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Analog Devices Inc./Maxim Integrated MAX4211AETE
- Part No.:
- MAX4211AETE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4211AETE.pdf
- Description:
- IC CURRENT MONITOR 0.5% 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,999
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Product details
Overview
MAX4211AETE from Maxim Integrated is a high-side current and power monitor IC featuring integrated 1.21V bandgap reference, two open-drain comparators, and fixed 16.67V/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 MAX4211AETE datasheet, MAX4211AETE pinout, MAX4211AETE application, or MAX4211AETE equivalent, this device is selected for high-side sensing in smart battery packs, overpower circuit breakers, and power-supply displays where ground-path integrity and dual-threshold fault detection are critical.
Technical Context
The MAX4211AETE integrates a precision high-side current-sense amplifier with 16.67V/V gain, a stable 1.21V reference, and two independent comparators with 5mV hysteresis and 0.2V–(VCC−1.15V) common-mode input range. Its POUT output multiplies sensed current and source voltage (VRS+) using internal analog multiplication architecture.
It supports real-time monitoring with 220kHz IOUT/POUT bandwidth, ±1.5% max current-sense accuracy, ±1.5% max power-sense accuracy, and comparator propagation delay under 4µs. The open-drain COUT1/COUT2 outputs tolerate up 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 | 16.67V/V - sets IOUT = 16.67 × VSENSE for precise current scaling |
| Power-Sense Gain | 0.667 1/V - yields POUT = 0.667 × VSENSE × VRS+ for linear power output |
| Common-Mode Input Range | +4V to +28V at RS+ - enables direct high-side sensing across wide supply rails |
| Supply Voltage Range | +2.7V to +5.5V - compatible with single Li-ion or 3.3V/5V system rails |
| Reference Output | 1.21V ±10mV - stable internal bandgap used for comparator thresholds and calibration |
| Comparator Outputs | Two open-drain outputs (COUT1/COUT2) - support wired-OR logic and 28V-tolerant external pull-ups |
| Accuracy (IOUT/POUT) | ±1.5% max over −40°C to +85°C - ensures reliable fault detection without software compensation |
Pinout & Package
MAX4211AETE is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed thermal pad. Pin 1 marked by dot; pins numbered counterclockwise from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Primary return path for all analog and digital circuitry; must be low-impedance connection to 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 input | Connects to positive terminal of external sense resistor; handles +4V to +28V common-mode voltage |
| RS− | Load-side sense input | Connects to load side of sense resistor; differential input with ±5V max rating relative to RS+ |
| IOUT | Current-proportional output | Analog voltage output scaled to load current; drives 1MΩ load with 0.5Ω output impedance |
| POUT | Power-proportional output | Analog voltage output proportional to instantaneous power (VSENSE × VRS+); same drive capability as IOUT |
| REF | 1.21V reference output | Stable bandgap voltage source; can bias comparators or external circuits; sinks/supplies ≤100µA |
| CIN1+, CIN1− | Comparator 1 inputs | Differential inputs referenced to REF; support programmable overcurrent/overpower thresholds |
| CIN2+, CIN2− | Comparator 2 inputs | Second independent differential pair for redundant or multi-level fault detection |
| COUT1, COUT2 | Open-drain comparator outputs | Active-low outputs; require external pull-up to ≤28V; enable direct control of high-side switches |
| LE | Latch enable | Active-high logic input; latches comparator outputs to hold fault state until cleared |
| INHIBIT | Monitoring disable | Active-high input; disables IOUT/POUT outputs and comparators to reduce quiescent current |
| N.C. | No connection | Pins 10, 11, 12, 14, 15 - not bonded; leave unconnected and unpopulated on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.21V reference | Provides stable, temperature-compensated threshold for both comparators without external components |
| Dual open-drain comparators | Enable independent overpower and overcurrent detection with 28V-tolerant outputs for high-side switch control |
| Real-time analog multiplication | Delivers true instantaneous power output (POUT) without microcontroller or ADC intervention |
| ±1.5% max sensing accuracy | Guarantees reliable trip-point consistency across temperature and supply voltage variations |
| 220kHz signal bandwidth | Supports fast transient response for short-circuit detection within ~4.5µs rise time |
| INHIBIT and LE control logic | Allows system-level power management and latched fault reporting in resource-constrained designs |
Applications
| Smart Battery Packs | Overpower Circuit Breakers |
|---|---|
|
Use Scenario: Monitoring charge/discharge current and instantaneous power in Li-ion battery packs with protection ICs. IC Role / Device Role / Timing Role: High-side current/power monitor providing analog feedback to battery management system (BMS) for real-time cell balancing and thermal derating. Use Value: Enables accurate Coulomb counting and power-based cutoff before thermal runaway, leveraging ±1.5% sensing accuracy and 220kHz bandwidth. |
Use Scenario: Detecting sustained overload conditions in DC power distribution units to trigger mechanical or solid-state breakers. IC Role / Device Role / Timing Role: Dual-comparator high-side monitor generating latchable fault signals for high-side MOSFET gate drivers. Use Value: Eliminates need for separate current and voltage monitors; open-drain COUT outputs directly drive 28V-rated gate drivers with no level-shifting. |
| Power-Supply Displays | Short-Circuit Protection |
|
Use Scenario: Driving analog meters or ADC inputs in lab bench PSUs or telecom rectifiers to display real-time output power. IC Role / Device Role / Timing Role: Analog power transducer converting VSENSE and VRS+ into calibrated POUT voltage for front-panel instrumentation. Use Value: Delivers linear, temperature-stable POUT output (0.667 × VSENSE × VRS+) with <±1.5% error-no firmware calibration required. |
Use Scenario: Rapid detection of sub-millisecond short circuits in motor drives or LED drivers before fuse blow or MOSFET failure. IC Role / Device Role / Timing Role: High-bandwidth current monitor feeding comparator inputs with <4µs propagation delay for hardware-fast shutdown. Use Value: Achieves <10µs total fault-to-action latency (including saturation recovery), protecting downstream FETs without software latency. |
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 |
|---|---|---|---|
| MAX4211BETE | 25.00V/V current gain (vs. 16.67V/V); identical package, reference, and comparator features | Better resolution for lower-current sensing (e.g., <1A loads with 10mΩ shunt), but reduced full-scale range | Select MAX4211BETE when VSENSE remains below 60mV at full load; otherwise MAX4211AETE provides wider dynamic range |
| MAX4211CETE | 40.96V/V current gain; same 16-pin TSSOP; higher gain increases sensitivity but reduces noise margin | Optimized for ultra-low-current monitoring (e.g., µA–mA sleep modes), less suitable for high-power transient detection | Choose MAX4211CETE only if design requires <10mV full-scale VSENSE; MAX4211AETE offers best balance of range and accuracy for general-purpose use |
Compared with MAX4211BETE and MAX4211CETE, the MAX4211AETE provides the widest usable VSENSE range (10–150mV) while maintaining ±1.5% accuracy and 220kHz bandwidth-making it optimal for mid-range current/power monitoring where dynamic headroom and noise immunity are prioritized.
Availability
MAX4211AETE 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 guaranteed traceable sourcing.
Supply support for MAX4211AETE 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 management, sensing, and interface applications in industrial, automotive, and computing markets.
The MAX4211 series belongs to Maxim's high-side current/power monitor product line, engineered specifically for ground-independent load monitoring in battery-powered and high-reliability power systems.
FAQ
What is the maximum common-mode voltage supported by the MAX4211AETE?
The MAX4211AETE supports a +4V to +28V common-mode input range at the RS+ pin. This allows direct high-side sensing across wide-input DC supplies-including 12V, 24V, and 28V industrial rails-without level-shifting circuitry. The specification is guaranteed over the full −40°C to +85°C operating temperature range.
Does the MAX4211AETE require external resistors for gain setting?
No, the MAX4211AETE does not require external gain-setting resistors. It uses factory-trimmed internal amplifiers with fixed 16.67V/V current-sense gain and 0.667 1/V power-sense gain. Unlike the MAX4210D/E/F variants, the MAX4211AETE integrates all signal-path components-only an external sense resistor and bypass capacitors are needed.
How do the comparators in the MAX4211AETE interface with external high-voltage circuits?
The MAX4211AETE's COUT1 and COUT2 outputs are open-drain and rated for up to 28V pull-up voltage. This allows direct connection to external 12V or 24V logic or gate drivers without level shifters. Each output can sink ≥1mA at 0.6V, enabling robust interfacing with high-side MOSFET controllers in circuit-breaker applications.
What is the role of the INHIBIT pin on the MAX4211AETE?
The INHIBIT pin on the MAX4211AETE is an active-high logic input that disables the IOUT and POUT amplifiers and comparators to reduce supply current to <1µA. When asserted, it halts real-time monitoring and fault detection-ideal for low-power sleep modes in battery-operated systems while preserving configuration state.
Can the MAX4211AETE's reference output (REF) be used to bias external circuitry?
Yes, the REF pin on the MAX4211AETE delivers a precision 1.21V ±10mV bandgap voltage capable of sourcing or sinking up to 100µA. It is commonly used to bias the CIN1+/CIN2+ comparator inputs, set shunt regulator thresholds, or calibrate external ADC references-eliminating the need for a separate voltage reference IC.
MAX4211AETE 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)
MAX4211AETE FAQ
1.How can I place an order for MAX4211AETE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4211AETE 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 MAX4211AETE reliable?
The price and inventory of MAX4211AETE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4211AETE is usually 5 days.
3.What payment methods are accepted for MAX4211AETE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4211AETE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4211AETE?
MAX4211AETE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4211AETE 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 MAX4211AETE?
For technical support, including MAX4211AETE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4211AETE requirements.
6.How does Aetrix verify that MAX4211AETE is sourced from the original manufacturer or authorized distributors?
All MAX4211AETE 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 MAX4211AETE meets industry standards.
7.What is the process for return or replacement of MAX4211AETE?
All MAX4211AETE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4211AETE, 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 MAX4211AETE part is unused and in its original packaging.
Return procedure for MAX4211AETE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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