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Analog Devices Inc./Maxim Integrated MAX16011TAA+T
- Part No.:
- MAX16011TAA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16011TAA+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,413
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Product details
Overview
MAX16011TAA+T from Analog Devices is a dual-comparator overvoltage/undervoltage protection IC in an 8-pin TDFN package, operating from 5.5V to 72V supply. It features independent INA+/INB- inputs, open-drain OUTA/OUTB outputs rated to 72V, active-high EN, and LOGIC-selectable OUTB polarity - used for window monitoring in telecom power rails and multicell battery stacks.
For engineers reviewing the MAX16011TAA+T datasheet, MAX16011TAA+T pinout, MAX16011TAA+T application, or MAX16011TAA+T equivalent, key selection considerations include its 0.5% hysteresis threshold (VTH+ = 1.245V typ), 2µs max propagation delay, -40°C to +125°C operation, UVLO at 5.0V, and compatibility with high-transient 48V systems requiring functional safety support.
Technical Context
The MAX16011TAA+T implements two independent voltage comparators with internal 1.245V reference and 0.5% hysteresis (TAA suffix), enabling precise window detection. Its OUTA asserts low on undervoltage (INA+ < VTH−), while OUTB asserts low or high depending on LOGIC pin state during overvoltage (INB− > VTH+).
It integrates UVLO (5.0V threshold), supports 72V-tolerant open-drain outputs with ≤0.4V VOL at 3.2mA, and draws only 25–40µA supply current across 12V–48V VCC. The device uses BiCMOS process and operates fully specified from −40°C to +125°C with 3mm × 3mm TDFN-EP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.5V to 72V - enables direct use in 48V telecom, server, and 12–60V battery-stack systems without external regulators. |
| Threshold Voltage (VTH+) | 1.245V (typ) - sets precise overvoltage trip point via external resistor divider on INB−, referenced to internal bandgap. |
| Hysteresis | 0.5% - provides noise immunity against transients near trip thresholds; prevents oscillation in noisy industrial environments. |
| Propagation Delay | 2µs (max) - ensures rapid fault response for protecting downstream DC-DC converters and FPGAs from overvoltage events. |
| Output Drive Capability | Open-drain, 72V-tolerant, ≤0.4V VOL @ 3.2mA - allows direct interfacing with 3.3V/5V logic or higher-voltage loads using external pull-ups. |
| Supply Current | 25–40µA (VCC = 12–48V) - enables always-on monitoring in battery-backed or energy-sensitive applications. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive auxiliary modules and industrial control cabinets. |
Pinout & Package
MAX16011TAA+T is housed in a thermally enhanced 3mm × 3mm, 8-pin TDFN-EP package (package code T833-2) with exposed pad soldered to PCB ground for improved thermal performance and EMI reduction.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INA+ | Noninverting input for undervoltage comparator; monitors rising/falling rail voltage to trigger OUTA low when below VTH−. |
| 2 | OUTA | Open-drain undervoltage output; pulled low when INA+ < VTH−; requires external pull-up to VCC or logic rail. |
| 3 | EN | Active-high enable input; drives internal comparators ON when high; forces OUTA/OUTB low when low. |
| 4 | OUTB | Open-drain overvoltage output; polarity (low/high assert) selected by LOGIC pin; tolerates up to 72V. |
| 5 | INB− | Inverting input for overvoltage comparator; connected to resistor divider to set VTRIPHIGH trip point. |
| 6 | VCC | Main supply input (5.5–72V); powers internal regulator and bias circuits; requires local 0.1µF bypass to GND. |
| 7 | GND | Analog and power ground reference; must be low-impedance connection to minimize noise coupling. |
| 8 | LOGIC | OUTB logic polarity selector; tied to GND for active-low OUTB, or VCC for active-high OUTB behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent comparators | Enables simultaneous undervoltage (OUTA) and overvoltage (OUTB) monitoring on separate inputs - eliminates need for external op-amps or discrete comparators. |
| 0.5% hysteresis (TAA variant) | Provides tight, stable window detection with minimal threshold drift across temperature; reduces false triggering in high-noise telecom backplanes. |
| 72V-tolerant open-drain outputs | Allows direct interface with 48V system rails or higher-voltage supervision buses without level-shifting components. |
| UVLO with 5.0V threshold | Ensures reliable startup and shutdown sequencing in battery-powered equipment by disabling outputs until VCC exceeds safe operating range. |
| LOGIC-configurable OUTB polarity | Permits flexible system integration: active-low for reset assertion or active-high for interrupt signaling - no external inverters required. |
Applications
| 48V Telecom Power Supervision | Industrial PLC Input Module |
|---|---|
Use Scenario: Monitoring primary 48V DC distribution rail in telecom shelf systems for overvoltage (>57V) and undervoltage (<40V) faults. IC Role / Device Role / Timing Role: Dual-threshold window detector providing independent OUTA (UV) and OUTB (OV) signals to FPGA-based power management unit. Use Value: Prevents damage to sensitive SERDES and PHY ICs during lightning-induced surges or rectifier failures, with 2µs response limiting fault energy. |
Use Scenario: Protecting analog input front-end of programmable logic controller against field-wiring faults and reverse-polarity connections. IC Role / Device Role / Timing Role: Undervoltage lockout and overvoltage clamp supervisor ensuring ADC reference stability and isolating downstream circuitry during brownouts or surge events. Use Value: Maintains measurement integrity by disabling acquisition during out-of-spec supply conditions, eliminating erroneous sensor readings. |
| Notebook Battery Stack Management | Multicell Li-ion Pack Protection |
Use Scenario: Supervising series-connected 12S Li-ion battery pack (up to 50.4V full charge) for cell imbalance-induced overvoltage and cold-temperature undervoltage. IC Role / Device Role / Timing Role: High-side voltage monitor interfaced with fuel gauge MCU via open-drain outputs; LOGIC pin configured for interrupt-driven OV reporting. Use Value: Enables early-stage cell-level overvoltage detection before BMS hardware cutoff, extending cycle life and preventing thermal runaway initiation. |
Use Scenario: Real-time monitoring of 16-cell lead-acid or LFP battery bank (nominal 48V) in renewable energy storage systems during charge/discharge cycles. IC Role / Device Role / Timing Role: Window comparator feeding dedicated protection microcontroller; OUTA/OUTB drive optocouplers for galvanically isolated fault signaling. Use Value: Delivers deterministic fault response within 2µs to disconnect charging source or load relay, meeting IEC 62485-2 functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar overvoltage/undervoltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16010TAA+T | Complementary EN/EN enable inputs instead of single EN; identical comparator architecture, thresholds, and hysteresis. | Preferred where system-level enable logic requires both active-high and active-low control signals simultaneously. | Select MAX16010TAA+T only if complementary enable functionality is required; otherwise MAX16011TAA+T offers simpler single-pin enable. |
| TLV809E33DBZR | Single-channel 3.3V reset IC with fixed threshold; no adjustable hysteresis, no 72V tolerance, no dual-window capability. | Limited to low-voltage (≤6V) microcontroller reset applications; unsuitable for 48V monitoring or battery stack supervision. | Use TLV809E33DBZR only for basic 3.3V supply monitoring; MAX16011TAA+T is required for wide-range, dual-threshold, high-voltage systems. |
Compared with MAX16010TAA+T, the MAX16011TAA+T simplifies enable control with one pin instead of two, while retaining identical precision and speed; versus TLV809E33DBZR, it delivers 22× wider supply range, dual independent thresholds, and 72V output tolerance - making it uniquely suitable for industrial and telecom power-rail supervision.
Availability
MAX16011TAA+T is available at Aetrix Electronics and suitable for 48V telecom power systems, industrial PLC input modules, and multicell battery-stack-powered equipment requiring stable component supply across extended temperature and high-voltage stress conditions.
Supply support for MAX16011TAA+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, communications, automotive, and healthcare markets since 1965.
The MAX16011TAA+T belongs to the MAX16010–MAX16014 family of ultra-small, low-power overvoltage-protection circuits designed specifically for high-transient, high-voltage systems including telecom infrastructure, industrial controls, and battery-powered equipment.
FAQ
What is the exact hysteresis value for MAX16011TAA+T?
The MAX16011TAA+T has a guaranteed 0.5% hysteresis (VTH+ − VTH−)/VTH+, corresponding to approximately 12.5mV at the 1.245V nominal threshold. This value is factory-trimmed and specified over −40°C to +125°C per the datasheet's Electrical Characteristics table. The "TAA" suffix explicitly denotes the 0.5% hysteresis variant of the MAX16011TAA+T.
Can MAX16011TAA+T directly drive a MOSFET gate?
No, the MAX16011TAA+T does not integrate MOSFET gate drivers. Its OUTA and OUTB pins are open-drain comparators rated for 72V but limited to 3.2mA sink current - insufficient for direct gate charging. For MOSFET control, external driver stages (e.g., small-signal NPN/PNP pairs or dedicated gate drivers) must be used. In contrast, MAX16013/MAX16014 variants include integrated GATE1/GATE2 drivers.
What does the "+T" suffix mean in MAX16011TAA+T?
The "+T" suffix in MAX16011TAA+T indicates a lead(Pb)-free and RoHS-compliant version in tape-and-reel packaging. It reflects Analog Devices' standard environmental compliance designation, confirming the device meets EU RoHS Directive 2011/65/EU and has no intentionally added lead. The underlying silicon and electrical specifications are identical to non-"+T" versions.
How is the overvoltage threshold set on MAX16011TAA+T?
The overvoltage threshold is set externally using a resistor divider from VCC to GND, with the midpoint connected to the INB− pin. The internal 1.245V reference (VTH+) defines the trip point: VTRIPHIGH = 1.245V × (R1 + R2)/R2. The MAX16011TAA+T does not include an internal SET pin like MAX16013/MAX16014 - threshold adjustment relies entirely on passive resistor selection.
Is MAX16011TAA+T suitable for automotive applications?
While the MAX16011TAA+T is qualified for −40°C to +125°C operation and features robust UVLO and transient tolerance, it is not AEC-Q100 qualified and was not designed for automotive powertrain or ADAS systems. Its datasheet omits automotive-specific testing (e.g., ISO 7637-2 pulses) and references industrial/telecom use cases. For automotive body electronics, AEC-Q100-qualified alternatives like MAX20428 should be considered.
MAX16011TAA+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)
MAX16011TAA+T FAQ
1.How can I place an order for MAX16011TAA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16011TAA+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 MAX16011TAA+T reliable?
The price and inventory of MAX16011TAA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16011TAA+T is usually 5 days.
3.What payment methods are accepted for MAX16011TAA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16011TAA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16011TAA+T?
MAX16011TAA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16011TAA+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 MAX16011TAA+T?
For technical support, including MAX16011TAA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16011TAA+T requirements.
6.How does Aetrix verify that MAX16011TAA+T is sourced from the original manufacturer or authorized distributors?
All MAX16011TAA+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 MAX16011TAA+T meets industry standards.
7.What is the process for return or replacement of MAX16011TAA+T?
All MAX16011TAA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16011TAA+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 MAX16011TAA+T part is unused and in its original packaging.
Return procedure for MAX16011TAA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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