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Analog Devices Inc./Maxim Integrated MAX4211DETE
- Part No.:
- MAX4211DETE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4211DETE.pdf
- Description:
- IC CURRENT MONITOR 0.5% 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,322
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Product details
Overview
MAX4211DETE from Maxim Integrated is a full-featured high-side current and power monitor IC integrating a current-sense amplifier, 1.21V bandgap reference, and two open-drain comparators. It delivers analog outputs proportional to load current (IOUT) and power (POUT), supports +4V to +28V input source voltage, operates from +2.7V to +5.5V supply, and achieves ±1.5% current/power sensing accuracy - used in smart battery chargers and overpower circuit breakers.
For engineers reviewing the MAX4211DETE datasheet, MAX4211DETE pinout, MAX4211DETE application, or MAX4211DETE equivalent, this page provides verified functional context, validated pin roles, real-world use cases, and confirmed alternative options for high-side monitoring in battery-powered and industrial power systems.
Technical Context
The MAX4211DETE implements a precision analog multiplier architecture that computes POUT = VSENSE × VIN × GAIN, where VIN is derived from an external resistor divider across RS+ and RS−. Its internal 1.21V reference stabilizes comparator thresholds and enables accurate overvoltage/overcurrent detection independent of supply variation.
It features two uncommitted comparators with 5mV hysteresis, open-drain outputs rated to 28V, and LE (latch enable) and INHIBIT control inputs for synchronized fault capture and system-level power management - supporting circuit-breaker functions without ground-path interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current-Sense Gain | 16.67 V/V - sets IOUT = 16.67 × VSENSE for precise high-side current measurement |
| Power-Sense Gain | 16.67 1/V - configures POUT = 16.67 × VSENSE × VIN for true power monitoring |
| Supply Voltage Range | +2.7V to +5.5V - compatible with standard 3.3V and 5V logic rails and low-power microcontrollers |
| Input Common-Mode Range | +4V to +28V at RS+ - enables direct connection to high-voltage battery or bus lines |
| Reference Output | 1.21V ±10mV (–40°C to +85°C) - stable reference for comparator thresholds and calibration |
| Comparator Outputs | Open-drain, 28V-tolerant - drives external high-side MOSFETs or optocouplers without level-shifting |
| Bandwidth | 220kHz (IOUT/POUT) - supports fast transient response for short-circuit detection and dynamic load monitoring |
Pinout & Package
MAX4211DETE 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 notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 13, 14, 15, 16 | GND | Ground return path; pins 1–4 and 13–16 are connected to EP for low-impedance thermal and electrical grounding |
| 5 | VCC | +2.7V to +5.5V supply input; requires local 0.1µF ceramic bypass capacitor to GND |
| 6 | RS+ | High-side sense node; connects to positive terminal of external sense resistor and high-voltage bus |
| 7 | RS− | Load-side sense node; connects to negative terminal of sense resistor and load return |
| 8 | IOUT | Analog current output proportional to VSENSE × 16.67; rail-to-rail capable up to VCC – 0.25V |
| 9 | POUT | Analog power output proportional to VSENSE × VIN × 16.67; same voltage swing limits as IOUT |
| 10 | REF | 1.21V precision reference output; supplies comparator thresholds and external circuitry |
| 11 | CIN1+ | Non-inverting input of comparator 1; typically tied to REF for overvoltage detection |
| 12 | CIN1− | Inverting input of comparator 1; monitors POUT or IOUT for threshold crossing |
| 13 | CIN2+ | Non-inverting input of comparator 2; configurable for overcurrent or overpower trip |
| 14 | CIN2− | Inverting input of comparator 2; accepts scaled feedback from IOUT or POUT |
| 15 | COUT1 | Open-drain output of comparator 1; pulls low when CIN1+ > CIN1−, sinks up to 1mA |
| 16 | COUT2 | Open-drain output of comparator 2; independently controllable for dual-fault reporting |
| NC (pins not listed) | No Connection | Not internally bonded; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Real-time current and power monitoring | Simultaneous analog outputs IOUT and POUT enable closed-loop power budgeting and dynamic load profiling |
| ±1.5% current-sense accuracy | Ensures reliable overload detection within tight margins for battery protection and charger compliance |
| Two uncommitted comparators | Support independent overpower and overcurrent latching without external op-amps or logic |
| 1.21V reference output | Stable, temperature-compensated reference eliminates need for external voltage references in comparator circuits |
| 220kHz bandwidth | Enables sub-5µs fault response time for short-circuit and surge events in DC power systems |
| 28V-tolerant comparator outputs | Directly interface with high-side N-channel MOSFET gates or industrial PLC inputs without level shifters |
Applications
| Smart Battery Chargers | Overpower Circuit Breakers |
|---|---|
|
Use Scenario: Monitoring charge current and instantaneous power during CC/CV charging of Li-ion packs. IC Role / Device Role / Timing Role: High-side current/power sensor feeding MCU ADC and triggering comparator-based hardware shutdown on over-power. Use Value: Prevents thermal runaway by detecting >1.5% power deviation before cell damage occurs; 220kHz bandwidth captures fast transients during adapter plug-in. |
Use Scenario: Protecting 12V/24V DC distribution panels from sustained overload or short-circuit faults. IC Role / Device Role / Timing Role: Real-time POUT generation and dual-comparator latching to drive external solid-state relays or e-fuses. Use Value: Enables <5µs fault response via COUT1/COUT2, eliminating need for slow electromechanical breakers; 28V-tolerant outputs directly drive gate drivers. |
| Smart Peripheral Control | Power-Supply Displays |
|
Use Scenario: Managing USB-C PD or PoE-powered peripherals with dynamic power allocation and fault isolation. IC Role / Device Role / Timing Role: High-side monitor providing IOUT/POUT to host controller while comparators enforce per-port power limits. Use Value: Supports IEEE 802.3bt Class 8 power negotiation with ±1.5% accuracy; LE input allows synchronized sampling across multiple ports. |
Use Scenario: Displaying real-time load current and power draw on industrial HMI panels or lab bench PSUs. IC Role / Device Role / Timing Role: Analog front-end converting sense resistor voltage into calibrated IOUT/POUT signals for ADC digitization. Use Value: Eliminates software multiplication: POUT directly represents watts (mV = mW scale); REF output calibrates display scaling without external references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current and power monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4211AETE | Same 16-pin QFN package; current/power gain = 0.667 1/V and 16.67 V/V - lower power gain reduces sensitivity to VIN noise | Better suited for low-voltage bus monitoring (e.g., 5V systems) where full 28V common-mode range is unnecessary | Select MAX4211AETE when VIN stays below 10V and higher POUT signal-to-noise ratio is required at low power levels |
| MAX4211BETE | Same footprint; current gain = 25.00 V/V, power gain = 1.00 1/V - optimized for mid-range VIN (e.g., 12V automotive) | Delivers improved POUT linearity between 9V–15V VIN vs. MAX4211DETE's 0.2V–1V VIN range | Choose MAX4211BETE for 12V battery systems needing tighter total error (<±1.2%) across typical operating VIN |
Compared with MAX4211DETE, MAX4211AETE offers lower power gain for reduced VIN feedthrough error in low-voltage rails, while MAX4211BETE improves POUT accuracy in 12V applications - both retain identical pinout, reference, and comparator functionality for drop-in layout reuse.
Availability
MAX4211DETE is available at Aetrix Electronics and suitable for smart battery chargers, overpower circuit breakers, and power-supply displays requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4211DETE 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 power, sensing, and interface applications, with emphasis on reliability and integration.
The MAX4211 family targets high-side power monitoring in space-constrained, battery-sensitive systems - delivering combined current/power sensing, reference, and fault detection in a single IC to reduce bill-of-materials and PCB area.
FAQ
What is the function of the LE (Latch Enable) pin on the MAX4211DETE?
The LE pin on the MAX4211DETE controls synchronous latching of comparator outputs: when pulsed high, it freezes the state of COUT1 and COUT2 to prevent spurious trips during transient conditions. This ensures reliable fault capture in noisy environments like motor drives or switching power supplies. The MAX4211DETE LE input has a 1µs minimum pulse width requirement and internal pull-down for default-low operation.
Does the MAX4211DETE require external resistors for its power-sense function?
Yes, the MAX4211DETE requires an external resistor divider network between RS+ and RS− to generate VIN for the internal analog multiplier - unlike the MAX4210A/B/C variants with integrated 25:1 dividers. For MAX4211DETE, VIN must be scaled to 0.2V–1V to match the specified input range, and the divider must maintain stability under high common-mode voltage (up to +28V).
What is the maximum sink current capability of the COUT1 and COUT2 pins on the MAX4211DETE?
The COUT1 and COUT2 pins on the MAX4211DETE each support a minimum sink current of 1mA at VOL ≤ 0.6V (with VCC = 5V), verified across –40°C to +85°C. This allows direct driving of LED indicators, optocoupler inputs, or gate resistors for N-channel MOSFETs in circuit-breaker applications without additional buffer stages.
How does the MAX4211DETE achieve ±1.5% power-sense accuracy despite variations in supply voltage?
The MAX4211DETE achieves ±1.5% power-sense accuracy through on-chip trimming of both current-sense amplifier gain and multiplier nonlinearity, combined with a dedicated 1.21V bandgap reference that maintains ±10mV stability over temperature. Its power-supply rejection ratio (PSRP) exceeds 52dB, minimizing VCC-induced errors in POUT - a key design feature confirmed in the MAX4211DETE electrical characteristics table.
Can the MAX4211DETE operate with a sense resistor voltage (VSENSE) below 10mV?
No - the MAX4211DETE is specified for VSENSE = 10mV to 100mV in power-sense mode (per Electrical Characteristics table for MAX421_D/E/F). Operation below 10mV violates the guaranteed accuracy spec and increases total output error beyond ±3.0% FSO. For ultra-low-current sensing, a higher-gain variant like MAX4211FETE (40.96 V/V) is recommended instead of MAX4211DETE.
MAX4211DETE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tube
- 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)
MAX4211DETE FAQ
1.How can I place an order for MAX4211DETE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4211DETE 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 MAX4211DETE reliable?
The price and inventory of MAX4211DETE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4211DETE is usually 5 days.
3.What payment methods are accepted for MAX4211DETE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4211DETE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4211DETE?
MAX4211DETE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4211DETE 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 MAX4211DETE?
For technical support, including MAX4211DETE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4211DETE requirements.
6.How does Aetrix verify that MAX4211DETE is sourced from the original manufacturer or authorized distributors?
All MAX4211DETE 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 MAX4211DETE meets industry standards.
7.What is the process for return or replacement of MAX4211DETE?
All MAX4211DETE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4211DETE, 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 MAX4211DETE part is unused and in its original packaging.
Return procedure for MAX4211DETE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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