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Analog Devices Inc./Maxim Integrated MAX22210ATJ+
- Part No.:
- MAX22210ATJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX22210ATJ+.pdf
- Description:
- 36V , 3.8A DUAL BRUSHED/SINGLE S
- Quantity:
- Payment:
- Shipping:
Inventory:688
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Product details
Overview
MAX22210ATJ+ from Analog Devices is a 2-phase stepper motor driver IC integrating two 36V, 3.8AMAX H-bridges with 0.25Ω typical total RON, 128-microstep indexer, integrated nondissipative current sensing (ICS), and STEP/DIR interface. It delivers smooth, quiet motion control in compact industrial automation and precision positioning systems.
For engineers reviewing the MAX22210ATJ+ datasheet, MAX22210ATJ+ pinout, MAX22210ATJ+ application, or MAX22210ATJ+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated package mapping to TQFN32 (5mm × 5mm), confirmed pin functions per official pin configuration, and two rigorously cross-checked alternative parts for stepper motor drive applications.
Technical Context
The MAX22210ATJ+ implements dual independent H-bridge drivers with adaptive decay control, supporting slow/mixed/adaptive decay modes via DECAY_/MODE_ logic inputs. Its embedded 128-step indexer operates synchronously with STEP/DIR commands and uses an internal DAC + lookup table for microstepping waveform generation.
Current regulation relies on nondissipative ICS monitoring low-side FET current, comparing against ITRIP set by REF resistor and HFS logic state. Fault detection includes per-FET OCP (3.8A threshold), thermal shutdown at +165°C, and VM UVLO at 4.0V, all reported via open-drain FAULT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | VM = +4.5V to +36V - supports wide-input industrial power rails without external DC-DC pre-regulation |
| Max Output Current per Bridge | 3.8AMAX - impulsive current limit enforced by OCP; defines peak torque capability before fault shutdown |
| Full-Scale Current Setting | 3AMAX - programmable via external REF resistor; sets upper bound of regulated current range |
| Total RON (HS + LS) | 0.25Ω typ at +25°C - enables high efficiency (>90% at 2A, 24V) and low thermal dissipation on 4-layer PCB |
| Microstep Resolution | 128 microsteps - achieved via integrated indexer + DAC + lookup table; eliminates need for external motion controller |
| Current Sense Accuracy | ±5% over 0.7–3A (HFS = low); ±5% over 0.35–1.5A (HFS = high) - enables closed-loop diagnostics without external shunts |
| Fixed OFF Time (tOFF) | 16–24μs internal default; adjustable via ROFF resistor (0.667 μs/kΩ) - tunes decay timing for optimal torque/noise trade-off |
Pinout & Package
MAX22210ATJ+ is packaged in a 32-pin TQFN (5mm × 5mm, exposed pad), RoHS-compliant, with θJA = 29°C/W on 4-layer board. Pinout optimized for dual H-bridge layout, current sense monitoring, and thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1A, OUT1B, OUT2A, OUT2B | H-Bridge Outputs | Drive phase A/B windings of bipolar stepper motor; each pair forms one full bridge |
| ISENA, ISENB | Current Mirror Outputs | Provide scaled analog current mirrors (7500 A/A or 3840 A/A) of respective phase currents for external monitoring |
| REF | Full-Scale Current Setpoint Input | Analog input; connects to GND via resistor to program IFS = 3A max (KIFS = 36 KV or 18.4 KV depending on HFS) |
| ROFF | PWM OFF-Time Programming Input | Analog input; resistor to GND sets tOFF = 16μs + (RROFF × 0.667 μs/kΩ) for precise decay control |
| STEP, DIR, MODE[2:0], DECAY[1:2], HFS, EN, SLEEP | Digital Control Inputs | Logic-level interface for indexer step/direction, decay mode selection, half-scale enable, output enable, and sleep entry |
| FAULT | Open-Drain Fault Indicator | Active-low signal asserting on OCP, TSD, or UVLO; requires external pull-up for MCU interrupt or status read |
| VM, VCP, CP1, CP2, AGND, PGND, EP | Power & Ground Terminals | VM supplies high-side gate drivers; charge pump (VCP/CP1/CP2) enables 100% duty-cycle operation; EP = PGND thermal path |
Key Features
| Feature | Design Value |
|---|---|
| Nondissipative Integrated Current Sensing (ICS) | Eliminates external sense resistors - saves >15 mm² PCB area and removes up to 2W of heat dissipation per bridge |
| Configurable Full-Scale Current (IFS) | 3A programmable via single REF resistor - enables precise current tuning across motor inductance and voltage ranges |
| HFS Logic for Enhanced Low-Current Accuracy | HFS = high halves IFS and doubles RON(LS) - improves regulation accuracy to ±5% down to 0.35A, critical for low-torque positioning |
| 128-Microstep Indexer with STEP/DIR Interface | On-chip indexer + DAC + lookup table - reduces host MCU firmware complexity and eliminates external step generator IC |
| Three Decay Mode Selection (Slow/Mixed/Adaptive) | Controlled via DECAY_/MODE_ pins - adaptive mode dynamically adjusts decay based on current zero-crossing for lowest acoustic noise |
Applications
| Industrial CNC Positioning | Medical Infusion Pumps |
|---|---|
|
Use Scenario: High-precision linear actuation in multi-axis CNC stages requiring sub-micron repeatability and minimal vibration. IC Role / Device Role / Timing Role: Dual H-bridge driver with 128-microstep indexer executing STEP/DIR commands; provides torque-smoothed, jitter-free motor phase sequencing. Use Value: Adaptive decay and low RON reduce audible noise and mechanical resonance, enabling silent operation in cleanroom environments. |
Use Scenario: Accurate, low-pulsation fluid delivery in portable infusion pumps where motor torque ripple must be <1%. IC Role / Device Role / Timing Role: Stepper driver with integrated current regulation and ISEN feedback; monitors real-time phase current for closed-loop flow calibration. Use Value: Nondissipative ICS and ±5% current accuracy at 0.5A ensure consistent peristaltic roller pressure and dosage fidelity. |
| Automated Test Equipment (ATE) | 3D Printer Motion Control |
|
Use Scenario: Fast, repeatable Z-axis movement in semiconductor wafer probers requiring rapid acceleration/deceleration without step loss. IC Role / Device Role / Timing Role: High-current (3.8AMAX) H-bridge driver with fast enable/disable (<0.6μs) and thermal protection for burst-mode operation. Use Value: 0.25Ω RON and 4-layer PCB thermal design support 2ARMS continuous current - sustains 1000+ cycles/hour without derating. |
Use Scenario: X/Y gantry control in desktop 3D printers where compact size, low EMI, and quiet operation are critical for home/office use. IC Role / Device Role / Timing Role: Compact TQFN32 stepper driver with STEP/DIR interface and mixed-decay mode for balanced speed/noise performance. Use Value: Elimination of external sense resistors reduces BOM count by 4 components and lowers system cost by $0.32/unit at volume. |
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 | Integrated UART interface, spreadCycle™ stealthChop; lower max voltage (29V) and current (2.8ARMS) | Better for ultra-quiet consumer printers; lacks ISEN analog monitor outputs and adaptive decay | Choose for UART-configurable, low-noise applications where analog current monitoring is unnecessary |
| DRV8825PWPR | 2.2ARMS max, external sense resistors required, no integrated indexer (requires external STEP logic) | Suitable for cost-sensitive designs with existing motion controller; higher board area and thermal overhead | Choose when BOM cost is primary constraint and host MCU handles indexing; avoid if space or thermal budget is tight |
Compared with TMC2209-LA and DRV8825PWPR, MAX22210ATJ+ uniquely combines 3.8AMAX drive strength, 128-microstep indexer, nondissipative ICS, and adaptive decay in a single TQFN32 package - delivering superior integration, thermal efficiency, and diagnostic capability for industrial-grade motion control.
Availability
MAX22210ATJ+ is available at Aetrix Electronics and suitable for industrial CNC positioning, medical infusion pumps, automated test equipment, and 3D printer motion control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX22210ATJ+ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision power, sensing, and motion control solutions.
The MAX22210 belongs to Analog Devices' high-integration stepper motor driver product line, designed specifically for compact, thermally efficient, and diagnostics-capable motion systems requiring embedded indexing and current monitoring without external components.
FAQ
What is the maximum continuous RMS current supported by MAX22210ATJ+?
MAX22210ATJ+ supports 2ARMS per H-bridge at +25°C on a 4-layer PCB with adequate copper pour. This value is thermally limited - actual achievable RMS current depends on PCB layout, heatsinking, and ambient airflow. Derating is required above +25°C; junction temperature must remain below +160°C under all operating conditions. The 2ARMS rating assumes proper thermal vias to the EP ground plane and no additional heatsink.
How does the HFS pin improve current control accuracy in MAX22210ATJ+?
When HFS = high, MAX22210ATJ+ halves its full-scale current range (e.g., from 3A to 1.5A) and doubles the low-side FET RON. This increases the effective resolution of the current regulation loop, improving accuracy to ±5% down to 0.35A. It is especially valuable in low-torque applications like optical lens positioning or microfluidic valve actuation where fine-grained current control near the lower boundary is essential.
Can MAX22210ATJ+ operate without external sense resistors?
Yes - MAX22210ATJ+ integrates nondissipative current sensing (ICS) that monitors low-side FET current directly. No external power sense resistors are required, eliminating associated power loss, board space, and thermal management overhead. The sensed currents are mirrored to ISENA and ISENB pins for external monitoring, enabling real-time diagnostics without compromising efficiency.
What decay modes does MAX22210ATJ+ support and how are they selected?
MAX22210ATJ+ supports slow, mixed, and adaptive decay modes. Selection is made using the DECAY1/DECAY2 and MODE[2:0] logic inputs per the truth table in the datasheet. Adaptive decay automatically switches between slow and fast decay based on real-time current zero-crossing detection - minimizing torque ripple and acoustic noise during microstepping, especially at low speeds.
Is the MAX22210ATJ+ pinout compatible with other packages of the same device?
No - MAX22210ATJ+ is the TQFN32 (5mm × 5mm) variant. It has a different pin count and layout than the TSSOP28 version (MAX22210AUT+). While both share identical electrical functionality and register mapping, their pin assignments, thermal pad configuration, and PCB footprints are incompatible. Migration requires full layout redesign and validation; no mechanical or electrical drop-in replacement exists between packages.
MAX22210ATJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tray
- 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+ FAQ
1.How can I place an order for MAX22210ATJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22210ATJ+ 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+ reliable?
The price and inventory of MAX22210ATJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22210ATJ+ is usually 5 days.
3.What payment methods are accepted for MAX22210ATJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22210ATJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22210ATJ+?
MAX22210ATJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22210ATJ+ 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+?
For technical support, including MAX22210ATJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22210ATJ+ requirements.
6.How does Aetrix verify that MAX22210ATJ+ is sourced from the original manufacturer or authorized distributors?
All MAX22210ATJ+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX22210ATJ+?
All MAX22210ATJ+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22210ATJ+, 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+ part is unused and in its original packaging.
Return procedure for MAX22210ATJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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