Analog Devices Inc./Maxim Integrated MAX16011TAB+

Overview

MAX16011TAB+ 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 input, and LOGIC-selectable OUTB polarity-designed for telecom power supervision in 48V server backplanes.

For engineers reviewing the MAX16011TAB+ datasheet, MAX16011TAB+ pinout, MAX16011TAB+ application, or MAX16011TAB+ equivalent, key selection criteria include hysteresis (5%), UVLO threshold (5.0V), propagation delay (2μs max), -40°C to +125°C operation, and compatibility with high-transient industrial 48V systems requiring functional safety support.

Technical Context

The MAX16011TAB+ implements two independent voltage comparators with internal 1.245V reference and 5% hysteresis, enabling precise window detection of monitored rails. Its OUTA asserts low on undervoltage (INA+ < VTH−), while OUTB logic is configurable via LOGIC pin to assert low or high on overvoltage (INB− > VTH+).

It integrates undervoltage lockout (VUVLO = 5.0V) and supports fast response with 2μs max propagation delay. The device uses BiCMOS process, draws only 25–40µA supply current across 12V–48V VCC, and drives open-drain outputs capable of sinking 3.2mA at VOL ≤ 0.4V.

Key Specifications

Pinout & Package

MAX16011TAB+ is housed in 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.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar overvoltage/undervoltage detection applications.

Compared with MAX16010TAB+, MAX16011TAB+ offers simplified enable control and configurable OUTB polarity at identical accuracy and speed; compared with TLV809E33DBZR, it delivers full 48V–72V system-level protection with dual-threshold flexibility and industrial temperature range.

Availability

MAX16011TAB+ is available at Aetrix Electronics and suitable for 48V telecom power supervision, industrial PLC backplane monitoring, and notebook battery stack protection requiring stable component supply across extended temperature and high-voltage stress conditions.

Supply support for MAX16011TAB+ 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 precision instrumentation, industrial automation, and communications markets.

The MAX16010–MAX16014 family was designed specifically for ultra-small, low-power overvoltage protection in high-transient 48V–72V systems such as telecom infrastructure, industrial controls, and multicell battery-powered equipment.

FAQ

What is the hysteresis value specified for MAX16011TAB+?

The MAX16011TAB+ is the "B" variant in the MAX16011 series, specifying 5.0% hysteresis between VTH+ and VTH− thresholds. This is confirmed in the Electrical Characteristics table under "Threshold-Voltage Hysteresis" and applies across the full -40°C to +125°C operating range. The hysteresis improves noise immunity for reliable operation in electrically noisy telecom and industrial environments where the MAX16011TAB+ is deployed.

Does MAX16011TAB+ support 72V-tolerant outputs?

Yes, MAX16011TAB+ features open-drain OUTA and OUTB outputs rated to withstand up to 72V - explicitly stated in the Absolute Maximum Ratings table (OUTA/OUTB: -0.3V to +80V). This allows direct connection to 48V or 60V auxiliary rails without level shifters, making MAX16011TAB+ suitable for high-side fault signaling in telecom power systems where output voltage may exceed the IC's own VCC.

How does the LOGIC pin affect MAX16011TAB+ behavior?

The LOGIC pin on MAX16011TAB+ selects the active state of OUTB: when LOGIC = GND, OUTB is active-low (goes low on overvoltage); when LOGIC = VCC, OUTB is active-high (goes high on overvoltage). This configurability is documented in Table 2 (MAX16011 Output Logic) and enables MAX16011TAB+ to interface directly with either active-low interrupt controllers or active-high enable inputs without external inverters.

What is the propagation delay specification for MAX16011TAB+?

The MAX16011TAB+ has a maximum propagation delay of 2μs, measured from input transition (IN_/SET rising/falling across VTH ±100mV) to corresponding output assertion. This value is guaranteed across -40°C to +125°C and is critical for protecting fast-switching loads like FPGAs or high-speed ADCs. The 2μs delay ensures MAX16011TAB+ responds before downstream components experience overvoltage stress.

Is MAX16011TAB+ RoHS-compliant and lead-free?

Yes, MAX16011TAB+ is RoHS-compliant and lead-free. The "+" suffix in the part number denotes lead(Pb)-free/RoHS-compliant packaging per the Ordering Information table footnote ("*Replace -T with +T for lead(Pb)-free/RoHS-compliant packages"). The device uses a TDFN-EP package with matte tin finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements.