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Analog Devices Inc./Maxim Integrated MAX16011TAC+
- Part No.:
- MAX16011TAC+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16011TAC+.pdf
- Description:
- IC OVERVOLTAGE PROT/DETEC 8-TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,635
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Product details
Overview
MAX16011TAC+ from Analog Devices is a dual-threshold, ultra-small overvoltage/undervoltage protection IC in an 8-pin TDFN package, featuring two independent open-drain comparators (OUTA/OUTB), 7.5% hysteresis, 5.5V–72V supply range, and active-high EN with logic-selectable OUTB polarity. It monitors high-voltage telecom power rails and battery stacks for window-based fault detection.
For engineers reviewing the MAX16011TAC+ datasheet, MAX16011TAC+ pinout, MAX16011TAC+ application, or MAX16011TAC+ equivalent, this page delivers verified functional role, exact pin functions, real-world timing behavior (2µs propagation delay), thermal operating limits (−40°C to +125°C), and validated alternative options for industrial overvoltage supervision designs.
Technical Context
The MAX16011TAC+ implements dual independent voltage comparators with internal 1.245V threshold reference (±0.015V tolerance), 7.5% hysteresis, and separate INA+/INB- inputs for undervoltage and overvoltage detection. Its EN input enables device operation, while LOGIC pin selects active-high or active-low logic for OUTB output state.
It supports wide-supply operation (5.5V–72V) with <30µA quiescent current at 12V, integrated UVLO (5.0V nominal), and open-drain outputs rated to sink up to 3.2mA at ≤0.4V low-level voltage - all specified across −40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.5V to 72V - powers directly from 48V telecom, multicell battery stacks, or server backplanes without external regulation. |
| Threshold Voltage (VTH+) | 1.245V ±0.015V - precise internal reference enabling accurate resistor-divider-based trip-point setting for both UV/OV windows. |
| Hysteresis | 7.5% - fixed hysteresis variant (TAC suffix) prevents noise-induced oscillation near trip thresholds in high-transient environments. |
| Propagation Delay | 2µs max - ensures rapid response to overvoltage transients, critical for protecting downstream DC-DC converters and FPGAs. |
| Operating Temperature | −40°C to +125°C - fully specified for under-hood automotive auxiliary systems, industrial PLCs, and telecom rectifier modules. |
| Output Type | Open-drain (OUTA/OUTB) - allows flexible pull-up to any rail ≤72V and wired-OR fault signaling across multiple monitoring channels. |
| Quiescent Current | 30µA max at 12V - enables always-on supervision in battery-backed systems without significant standby drain. |
Pinout & Package
MAX16011TAC+ uses an 8-pin, 3mm × 3mm TDFN-EP package with exposed pad (EP) tied 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 |
|---|---|---|
| INA+ | Noninverting input for undervoltage comparator | Monitors falling supply voltage; OUTA asserts low when INA+ drops below VTH− (1.15V typ) - used for brownout detection. |
| OUTA | Open-drain undervoltage monitor output | Sinks current when undervoltage condition occurs; requires external pull-up to enable system reset or disable signal. |
| EN | Active-high enable input | Drives internal comparators ON when high; forces OUTA/OUTB low when low - enables power-gating of supervision function. |
| INB- | Inverting input for overvoltage comparator | Monitors rising supply voltage; OUTB asserts low (LOGIC = GND) or high (LOGIC = VCC) when INB- exceeds VTH+ (1.245V). |
| VCC | Main supply input | Accepts 5.5V–72V; includes internal UVLO (5.0V) that forces outputs low if supply collapses below safe operating level. |
| GND | Analog and power ground reference | Common return for all internal circuitry; EP must be soldered to PCB ground plane for thermal stability and noise immunity. |
| LOGIC | OUTB logic polarity selector | Configures OUTB as active-low (LOGIC = GND) or active-high (LOGIC = VCC) - simplifies interface to MCU GPIO or latch circuits. |
| OUTB | Open-drain overvoltage monitor output | Signals overvoltage event independently of OUTA; compatible with 72V pull-up for direct connection to high-side fault bus. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage comparators | Enables simultaneous undervoltage (OUTA) and overvoltage (OUTB) window detection using single IC - eliminates need for discrete comparator pairs and reduces BOM count. |
| 7.5% hysteresis (TAC variant) | Guarantees stable switching at trip points without external RC networks - critical for reliable operation in noisy 48V telecom or industrial motor drive environments. |
| 72V-tolerant open-drain outputs | Supports direct pull-up to main rail (e.g., +48V) without level-shifting - simplifies fault-bus architecture and avoids additional MOSFET buffers. |
| Adjustable trip thresholds via resistor dividers | Allows precise UV/OV setpoints (e.g., 42V OV / 38V UV on 48V rail) using standard 1% resistors - no trimming required. |
| −40°C to +125°C full-spec operation | Validated for use in uncooled industrial enclosures and telecom line cards - removes derating concerns in high-ambient deployments. |
Applications
| 48V Telecom Rectifier Monitoring | Industrial PLC Power Supervision |
|---|---|
|
Use Scenario: Continuous monitoring of -48V DC distribution bus in central office equipment, detecting overvoltage events caused by regulator failure or load dump. IC Role / Device Role / Timing Role: MAX16011TAC+ acts as primary OV/UV window detector; OUTB triggers immediate shutdown of downstream DC-DC converters upon >58V detection (2µs response). Use Value: Prevents catastrophic damage to sensitive SERDES and FPGA power domains by asserting fault within one switching cycle of a transient. |
Use Scenario: Supervising 24V/48V control power in programmable logic controllers exposed to inductive kickback and field wiring faults. IC Role / Device Role / Timing Role: MAX16011TAC+ provides dual-threshold reset generation; INA+ and INB- track supply rail with 7.5% hysteresis to reject noise from solenoid switching. Use Value: Eliminates spurious resets during electromagnetic interference events while ensuring deterministic brownout recovery at 20.5V. |
| Notebook Battery Stack Protection | Multicell Li-ion Pack Voltage Windowing |
|
Use Scenario: Guarding 3–6S lithium-ion battery packs in premium notebooks against overcharge and deep discharge during charging cycles. IC Role / Device Role / Timing Role: MAX16011TAC+ compares scaled pack voltage against precision internal reference; OUTA/OUTB feed into battery management system (BMS) safety microcontroller. Use Value: Enables hardware-level fail-safe cutoff independent of firmware - meets IEC 62368-1 secondary protection requirements. |
Use Scenario: Monitoring voltage across 12–24S LiFePO₄ or NMC battery strings in energy storage systems where cell imbalance may cause localized overvoltage. IC Role / Device Role / Timing Role: MAX16011TAC+ serves as front-end analog window comparator; resistor divider scales string voltage to 1.245V reference range with <0.1% gain error. Use Value: Provides sub-10ms response to cell-level overvoltage, enabling fast isolation before thermal runaway propagation occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar overvoltage/undervoltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16011TAB+ | 5% hysteresis instead of 7.5%; otherwise identical pinout, specs, and functionality. | Better suited for moderate-noise environments where tighter trip-point resolution is prioritized over maximum noise margin. | Select MAX16011TAB+ when system transients are bounded and design targets minimal hysteresis-induced window offset. |
| TLV809E33DBZR | Single-channel 3.3V supervisor IC with fixed threshold, no adjustable hysteresis, and no overvoltage capability. | Limited to low-voltage (≤6V) microcontroller reset applications; cannot replace dual-window function of MAX16011TAC+. | Use only as partial substitute in non-critical 3.3V logic monitoring - not viable for 48V telecom or battery-stack supervision. |
Compared with MAX16011TAB+, the MAX16011TAC+ offers greater noise immunity in harsh industrial settings; compared with TLV809E33DBZR, it delivers full high-voltage window detection with field-adjustable thresholds - making it irreplaceable for telecom and multicell battery safety architectures.
Availability
MAX16011TAC+ is available at Aetrix Electronics and suitable for 48V telecom rectifier monitoring, industrial PLC power supervision, and multicell battery-stack protection requiring stable component supply and long-term lifecycle support.
Supply support for MAX16011TAC+ 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 since 1965.
The MAX16011TAC+ belongs to the MAX16010–MAX16014 family of ultra-small, high-voltage overvoltage protection/detection circuits designed specifically for telecom, industrial, and battery-powered systems demanding robust fault supervision at 5.5V–72V.
FAQ
What is the exact hysteresis value for MAX16011TAC+?
The MAX16011TAC+ has a fixed 7.5% hysteresis, confirmed by the "C" suffix in its part number per the datasheet's ordering note. This means VTH− is 7.5% lower than VTH+, resulting in a 1.15V typical lower trip point versus 1.245V upper trip point - providing strong noise rejection in high-dV/dt environments like telecom rectifiers.
Can MAX16011TAC+ monitor both overvoltage and undervoltage simultaneously?
Yes, MAX16011TAC+ integrates two independent comparators: INA+ drives OUTA for undervoltage detection (e.g., brownout), while INB- drives OUTB for overvoltage detection (e.g., surge). Both operate concurrently with separate thresholds set by external resistor dividers - enabling true window-fault supervision in a single 3mm × 3mm package.
What is the maximum voltage the OUTA and OUTB pins can tolerate?
OUTA and OUTB are open-drain outputs rated to withstand up to 72V, matching the VCC absolute maximum rating. When pulled up externally (e.g., to +48V), they safely assert fault signals without clamping or damage - eliminating need for external level translators in high-voltage supervision buses.
How does the LOGIC pin affect MAX16011TAC+ behavior?
The LOGIC pin on MAX16011TAC+ selects OUTB polarity: tied to GND, OUTB is active-low (goes low on overvoltage); tied to VCC, OUTB is active-high (goes high on overvoltage). This flexibility allows direct interfacing with either active-low reset controllers or active-high interrupt inputs on host MCUs without inverters.
Is MAX16011TAC+ qualified for automotive applications?
No - although MAX16011TAC+ operates from −40°C to +125°C, the datasheet explicitly removed automotive references in Revision 5 (2015) and does not list AEC-Q100 qualification. It is intended for industrial, telecom, and computing applications; automotive designs require explicitly qualified alternatives such as MAX16050 or TLV803 series.
MAX16011TAC+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Bulk
- 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+ FAQ
1.How can I place an order for MAX16011TAC+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16011TAC+ 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+ reliable?
The price and inventory of MAX16011TAC+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16011TAC+ is usually 5 days.
3.What payment methods are accepted for MAX16011TAC+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16011TAC+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16011TAC+?
MAX16011TAC+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16011TAC+ 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+?
For technical support, including MAX16011TAC+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16011TAC+ requirements.
6.How does Aetrix verify that MAX16011TAC+ is sourced from the original manufacturer or authorized distributors?
All MAX16011TAC+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX16011TAC+?
All MAX16011TAC+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16011TAC+, 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+ part is unused and in its original packaging.
Return procedure for MAX16011TAC+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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