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Analog Devices Inc./Maxim Integrated MAX16011TAC+T
- Part No.:
- MAX16011TAC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16011TAC+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,200
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Product details
Overview
MAX16011TAC+T from Analog Devices is an ultra-small, low-power dual-comparator overvoltage/undervoltage protection IC in an 8-pin TDFN package. It monitors input voltage windows via independent INA+ (undervoltage) and INB- (overvoltage) inputs, delivers open-drain OUTA/OUTB outputs rated to 72V, features 7.5% hysteresis (TAC suffix), and operates across -40°C to +125°C for telecom power rails and multicell battery stacks.
For engineers reviewing the MAX16011TAC+T datasheet, MAX16011TAC+T pinout, MAX16011TAC+T application, or MAX16011TAC+T equivalent, this page provides verified functional role, exact pin functions, real-world timing behavior (2μs max propagation delay), supply current (25–40µA across 12–48V), and validated alternatives for window-detection designs requiring fail-safe enable control and high-voltage transient resilience.
Technical Context
The MAX16011TAC+T implements two independent comparators with internal 1.245V threshold reference (±3mV tolerance), fixed 7.5% hysteresis (VTH+ = 1.15V, VTH− = 1.12V), and logic-selectable OUTB polarity via LOGIC pin. Its EN input is active-high, enabling both comparators simultaneously while forcing outputs low when disabled.
VCC powers the device from 5.5V to 72V; all inputs (INA+, INB-, LOGIC, EN) tolerate −0.3V to +12V, and outputs (OUTA, OUTB) withstand −0.3V to +80V. Propagation delay is guaranteed ≤2μs across temperature, and undervoltage lockout activates below 4.75V to prevent erratic operation during brownout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.5V to 72V - supports direct connection to 48V telecom rails, 60V industrial buses, and up to 12-cell Li-ion stacks without external regulators. |
| Threshold Voltage (VTH+) | 1.15V (min) to 1.18V (max) - sets precise overvoltage trip point when used with external resistor divider on INB−. |
| Hysteresis | 7.5% - prevents chatter near trip thresholds in noisy environments; ensures stable output transitions during slow-rising/falling inputs. |
| Propagation Delay | ≤2μs - enables fast response to transients, critical for protecting downstream DC-DC converters and FPGAs from overvoltage faults. |
| Supply Current (ICC) | 25µA (typ) at 12V, 40µA (max) at 48V - ultra-low quiescent draw preserves battery life in always-on monitoring applications. |
| Operating Temperature | −40°C to +125°C - fully specified for under-hood automotive modules, base station power supplies, and industrial PLCs. |
| Output Type | Open-drain (OUTA/OUTB) - allows flexible pull-up to any voltage ≤72V, enabling level-shifting and wired-OR fault signaling. |
Pinout & Package
MAX16011TAC+T uses a 3mm × 3mm, 8-pin TDFN-EP package with exposed pad (EP) connected to GND for thermal and EMI performance. Pin 1 is INA+, pin 2 is OUTA, pin 3 is EN, pin 4 is INB−, pin 5 is VCC, pin 6 is GND, pin 7 is LOGIC, and pin 8 is OUTB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INA+ | Undervoltage threshold input | Monitors falling voltage; OUTA asserts low when INA+ drops below VTH− (1.12V) - used for brownout detection. |
| 2 OUTA | Open-drain undervoltage output | Sinks current when undervoltage occurs; requires external pull-up to VCC or system rail; drives enable/disable of DC-DC converters. |
| 3 EN | Active-high enable input | Drives internal comparators ON when high; forces OUTA/OUTB low when low - enables system-level power sequencing control. |
| 4 INB− | Overvoltage threshold input | Monitors rising voltage; OUTB asserts low (LOGIC = GND) or high (LOGIC = VCC) when INB− exceeds VTH+ (1.15V). |
| 5 VCC | Positive supply input | Accepts 5.5V–72V; powers internal regulator and comparators; bypass with ≥0.1µF capacitor to GND for noise immunity. |
| 6 GND | Ground reference | Return path for all analog and digital circuitry; must be low-impedance; EP pad tied to same ground plane. |
| 7 LOGIC | OUTB logic polarity selector | Connect to GND for active-low OUTB (low = overvoltage), or VCC for active-high OUTB (high = overvoltage). |
| 8 OUTB | Open-drain overvoltage output | Configurable logic polarity; used for fault flagging, latch control, or disabling high-side switches during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitors | Simultaneous undervoltage (INA+) and overvoltage (INB−) detection enables full window supervision without external components. |
| 7.5% hysteresis (TAC variant) | Guarantees robust noise rejection in high-EMI telecom and industrial settings; eliminates false triggering near threshold crossings. |
| 72V-tolerant open-drain outputs | OUTA/OUTB drive external pull-ups to system rails up to 72V - supports direct interfacing with 48V backplanes and isolated controllers. |
| 2μs max propagation delay | Ensures sub-microsecond fault response - critical for protecting sensitive loads like FPGAs, ASICs, and high-speed ADCs. |
| −40°C to +125°C operation | Validated across full industrial temperature range; no derating required for server PSUs, base station power, or battery management systems. |
Applications
| 48V Telecom Power Supervision | Notebook Battery Stack Protection |
|---|---|
|
Use Scenario: Monitoring 48V DC distribution bus in telecom shelf power systems for overvoltage (>57V) and undervoltage (<40V) conditions. IC Role / Device Role / Timing Role: MAX16011TAC+T acts as primary window detector; INA+ and INB− sense scaled bus voltage; OUTA/OUTB trigger shutdown of downstream converters within 2μs. Use Value: Prevents catastrophic failure of line cards during load dump or rectifier faults by enforcing strict voltage compliance before enabling power delivery. |
Use Scenario: Supervising 3–12 series Li-ion cells (12.6V–50.4V) in premium notebooks to detect cell imbalance-induced overvoltage and pack under-voltage. IC Role / Device Role / Timing Role: MAX16011TAC+T compares scaled pack voltage against programmable thresholds; LOGIC pin configures OUTB as active-high fault flag for EC firmware. Use Value: Enables safe charging/discharging by disabling charge FETs upon violation, extending battery cycle life and meeting UL 2054 safety requirements. |
| Industrial PLC I/O Module Protection | Server Redundant PSU Monitoring |
|
Use Scenario: Guarding 24V/48V field I/O power rails in programmable logic controllers against surge-induced overvoltage and brownout. IC Role / Device Role / Timing Role: MAX16011TAC+T interfaces with isolated gate drivers; EN synchronizes monitoring with CPU boot sequence; OUTA latches off 24V DC-DC on undervoltage. Use Value: Eliminates need for discrete op-amps and voltage references, reducing BOM count and PCB area in space-constrained DIN-rail modules. |
Use Scenario: Verifying voltage integrity across redundant 12V server PSUs before enabling OR-ing FETs in hot-swap backplanes. IC Role / Device Role / Timing Role: MAX16011TAC+T monitors each PSU's 12V output; OUTA/OUTB feed into AND logic to assert "PSU OK" only when both rails are in window. Use Value: Ensures zero-voltage switching of OR-ing MOSFETs, preventing shoot-through and improving system MTBF in datacenter infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-threshold voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16010TAC+T | Complementary EN/EN enable inputs instead of single EN; identical comparator specs, hysteresis, and pinout except pin 3 (EN) and pin 6 (EN) swapped. | Requires inverted enable signal generation; better suited for legacy designs using complementary logic control. | Select MAX16010TAC+T only if existing layout uses EN/EN pairing; MAX16011TAC+T simplifies enable routing with single active-high input. |
| TLV809E33DBZR | Single-channel 3.3V reset IC with 200ms reset timeout; no adjustable threshold, no hysteresis option, no overvoltage detection capability. | Limited to basic microcontroller reset; cannot perform window monitoring or support >6V supplies. | Use TLV809E33DBZR only for simple undervoltage reset in low-voltage embedded systems; not a functional substitute for MAX16011TAC+T. |
Compared with MAX16010TAC+T, the MAX16011TAC+T reduces enable interface complexity by replacing dual complementary inputs with one active-high EN, while maintaining identical protection accuracy and speed; TLV809E33DBZR lacks dual-threshold capability and high-voltage operation entirely, making it unsuitable for telecom or battery-stack applications.
Availability
MAX16011TAC+T is available at Aetrix Electronics and suitable for 48V telecom power supervision, notebook battery stack protection, and industrial PLC I/O module protection requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MAX16011TAC+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision power, sensing, and protection solutions.
The MAX16011TAC+T belongs to the MAX16010–MAX16014 family of ultra-small overvoltage protection/detection circuits, designed specifically for high-transient, high-voltage systems including telecom power, multicell batteries, and industrial equipment where reliability and compactness are critical.
FAQ
What is the exact hysteresis value for MAX16011TAC+T?
The MAX16011TAC+T has a guaranteed 7.5% hysteresis, meaning VTH+ = 1.15V (min) and VTH− = 1.12V (max) at TA = +25°C. This hysteresis is factory-trimmed and remains stable across −40°C to +125°C, ensuring consistent noise immunity in harsh environments. The "C" in TAC explicitly denotes the 7.5% variant per the datasheet ordering table.
Can MAX16011TAC+T monitor both overvoltage and undervoltage simultaneously?
Yes, MAX16011TAC+T performs true simultaneous window monitoring: INA+ detects undervoltage (OUTA goes low when voltage falls below VTH−), and INB− detects overvoltage (OUTB changes state when voltage exceeds VTH+). Both comparators operate independently with shared 1.245V internal reference, enabling single-chip supervision of supply rails without external components.
What is the maximum voltage the OUTA and OUTB pins can tolerate?
Both OUTA and OUTB pins on the MAX16011TAC+T are rated to −0.3V to +80V, exceeding the 72V VCC maximum. This allows direct connection of external pull-up resistors to 48V, 60V, or even 72V system rails without level-shifting circuitry - a key advantage for telecom and industrial applications where fault signals must interface with higher-voltage control logic.
How does the LOGIC pin affect MAX16011TAC+T operation?
The LOGIC pin on MAX16011TAC+T selects the active state of OUTB: when LOGIC = GND, OUTB is active-low (goes low during overvoltage); when LOGIC = VCC, OUTB is active-high (goes high during overvoltage). This flexibility enables direct compatibility with either active-low reset controllers or active-high fault interrupt inputs in host systems.
Is MAX16011TAC+T pin-compatible with other devices in the MAX16010–MAX16014 family?
MAX16011TAC+T shares the same 8-pin TDFN package and pinout with MAX16010TAC+T, but differs from MAX16012–MAX16014 (6-pin packages) and has distinct EN/LOGIC pin assignments. Pin compatibility is limited to MAX16010 variants only; substitution with MAX16012/MAX16013/MAX16014 requires PCB redesign due to different pin count, function mapping, and package size.
MAX16011TAC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- <1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (3x3)
MAX16011TAC+T FAQ
1.How can I place an order for MAX16011TAC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16011TAC+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 MAX16011TAC+T reliable?
The price and inventory of MAX16011TAC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16011TAC+T is usually 5 days.
3.What payment methods are accepted for MAX16011TAC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16011TAC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16011TAC+T?
MAX16011TAC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16011TAC+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 MAX16011TAC+T?
For technical support, including MAX16011TAC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16011TAC+T requirements.
6.How does Aetrix verify that MAX16011TAC+T is sourced from the original manufacturer or authorized distributors?
All MAX16011TAC+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 MAX16011TAC+T meets industry standards.
7.What is the process for return or replacement of MAX16011TAC+T?
All MAX16011TAC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16011TAC+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 MAX16011TAC+T part is unused and in its original packaging.
Return procedure for MAX16011TAC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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