP) and TH3–TH0 to '1111' (pins 9–12 tied to DBP), selecting threshold option #1 from Table 2: IN1=4.62V, IN2=3.06V, IN3=2.31V, IN4=1.67V, IN5=IN6=0.60V. Assign the 3.3V rail to IN2, which yields a nominal 3.06V threshold (3.3V × 0.927 ≈ 3.06V), matching 5% undervoltage detection. The MAX6886ETP applies this setting at power-up and maintains it until next reset.
Can the MAX6886ETP monitor a 1.5V supply, and how is it configured?
Yes, the MAX6886ETP can monitor a 1.5V supply using threshold option #15 or #16 from Table 2, where IN4 is set to 1.39V (5% tolerance) or 1.31V (10% tolerance). For 1.5V with 5% tolerance, connect the 1.5V rail to IN4 and configure TH4–TH0 as '10001' (TH4=1, TH3=0, TH2=0, TH1=0, TH0=1), yielding a 1.39V threshold - detecting undervoltage at 1.5V × 0.927 = 1.39V. The MAX6886ETP supports this directly without external resistors, as IN4 is factory-set for fixed thresholds in these configurations.
What are the default reset and watchdog timeout periods for the MAX6886ETP?
By default, the MAX6886ETP provides a 200ms reset timeout period (tRP) when SRT is tied to VCC, and dual-mode watchdog timeouts of 1.6s (normal mode) and 102.4s (initial mode) when SWT is tied to VCC. These values are factory-trimmed and guaranteed over -40°C to +85°C. The MAX6886ETP uses these defaults unless SRT or SWT are connected to external capacitors or grounded, making them ideal for rapid prototyping and systems requiring known, stable timing without component selection.
Does the MAX6886ETP require external components for basic operation?
Yes, the MAX6886ETP requires three mandatory external components for reliable operation: a 1µF ceramic capacitor from VCC to GND, a 1µF ceramic capacitor from DBP to GND, and an external pullup resistor on the open-drain RESET output. Additional components - such as 0.1µF bypass capacitors on each IN1–IN6 input and optional timing capacitors on SRT/SWT - improve noise immunity and enable adjustable timeouts. The MAX6886ETP is designed for minimal external parts while delivering full hex-supervision functionality.
MAX6886ETP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 6
- Voltage - Threshold:
- 6 Selectable Threshold Combinations
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX6886ETP FAQ
1.How can I place an order for MAX6886ETP through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6886ETP 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 MAX6886ETP reliable?
The price and inventory of MAX6886ETP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6886ETP is usually 5 days.
3.What payment methods are accepted for MAX6886ETP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6886ETP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6886ETP?
MAX6886ETP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6886ETP 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 MAX6886ETP?
For technical support, including MAX6886ETP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6886ETP requirements.
6.How does Aetrix verify that MAX6886ETP is sourced from the original manufacturer or authorized distributors?
All MAX6886ETP 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 MAX6886ETP meets industry standards.
7.What is the process for return or replacement of MAX6886ETP?
All MAX6886ETP units undergo pre-shipment inspection (PSI). If there is an issue with MAX6886ETP, 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 MAX6886ETP part is unused and in its original packaging.
Return procedure for MAX6886ETP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6886ETP 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…
