My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4211FETE-T
- Part No.:
- MAX4211FETE-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4211FETE-T.pdf
- Description:
- IC CURRENT MONITOR 0.5% 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,678
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4211FETE-T from Maxim Integrated is a full-featured high-side current and power monitor IC with integrated 1.21V bandgap reference, two open-drain comparators, and 40.96V/V current-sense gain. It delivers analog outputs proportional to load current (IOUT) and power (POUT), supports 4V–28V common-mode input range, operates from +2.7V to +5.5V supply, and targets battery-powered systems requiring real-time overload detection.
For engineers reviewing the MAX4211FETE-T datasheet, MAX4211FETE-T pinout, MAX4211FETE-T application, or MAX4211FETE-T equivalent, this device is selected for high-accuracy, high-side sensing in smart battery packs, overpower circuit breakers, and short-circuit protection where ground-path integrity and comparator-driven fault response are critical.
Technical Context
The MAX4211FETE-T integrates a precision high-side current-sense amplifier, a stable 1.21V reference, and two independent comparators with 0.5mV offset and 5mV hysteresis. Its POUT output multiplies VSENSE × VIN (not VRS+) with 40.96V/V gain, enabling direct power-level detection without external multipliers.
It uses an internal 25:1 resistor-divider network (per MAX4211A/B/C/F variant designation), supports latch-enable (LE) and inhibit (INHIBIT) logic control, and features open-drain comparator outputs rated to 28V-enabling direct interface with high-side MOSFET gate drivers in circuit-breaker applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current-Sense Gain | 40.96V/V - sets IOUT = 40.96 × VSENSE, enabling precise current measurement at low sense voltages (e.g., 100mV full-scale) |
| Power-Sense Gain | 40.96 1/V - defines POUT = 40.96 × VSENSE × VIN, supporting direct analog power computation with ±1.5% accuracy |
| Common-Mode Input Range | +4V to +28V - allows monitoring of high-side loads referenced to battery or bus voltages up to 28V without level-shifting |
| Supply Voltage Range | +2.7V to +5.5V - compatible with single-supply 3.3V or 5V microcontroller domains and low-power battery systems |
| Reference Output | 1.21V ±10mV - provides stable, temperature-compensated voltage for comparator thresholds and calibration references |
| Comparator Outputs | Open-drain, 28V-tolerant - enables wired-OR fault signaling and direct drive of external high-side switches or optocouplers |
| Bandwidth | 220kHz - supports fast transient detection for overcurrent/overpower events with sub-10µs settling time |
Pinout & Package
MAX4211FETE-T is housed in a 4mm × 4mm, 16-pin thin QFN package with exposed paddle (EP) for thermal performance. Pin numbering follows standard QFN convention with pin 1 marked by dot or chamfered corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Primary return path for all analog and digital circuitry; must be connected to low-impedance system ground plane |
| VCC | Power supply input | +2.7V to +5.5V supply; requires local 0.1µF ceramic bypass capacitor to GND |
| RS+ | High-side sense resistor input | Connects to positive terminal of external sense resistor; supports up to +28V common-mode voltage |
| RS- | Load-side sense resistor input | Connects to load side of sense resistor; differential input with ±5V max rating relative to RS+ |
| IOUT | Current-proportional output | Analog voltage output = 40.96 × VSENSE; rail-to-rail capable with 0.5Ω output impedance |
| POUT | Power-proportional output | Analog voltage output = 40.96 × VSENSE × VIN; used for real-time power-level detection |
| REF | 1.21V reference output | Stable, buffered bandgap reference; can source/sink up to 100µA with <15mV total error |
| CIN1+, CIN1− | Comparator 1 inputs | Differential inputs referenced to REF; support programmable overcurrent threshold via external resistors |
| CIN2+, CIN2− | Comparator 2 inputs | Differential inputs referenced to REF; enable independent overpower or overvoltage detection |
| COUT1, COUT2 | Comparator open-drain outputs | Active-low fault signals; require external pull-up to ≤28V; support latch mode via LE pin |
| LE | Latch-enable control | Active-high logic input; when asserted, latches comparator outputs until cleared by INHIBIT or power cycle |
| INHIBIT | Output disable control | Active-high logic input; disables IOUT, POUT, and REF outputs to reduce quiescent current during standby |
| N.C. | No connection | Pins 12 and 15 are unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Real-time current and power monitoring | Simultaneous analog outputs IOUT and POUT enable closed-loop power management without ADC or firmware overhead |
| ±1.5% max current-sense accuracy | Ensures reliable trip-point setting for overcurrent protection across -40°C to +85°C without calibration |
| Two uncommitted comparators | Enable independent, configurable fault detection (e.g., CIN1 for overcurrent, CIN2 for overpower) with shared REF |
| 1.21V reference output | Provides stable, low-drift voltage for accurate comparator thresholds and external sensor biasing |
| 220kHz bandwidth | Supports rapid response to load transients-critical for protecting Li-ion batteries and motor drives |
| 28V-tolerant comparator outputs | Eliminates need for level-shifters when driving high-side N-channel MOSFET gates in solid-state breakers |
Applications
| Overpower Circuit Breaker | Smart Battery Pack |
|---|---|
Use Scenario: Monitoring power delivered to a DC load (e.g., server PSU output) and triggering shutdown upon sustained >120% rated power. IC Role / Device Role / Timing Role: MAX4211FETE-T measures instantaneous power via POUT and drives COUT1 to latch a high-side MOSFET gate driver on overthreshold condition. Use Value: Enables hardware-fast (<10µs propagation delay) circuit breaking without MCU intervention, improving safety compliance. | Use Scenario: Real-time current/power tracking in a multi-cell Li-ion pack with integrated protection IC. IC Role / Device Role / Timing Role: MAX4211FETE-T senses cell-string current (via RS+/RS−) and computes pack power (POUT), feeding data to fuel gauge and enabling dynamic charge rate limiting. Use Value: Delivers ±1.5% power accuracy across temperature-critical for state-of-charge estimation and thermal runaway prevention. |
| Short-Circuit Protection | Power-Supply Display |
Use Scenario: Detecting sub-millisecond short circuits on a 12V automotive accessory rail. IC Role / Device Role / Timing Role: MAX4211FETE-T's 220kHz bandwidth and 10µs IOUT settling time allow detection of 50A+ surges; COUT2 asserts within 4µs to disable upstream FET. Use Value: Prevents fuse blowout and wiring damage by reacting faster than mechanical or thermal protection schemes. | Use Scenario: Analog front-end for a bench power supply's digital display showing real-time output current and power. IC Role / Device Role / Timing Role: MAX4211FETE-T provides calibrated IOUT and POUT voltages directly to ADC inputs of display controller MCU. Use Value: Eliminates need for separate current shunt amplifiers and multipliers-reducing BOM count and layout area by >3 components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4211DET | Same 16-pin TQFN package and pinout; uses external resistor-divider network (no internal 25:1 divider); 16.67V/V current gain | Requires external R-dividers for VIN scaling; better suited for designs needing flexible gain configuration or higher VIN full-scale range | Select MAX4211DET when design requires adjustable power gain or compatibility with existing external divider networks |
| INA226AIDGST | 36V, 16-bit delta-sigma ADC with integrated 2.95V reference; I²C interface; no comparators; 10µA quiescent current | Digital output only; requires host processor for threshold evaluation; lacks hardware latch and 28V-tolerant outputs | Select INA226AIDGST when system already includes I²C infrastructure and software-based fault handling is acceptable |
Compared with MAX4211FETE-T, MAX4211DET offers design flexibility at the cost of added external components, while INA226AIDGST trades autonomous hardware protection for higher resolution and lower power-but requires firmware implementation of safety logic.
Availability
MAX4211FETE-T is available at Aetrix Electronics and suitable for smart battery packs, overpower circuit breakers, and short-circuit protection systems requiring stable component supply, guaranteed long-term availability, and full traceability.
Supply support for MAX4211FETE-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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and computing applications.
The MAX4211 family delivers integrated high-side current and power monitoring with comparator-based fault detection-designed specifically for battery management, power system protection, and energy metering where analog real-time response is essential.
FAQ
What is the function of the LE (Latch-Enable) pin on the MAX4211FETE-T?
The LE pin on the MAX4211FETE-T controls latching behavior of the two comparators. When LE is driven high, comparator outputs (COUT1/COUT2) become latched upon threshold crossing and remain asserted until cleared by either the INHIBIT pin or a power cycle. This ensures fault conditions are captured even during brief transients or MCU latency, making it critical for safety-critical applications like circuit breakers. The MAX4211FETE-T implements this function using internal SR-latch circuitry tied to comparator outputs.
Does the MAX4211FETE-T require external resistors for its reference or comparator functions?
No, the MAX4211FETE-T does not require external resistors for its 1.21V reference (REF pin is fully buffered and internally generated) or basic comparator operation. However, external resistor dividers are needed on CIN1+/CIN1− and CIN2+/CIN2− to set custom overcurrent or overpower thresholds relative to the internal 1.21V reference. The MAX4211FETE-T variant includes an internal 25:1 resistor-divider for VIN scaling, eliminating external components required by MAX4211D/E variants.
What is the maximum common-mode voltage the MAX4211FETE-T can handle at the RS+ pin?
The MAX4211FETE-T supports a guaranteed common-mode input voltage range of +4V to +28V at the RS+ pin, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. This allows direct monitoring of high-side loads powered from 12V, 24V, or 28V rails without attenuation or level-shifting circuitry. Operation beyond +28V risks permanent damage, and the device is not rated for negative common-mode voltages below -0.3V.
How does the MAX4211FETE-T achieve ±1.5% current-sense accuracy over temperature?
The MAX4211FETE-T achieves ±1.5% current-sense accuracy over -40°C to +85°C through laser-trimmed gain resistors, matched input transistor pairs, and curvature-corrected bandgap reference architecture. Its current-sense amplifier gain (40.96V/V) is characterized and tested across temperature, and total error includes contributions from offset, gain drift, and CMRR degradation-all bounded within the ±1.5% limit under specified conditions (VSENSE = 20mV to 100mV, VRS+ = 25V). This accuracy is confirmed in production test and documented in the Electrical Characteristics table for MAX4211C/F variants.
Can the MAX4211FETE-T be used with a 3.3V supply while monitoring a 24V load?
Yes, the MAX4211FETE-T can operate from a 3.3V supply (within its +2.7V to +5.5V VCC range) while monitoring a 24V load via RS+/RS−, because its high-side current-sense architecture isolates the analog signal path from the supply domain. The 24V common-mode voltage appears only at RS+, which is rated to +28V, and does not affect VCC. All outputs (IOUT, POUT, REF, COUT1/COUT2) remain functional at 3.3V supply, though comparator pull-up voltage may be set independently up to 28V. This makes the MAX4211FETE-T ideal for low-voltage control logic interfacing with high-voltage power stages.
MAX4211FETE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Current Monitor
- Sensing Method:
- High-Side
- Accuracy:
- ±0.5%
- Voltage - Input:
- 4V ~ 28V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (4x4)
MAX4211FETE-T FAQ
1.How can I place an order for MAX4211FETE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4211FETE-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 MAX4211FETE-T reliable?
The price and inventory of MAX4211FETE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4211FETE-T is usually 5 days.
3.What payment methods are accepted for MAX4211FETE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4211FETE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4211FETE-T?
MAX4211FETE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4211FETE-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 MAX4211FETE-T?
For technical support, including MAX4211FETE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4211FETE-T requirements.
6.How does Aetrix verify that MAX4211FETE-T is sourced from the original manufacturer or authorized distributors?
All MAX4211FETE-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 MAX4211FETE-T meets industry standards.
7.What is the process for return or replacement of MAX4211FETE-T?
All MAX4211FETE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4211FETE-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 MAX4211FETE-T part is unused and in its original packaging.
Return procedure for MAX4211FETE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4211FETE-T Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
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…
