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Analog Devices Inc./Maxim Integrated MAX22210ATJ+T
- Part No.:
- MAX22210ATJ+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX22210ATJ+T.pdf
- Description:
- 36V , 3.8A DUAL BRUSHED/SINGLE S
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
MAX22210ATJ+T from Analog Devices is a dual-channel, 36V, 3.8A peak per H-bridge stepper motor driver with integrated 128-microstep indexer, nondissipative current sensing (ICS), and STEP/DIR interface. It delivers smooth, quiet motion control in compact industrial automation and precision positioning systems using two low-RON H-bridges (0.25Ω typical total RDS(ON)) and adaptive decay modes.
For engineers reviewing the MAX22210ATJ+T datasheet, MAX22210ATJ+T pinout, MAX22210ATJ+T application, or MAX22210ATJ+T equivalent, this page provides verified technical context, real-world design meaning for key specs, validated TQFN32 pin functions, confirmed alternative drivers with documented differences, and supply-ready availability details - all grounded in the official MAX22210 datasheet Rev 1 (11/2023).
Technical Context
The MAX22210ATJ+T implements a dual-H-bridge architecture with integrated gate drivers, charge-pump voltage doubler (VCP), and 1.8V LDO regulator (VDD). Its current regulation uses nondissipative ICS on low-side FETs, comparing sensed current against an ITRIP threshold set via REF resistor and HFS logic input.
It features a fully embedded 128-step indexer with STEP/DIR interface, programmable fixed OFF time (tOFF) via ROFF resistor, and three selectable decay modes (slow, mixed, adaptive) controlled by DECAY_/MODE_ pins - enabling precise torque/noise/efficiency trade-offs without external microcontroller intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | VM = +4.5V to +36V - supports wide-input industrial power rails including 24V DC systems with margin for transients. |
| Peak Output Current | 3.8A per H-bridge - limited by OCP; enables driving NEMA 17–23 stepper motors at high torque without external current limiting. |
| Total RDS(ON) | 0.25Ω (HS + LS, TA = +25°C) - reduces conduction loss and thermal rise, allowing 2A RMS operation on 4-layer PCB. |
| Microstepping Resolution | 128 steps per full step - achieved via internal DAC and lookup table; eliminates need for external motion controller interpolation. |
| Current Sense Accuracy | ±5% (HFS = low, IOUT = 0.7–3A) - enables closed-loop current monitoring for diagnostics without external shunts. |
| Thermal Shutdown | TJ = +165°C with 20°C hysteresis - protects against sustained overload or poor heatsinking in enclosed enclosures. |
| Package | 32-pin TQFN, 5mm × 5mm - exposes thermal pad (EP) for direct PCB ground plane connection; θJA = 29°C/W (4-layer board). |
Pinout & Package
MAX22210ATJ+T is packaged in a 32-pin, 5mm × 5mm TQFN with exposed thermal pad (EP), designated T3255-8C. The package supports high-power dissipation via soldered EP-to-ground-plane connection and is RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| OUT1A, OUT1B, OUT2A, OUT2B | H-Bridge Outputs | Drive phase A and B windings of bipolar stepper motor; each pair forms one full bridge with 36V rating and 3.8A peak capability. |
| ISENA, ISENB | Current Monitor Outputs | Analog current mirrors (7500 A/A scaling) of phase A/B low-side currents; used for real-time diagnostics or closed-loop feedback. |
| STEP, DIR, MODE[2:0] | Indexer Control Inputs | Accept standard step/direction signals; MODE pins select microstep resolution (1–128) without firmware overhead. |
| REF, ROFF, HFS | Configuration Analog/Logic Inputs | REF sets full-scale current (3A max); ROFF sets PWM OFF time; HFS toggles 2× current accuracy mode for low-current operation. |
| FAULT | Open-Drain Fault Indicator | Active-low signal asserts on OCP, UVLO, or TSD; requires external pull-up; enables system-level fault logging and safe shutdown. |
| VM, VDD, VCP, CP1, CP2 | Power & Charge-Pump Pins | VM supplies motor power; VDD is internal 1.8V LDO output; VCP/CP1/CP2 form charge pump for high-side gate drive above VM. |
| EN, SLEEP | Enable & Sleep Controls | EN disables outputs while preserving indexer state; SLEEP cuts quiescent current to 4μA and disables charge pump for standby. |
Key Features
| Feature | Design Value |
|---|---|
| Nondissipative Integrated Current Sensing (ICS) | Eliminates external sense resistors - saves >15mm² PCB area and removes up to 2W of heat generation per channel in high-current operation. |
| 128-Microstep Indexer with STEP/DIR Interface | Reduces MCU resource load: no firmware-based stepping logic required; supports seamless acceleration/deceleration profiles via external timer. |
| Configurable Decay Modes (Slow/Mixed/Adaptive) | Adaptive decay dynamically adjusts off-time based on current decay rate - minimizes torque ripple and audible noise across speed ranges. |
| HFS Logic Input for Enhanced Low-Current Accuracy | When HFS = high, full-scale current halves to 1.5A and low-side RON doubles - improves current regulation linearity below 0.55A by 2×. |
| Integrated Charge Pump (VCP) | Generates gate-drive voltage ≥ VM + 2.7V - ensures robust high-side FET turn-on even at VM = 4.5V, eliminating external bootstrap components. |
Applications
| Industrial CNC Positioning | Medical Infusion Pumps |
|---|---|
|
Use Scenario: Precise linear actuation of syringe plunger in battery-powered infusion devices requiring silent, vibration-free delivery. IC Role / Device Role / Timing Role: Dual-H-bridge driver executing 128-microstep motion profiles via STEP/DIR commands from MCU; ISEN outputs feed safety-critical current verification. Use Value: Nondissipative ICS avoids heat-induced fluid temperature drift; adaptive decay suppresses audible noise during slow-speed dosing (<10 RPM). |
Use Scenario: Closed-loop position control of X/Y gantry in desktop CNC mills handling aluminum and plastics. IC Role / Device Role / Timing Role: Stepper driver delivering 3.8A peak to NEMA 23 motors; FAULT pin triggers emergency stop on overcurrent or thermal fault. Use Value: 0.25Ω total RDS(ON) enables 2A RMS continuous current on 4-layer PCB without heatsink; ROFF resistor allows tuning tOFF for optimal torque at 200–1000 RPM. |
| Automated Laboratory Equipment | 3D Printer Extruder Control |
|
Use Scenario: High-repeatability sample stage movement in DNA sequencers where mechanical resonance must be minimized. IC Role / Device Role / Timing Role: Indexer-driven microstepping with HFS = high for sub-0.5A current accuracy; MODE pins configure 64-step mode for balance of resolution and step rate. Use Value: ±5% current accuracy at 0.35A ensures consistent motor holding torque across ambient temperatures; SLEEP mode reduces idle power to 4μA between assay cycles. |
Use Scenario: Real-time current monitoring of extruder stepper during filament jam detection in fused deposition modeling (FDM) printers. IC Role / Device Role / Timing Role: ISENA/ISENB outputs feed ADC of host MCU; FAULT pin flags OCP events during nozzle clogs; EN pin enables rapid motor disable. Use Value: Integrated current mirror eliminates need for separate shunt amplifier; 1μs STEP timing tolerance supports >20kHz step rates for high-speed printing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMC2209-LA | 2-phase, 2.8A peak, integrated UART interface; lower voltage (2.5–16V); no ISEN analog monitor outputs. | Best for cost-sensitive consumer 3D printers needing silent operation via spreadCycle; lacks analog current feedback for safety-critical use. | Choose TMC2209-LA when UART configurability and ultra-low noise outweigh need for analog current monitoring and 36V operation. |
| DRV8825PWPR | 2-phase, 2.2A RMS, 45V max; external current sense resistors required; no integrated indexer or ISEN outputs. | Suitable for legacy designs with existing shunt-based current control; higher board area and thermal overhead than MAX22210ATJ+T. | Choose DRV8825PWPR only if backward compatibility with existing layout and external current-sense circuitry is mandatory. |
Compared with TMC2209-LA and DRV8825PWPR, the MAX22210ATJ+T uniquely combines 36V operation, 3.8A peak drive, analog ISEN monitoring, and 128-microstep indexing in a single TQFN32 package - making it optimal for industrial and medical systems requiring diagnostic visibility, wide input range, and minimal external components.
Availability
MAX22210ATJ+T is available at Aetrix Electronics and suitable for industrial CNC positioning, medical infusion pumps, automated laboratory equipment, and 3D printer extruder control requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX22210ATJ+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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX22210 belongs to Analog Devices' precision motor control portfolio, designed specifically for compact, high-efficiency stepper solutions requiring integrated current sensing, microstepping, and robust protection - targeting space-constrained industrial and medical motion systems.
FAQ
What is the maximum continuous RMS current per H-bridge for MAX22210ATJ+T on a standard PCB?
The MAX22210ATJ+T supports 2A RMS per H-bridge at room temperature when mounted on a 4-layer PCB with adequate ground plane copper area. This limit is thermally derived - actual achievable RMS current depends on board layout, airflow, and heatsinking. For example, doubling copper area on inner layers can increase IRMS by ~15%, while forced air cooling may allow up to 2.5A RMS in optimized designs. Always verify junction temperature using θJA = 29°C/W (4-layer) and TJ(max) = +160°C.
How does the HFS pin affect current regulation accuracy in MAX22210ATJ+T?
When HFS = high, the MAX22210ATJ+T halves its full-scale current range (to 1.5A) and doubles low-side FET RON, improving current regulation accuracy to ±5% down to 0.35A - critical for low-torque applications like lab automation. At HFS = low, full-scale is 3A with ±5% accuracy from 0.7A upward. This dual-range architecture avoids quantization error near the bottom of the current scale, which would otherwise degrade positioning repeatability in sensitive instruments.
Can MAX22210ATJ+T operate without external sense resistors?
Yes - the MAX22210ATJ+T uses nondissipative integrated current sensing (ICS) on its low-side FETs, eliminating the need for external power shunt resistors. This reduces PCB area by >15mm², removes up to 2W of heat per channel, and avoids voltage drop errors associated with shunt placement. Current is mirrored to ISENA/ISENB pins with 7500 A/A scaling, enabling direct ADC monitoring without signal conditioning.
What decay modes does MAX22210ATJ+T support, and how are they selected?
The MAX22210ATJ+T supports slow, mixed, and adaptive decay modes, selected via DECAY1/DECAY2 and MODE2 pins per the truth table in the datasheet. Adaptive decay dynamically adjusts OFF time based on real-time current decay rate - suppressing torque ripple and acoustic noise across speed ranges. Slow decay maximizes torque at low speeds; mixed decay balances efficiency and smoothness. All modes are hardware-configurable without firmware involvement.
Is MAX22210ATJ+T pin-compatible with other packages of the same family?
No - MAX22210ATJ+T is the 32-pin TQFN variant (T3255-8C). The pinout differs significantly from the 28-pin TSSOP version (U28E+5C): TQFN has dedicated TRIGA/TRIGB pins and different MODE/DECAY pin assignments. Layouts are not interchangeable. Migration requires PCB redesign and validation of thermal performance, as TQFN offers superior θJA (29°C/W vs. 24.65°C/W for TSSOP on 4-layer board) but demands precise EP soldering.
MAX22210ATJ+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- Step/Direction
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- Stepper Motor Driver
- Current - Output:
- 3.8A
- Voltage - Supply:
- 4.5V ~ 36V
- Voltage - Load:
- 4.5V ~ 36V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TQFN (5x5)
MAX22210ATJ+T FAQ
1.How can I place an order for MAX22210ATJ+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22210ATJ+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 MAX22210ATJ+T reliable?
The price and inventory of MAX22210ATJ+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22210ATJ+T is usually 5 days.
3.What payment methods are accepted for MAX22210ATJ+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22210ATJ+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22210ATJ+T?
MAX22210ATJ+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22210ATJ+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 MAX22210ATJ+T?
For technical support, including MAX22210ATJ+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22210ATJ+T requirements.
6.How does Aetrix verify that MAX22210ATJ+T is sourced from the original manufacturer or authorized distributors?
All MAX22210ATJ+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 MAX22210ATJ+T meets industry standards.
7.What is the process for return or replacement of MAX22210ATJ+T?
All MAX22210ATJ+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22210ATJ+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 MAX22210ATJ+T part is unused and in its original packaging.
Return procedure for MAX22210ATJ+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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