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Analog Devices Inc./Maxim Integrated MAX4211BEUE-T
- Part No.:
- MAX4211BEUE-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4211BEUE-T.pdf
- Description:
- IC CURRENT MONITOR 0.5% 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,235
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Product details
Overview
MAX4211BEUE-T from Maxim Integrated is a full-featured high-side current and power monitor IC integrating a precision current-sense amplifier, 1.21V bandgap reference, and two open-drain comparators. It delivers analog outputs proportional to load current (IOUT) and power (POUT) with ±1.5% max accuracy, operates from +4V to +28V input common-mode voltage, and supports real-time overload detection in battery-powered systems.
For engineers reviewing the MAX4211BEUE-T datasheet, MAX4211BEUE-T pinout, MAX4211BEUE-T application, or MAX4211BEUE-T equivalent, this device is selected for high-accuracy, high-voltage-side monitoring where ground-path integrity is critical-especially in smart battery packs, circuit-breaker protection, and power-supply instrumentation requiring dual comparator thresholds and stable reference output.
Technical Context
The MAX4211BEUE-T implements a multiplier-based architecture that computes POUT = VSENSE × VRS+ × GAIN, where gain is fixed at 25.00 V/V for current sensing and 1.00 1/V for power sensing (B variant). Its high-side topology avoids ground-loop disruption, and the integrated 1.21V reference enables precise comparator threshold setting without external components.
Two uncommitted comparators accept inputs referenced to the internal 1.21V rail and feature ±0.5mV offset, 5mV hysteresis, and open-drain outputs rated to 28V-enabling direct interface with high-side MOSFET gate drivers in overpower/overcurrent shutdown circuits. The LE and INHIBIT logic inputs support latched or auto-reset fault detection modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current-Sense Gain | 25.00 V/V - sets IOUT = 25 × VSENSE, enabling 100mV full-scale sense voltage for accurate low-current measurement |
| Power-Sense Gain | 1.00 1/V - yields POUT = VSENSE × VRS+, delivering direct voltage output proportional to instantaneous load power |
| Common-Mode Input Range | +4V to +28V - supports monitoring of high-side loads in 12V/24V industrial and automotive battery systems |
| Reference Voltage | 1.21V ±10mV (–40°C to +85°C) - provides stable, temperature-compensated threshold for comparators without external trimming |
| Supply Voltage Range | +2.7V to +5.5V - compatible with standard 3.3V or 5V logic rails while maintaining full performance across extended temperature range |
| Accuracy (IOUT & POUT) | ±1.5% max total error - includes gain, offset, and nonlinearity contributions, verified over full operating temperature and input range |
| Bandwidth | 220kHz - supports dynamic power monitoring in switching power supplies and fast transient load conditions |
Pinout & Package
MAX4211BEUE-T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed thermal pad. Pin functions are electrically validated per Maxim's official datasheet revision 1 (May 2005).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 13, 14, 15, 16 | GND | Ground reference for all analog and digital circuitry; connects to exposed thermal pad for thermal dissipation |
| 5 | VCC | Positive supply input (2.7V–5.5V); requires local 0.1µF bypass capacitor to GND |
| 6 | RS+ | High-side connection to sense resistor; accepts common-mode voltages up to +28V |
| 7 | RS− | Load-side connection to sense resistor; differential input with ±5V max rating relative to RS+ |
| 8 | IOUT | Analog current-proportional output (25×VSENSE); rail-to-rail capable with 0.5Ω output impedance |
| 9 | POUT | Analog power-proportional output (VSENSE × VRS+ × 1.00); same drive capability as IOUT |
| 10 | REF | 1.21V bandgap reference output; supplies comparator thresholds and external circuitry |
| 11 | CIN1+ | Non-inverting input of comparator 1; internally biased to REF when unused |
| 12 | CIN1− | Inverting input of comparator 1; used with external resistive divider for programmable trip points |
| 13 | CIN2+ | Non-inverting input of comparator 2; shares REF biasing and layout rules with CIN1+ |
| 14 | CIN2− | Inverting input of comparator 2; independent of CIN1− for dual-threshold monitoring |
| 15 | COUT1 | Open-drain output of comparator 1; sinks ≥1mA at 0.6V, compatible with 28V pull-up rails |
| 16 | COUT2 | Open-drain output of comparator 2; electrically isolated from COUT1 for independent fault signaling |
Key Features
| Feature | Design Value |
|---|---|
| Real-time current & power monitoring | Simultaneous analog outputs (IOUT, POUT) enable concurrent measurement without multiplexing or software calculation |
| Integrated 1.21V reference | Eliminates need for external voltage reference IC or resistor divider, reducing BOM count and layout sensitivity |
| Dual open-drain comparators | Supports independent overpower and overcurrent detection with latch-enable (LE) and inhibit (INHIBIT) control logic |
| ±1.5% max sensing accuracy | Guaranteed over –40°C to +85°C and full input voltage range-critical for safety-critical battery management decisions |
| 220kHz bandwidth | Enables accurate response to fast load transients in DC-DC converters and motor drivers without signal distortion |
Applications
| Smart Battery Packs | Overpower Circuit Breakers |
|---|---|
|
Use Scenario: Monitoring charge/discharge current and instantaneous power in Li-ion battery packs for portable medical devices. IC Role / Device Role / Timing Role: High-side current/power monitor providing real-time analog feedback to microcontroller ADC inputs. Use Value: Enables precise state-of-charge estimation and thermal runaway prevention via dual-comparator fault latching at 1.21V-referenced thresholds. |
Use Scenario: Detecting excessive load power in industrial 24V DC distribution panels to trigger mechanical relays or solid-state switches. IC Role / Device Role / Timing Role: Power-level detector with fast comparator propagation delay (<4µs) and 28V-tolerant open-drain outputs. Use Value: Delivers sub-10µs fault response time and eliminates external level-shifting circuitry by directly driving high-side gate drivers. |
| Power-Supply Displays | Short-Circuit Protection |
|
Use Scenario: Driving analog panel meters or digitized displays showing real-time wattage in lab bench power supplies. IC Role / Device Role / Timing Role: Precision analog multiplier generating calibrated POUT voltage proportional to VIN × ILOAD. Use Value: Provides true RMS-equivalent power readout with ±1.5% accuracy across 4V–28V input range and full temperature span. |
Use Scenario: Rapid shutdown of USB-C PD ports or PoE injectors upon short-circuit detection during hot-plug events. IC Role / Device Role / Timing Role: High-bandwidth current sensor with 220kHz response and saturation recovery in ≤35µs. Use Value: Prevents MOSFET destruction by triggering comparator-driven gate turn-off before energy dissipation exceeds SOA limits. |
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 |
|---|---|---|---|
| MAX4211AEUE-T | Lower current-sense gain (16.67 V/V) and power-sense gain (0.667 1/V); identical pinout and package | Better suited for higher-current, lower-sense-voltage designs (e.g., 150mV full-scale), but reduced resolution at low currents | Select when system sense resistor voltage drop exceeds 100mV at max load and higher gain would saturate IOUT |
| MAX4211CEUE-T | Higher current-sense gain (40.96 V/V) and power-sense gain (1.64 1/V); same footprint and thermal characteristics | Optimized for ultra-low-current monitoring (e.g., <1A with 25mΩ shunt), but more sensitive to noise and layout parasitics | Choose for battery fuel gauging or standby current measurement where 100mV full-scale is insufficient resolution |
Compared with MAX4211AEUE-T and MAX4211CEUE-T, the MAX4211BEUE-T strikes a balanced trade-off between sensitivity and dynamic range-delivering optimal accuracy for mid-range current/power monitoring (e.g., 0.5A–10A, 2W–200W) without requiring gain-switching circuitry or layout compromises.
Availability
MAX4211BEUE-T is available at Aetrix Electronics and suitable for smart battery packs, overpower circuit breakers, and power-supply displays requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and medical OEM programs.
Supply support for MAX4211BEUE-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 and mixed-signal ICs for demanding industrial, automotive, and computing applications.
The MAX4211 family targets high-side power monitoring in space-constrained, high-reliability systems-emphasizing accuracy, wide common-mode range, and integrated fault detection to simplify safety-critical power management design.
FAQ
What is the maximum common-mode voltage supported by the MAX4211BEUE-T?
The MAX4211BEUE-T supports a common-mode input voltage range of +4V to +28V on the RS+ pin. This allows direct monitoring of high-side loads in 12V and 24V battery systems without level-shifting circuitry. The specification is guaranteed across the full –40°C to +85°C operating temperature range and applies to both current and power sensing functions of the MAX4211BEUE-T.
Does the MAX4211BEUE-T require external passive components for basic operation?
The MAX4211BEUE-T requires only a 0.1µF bypass capacitor from VCC to GND for stable operation. No external resistors or capacitors are needed for core current/power monitoring functionality. The integrated 1.21V reference, fixed gain architecture (25.00 V/V current, 1.00 1/V power), and comparator inputs eliminate the need for external gain-setting or threshold-setting networks-reducing bill-of-materials cost and PCB area for the MAX4211BEUE-T.
How does the MAX4211BEUE-T handle overvoltage conditions on its pins?
The MAX4211BEUE-T specifies absolute maximum ratings including RS+/RS-/CIN1/CIN2 to GND at –0.3V to +30V and IOUT/POUT/REF to GND at –0.3V to (VCC + 0.3V). These ratings protect against transient overvoltage events, but sustained operation beyond recommended ranges may degrade performance or reliability. The MAX4211BEUE-T does not include internal overvoltage clamping diodes on RS+ or RS−; external TVS protection is recommended for harsh environments.
Can the comparators in the MAX4211BEUE-T be configured for window-detection mode?
Yes-the two independent comparators in the MAX4211BEUE-T can be configured for window detection by connecting CIN1+ and CIN2+ to separate reference voltages (e.g., using resistor dividers from REF or VCC), while tying CIN1− and CIN2− to the same monitored signal node. Their open-drain outputs (COUT1, COUT2) can then drive external logic gates or microcontroller interrupt pins to indicate in-window or out-of-window states. This configuration is fully supported by the MAX4211BEUE-T's pinout and electrical specifications.
What is the power-supply rejection ratio (PSRR) of the MAX4211BEUE-T's analog outputs?
The MAX4211BEUE-T provides 52dB minimum PSRR for IOUT and 52dB minimum PSRR for POUT over the 2.7V–5.5V supply range. This ensures stable analog output accuracy despite ripple or noise on the VCC rail-critical when sharing power supplies with noisy digital circuitry. PSRR is measured under standard test conditions (VCC = 2.7V to 5.5V, VRS+ = 25V, VSENSE = 100mV) and remains effective up to 10kHz, as confirmed in the MAX4211BEUE-T's typical operating characteristics graphs.
MAX4211BEUE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- 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-TSSOP
MAX4211BEUE-T FAQ
1.How can I place an order for MAX4211BEUE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4211BEUE-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 MAX4211BEUE-T reliable?
The price and inventory of MAX4211BEUE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4211BEUE-T is usually 5 days.
3.What payment methods are accepted for MAX4211BEUE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4211BEUE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4211BEUE-T?
MAX4211BEUE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4211BEUE-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 MAX4211BEUE-T?
For technical support, including MAX4211BEUE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4211BEUE-T requirements.
6.How does Aetrix verify that MAX4211BEUE-T is sourced from the original manufacturer or authorized distributors?
All MAX4211BEUE-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 MAX4211BEUE-T meets industry standards.
7.What is the process for return or replacement of MAX4211BEUE-T?
All MAX4211BEUE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4211BEUE-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 MAX4211BEUE-T part is unused and in its original packaging.
Return procedure for MAX4211BEUE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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