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Analog Devices Inc./Maxim Integrated MAX22210AUI+T
- Part No.:
- MAX22210AUI+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX22210AUI+T.pdf
- Description:
- 36V , 3.8A DUAL BRUSHED/SINGLE S
- Quantity:
- Payment:
- Shipping:
Inventory:2,880
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Product details
Overview
The MAX22210AUI+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 - designed for precision motion control in compact industrial and automation systems.
For engineers reviewing the MAX22210AUI+T datasheet, MAX22210AUI+T pinout, MAX22210AUI+T application, or MAX22210AUI+T equivalent, this page delivers verified technical context on microstepping resolution, decay mode selection, ISEN current monitoring, thermal derating behavior, and HFS logic-driven current accuracy enhancement.
Technical Context
The MAX22210AUI+T implements a dual-H-bridge architecture with integrated gate drivers, charge pump (VCP), and 128-step indexer controlled via STEP/DIR signals. Its current regulation uses nondissipative low-side FET sensing with programmable ITRIP threshold set by REF resistor and fine-tuned via HFS logic input.
It supports three decay modes - slow, mixed, and adaptive - selected via DECAY_/MODE_ pins, with fixed OFF time (tOFF) configurable via ROFF resistor. Fault conditions (OCP, TSD, UVLO) trigger an open-drain FAULT pin, while ISENA/ISENB provide real-time mirrored phase current outputs scaled at 7500 A/A (HFS = low) or 3840 A/A (HFS = high).
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. |
| Peak Output Current | 3.8A per H-bridge - limited by overcurrent protection (OCP), enabling direct drive of NEMA 17–23 motors. |
| Total RON (HS + LS) | 0.25Ω typical at +25°C - ensures high efficiency and low thermal dissipation under load. |
| Microstepping Resolution | 128 microsteps - achieved via internal DAC and lookup table, enabling smooth, low-vibration positioning. |
| Current Sense Accuracy | ±0.4% typical (DITRIP1), ±5% max over full range - enables precise closed-loop current control without external shunts. |
| Thermal Shutdown Threshold | TJ = +165°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design. |
| Fixed OFF Time Range | 16–24μs internal; extended via ROFF resistor (15kΩ–120kΩ) - allows tuning of PWM decay dynamics. |
Pinout & Package
MAX22210AUI+T is packaged in a 28-pin TSSOP (4.4mm × 9.7mm, package code U28E+5C), RoHS-compliant, with exposed thermal pad (EP) tied to PGND. Pin functions are validated per official Analog Devices pin configuration diagram and description table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1A, OUT1B, OUT2A, OUT2B | H-Bridge Outputs | Drive two-phase bipolar stepper motor windings; each pair forms one full bridge (A/B). |
| ISENA, ISENB | Current Monitor Outputs | Analog current mirrors (7500 A/A or 3840 A/A) for real-time phase current diagnostics and feedback. |
| STEP, DIR, MODE[2:0], DECAY[1:2] | Digital Control Inputs | Indexer interface: STEP edge advances position; DIR sets direction; MODE/DECAY select microstep mode and decay behavior. |
| REF, ROFF, HFS | Analog/Logic Configuration | REF sets full-scale current (IFS = 3A); ROFF sets tOFF; HFS toggles 100%/50% current scaling for improved low-current accuracy. |
| FAULT, EN, SLEEP | System Interface Signals | Open-drain FAULT reports OCP/TSD/UVLO; EN disables outputs while preserving indexer state; SLEEP reduces quiescent current to 4μA. |
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 generation in 2A RMS operation. |
| 128-Microstep Indexer with STEP/DIR Interface | Reduces mechanical resonance and audible noise vs. 16-step alternatives; requires no external microcontroller firmware for basic motion. |
| HFS Logic Input for Dual-Range Current Control | Switches full-scale current from 3A to 1.5A and doubles low-side RON, improving regulation accuracy below 1.1A by up to 2×. |
| Adaptive Decay Mode | Automatically adjusts decay timing based on current zero-crossing detection - minimizes torque ripple and improves mid-band stability. |
| Configurable Fixed OFF Time (tOFF) | Set via ROFF resistor (15kΩ–120kΩ) to optimize PWM efficiency across motor inductance and supply voltage variations. |
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; ISENA/ISENB feed back real-time current for closed-loop stall detection. Use Value: Nondissipative current sensing eliminates heat-generating shunts in sealed enclosures; adaptive decay prevents pressure overshoot during flow rate transitions. |
Use Scenario: High-resolution Z-axis movement in portable diagnostic imaging modules where EMI and acoustic noise must be minimized. IC Role / Device Role / Timing Role: Stepper driver controlling lead-screw-based focus mechanism; HFS pin enabled for sub-1A current accuracy during fine-focus calibration sequences. Use Value: 0.25Ω total RON reduces power loss by 35% vs. legacy 0.4Ω drivers, extending battery life; 128-step resolution achieves <1.8μm step size with standard 1.8° motors. |
| Automated Laboratory Equipment | Printed Circuit Board Assembly (SMT Pick-and-Place) |
|
Use Scenario: Multi-axis sample handling in robotic liquid handlers operating in temperature-controlled environments (-20°C to +50°C). IC Role / Device Role / Timing Role: Motor driver managing XYZ gantry motion; FAULT pin connected to system watchdog; thermal shutdown (TSD) prevents drift-induced positioning errors at elevated ambient. Use Value: Guaranteed operation from -40°C to +125°C junction temperature; 24.65°C/W θJA (4-layer board) enables convection-cooled designs without heatsinks. |
Use Scenario: High-speed component placement head requiring rapid acceleration/deceleration with minimal vibration-induced misalignment. IC Role / Device Role / Timing Role: Dual-channel driver powering two independent stepper axes (X/Y); ROFF resistor tuned to 40μs tOFF for optimal torque at 10kHz PWM frequency. Use Value: Mixed decay mode reduces settling time by 22% vs. slow decay alone; STEP/DIR interface simplifies integration with FPGA-based motion controllers. |
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, stealthChop2 quiet stepping, lower max voltage (29V), no ISEN analog monitor output. | Better for ultra-low-noise consumer robotics; lacks analog current feedback needed for safety-critical diagnostics. | Choose MAX22210AUI+T when analog ISEN monitoring, 36V operation, or deterministic decay control is required. |
| DRV8825PWPR | 2.2A peak, 1/32 microstepping only, external sense resistors required, no adaptive decay or HFS scaling. | Suitable for cost-sensitive, low-power applications; cannot match MAX22210AUI+T's 128-step smoothness or thermal performance. | Choose MAX22210AUI+T when higher current (3.8A), finer microstepping, or space-constrained layouts eliminate external shunts. |
Compared with TMC2209-LA and DRV8825PWPR, the MAX22210AUI+T delivers superior current regulation accuracy at low loads (via HFS), eliminates external sense resistors, supports higher bus voltage (36V), and provides analog ISEN outputs for real-time diagnostics - making it optimal for industrial-grade motion systems demanding reliability and serviceability.
Availability
MAX22210AUI+T is available at Aetrix Electronics and suitable for industrial CNC positioning, medical infusion pumps, automated laboratory equipment, and SMT pick-and-place systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX22210AUI+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.
The MAX22210AUI+T belongs to Analog Devices' precision motion control portfolio, engineered specifically for compact, thermally constrained stepper applications requiring high microstepping fidelity, integrated diagnostics, and robust fault protection.
FAQ
What is the maximum continuous RMS current per H-bridge for MAX22210AUI+T on a 4-layer PCB?
The MAX22210AUI+T supports 2A RMS per H-bridge at +25°C ambient on a 4-layer PCB with adequate ground plane. This value is thermally limited - actual achievable RMS current depends on layout, airflow, and heatsinking. Derating curves in the datasheet show ~1.4A RMS at +85°C ambient.
How does the HFS pin improve current control accuracy in MAX22210AUI+T?
When HFS = high, the MAX22210AUI+T halves its full-scale current range (from 3A to 1.5A) and doubles low-side FET RON, increasing current-sense gain and reducing relative quantization error. This yields ±0.4% typical accuracy down to 0.25A - critical for low-torque micro-positioning tasks.
Can MAX22210AUI+T operate without external sense resistors?
Yes. The MAX22210AUI+T uses nondissipative integrated current sensing (ICS) on the low-side FETs, eliminating the need for external power shunts. This reduces PCB area, thermal load, and BOM count - confirmed in the device's functional diagram and "Benefits and Features" section.
What decay modes does MAX22210AUI+T support, and how are they selected?
The MAX22210AUI+T supports slow, mixed, and adaptive decay modes. Selection is done via DECAY1/DECAY2 pins and MODE[2:0] inputs per Table 4 in the datasheet. Adaptive decay dynamically switches between slow and fast decay based on current zero-crossing detection - improving torque consistency across speed ranges.
Is MAX22210AUI+T pin-compatible with other packages of the same family?
No. The MAX22210AUI+T is the TSSOP-28 variant (U28E+5C). It is not pin-compatible with the TQFN-32 version (MAX22210ATP+T). Pin counts, layouts, and thermal pad configurations differ - PCB redesign is required when switching between packages.
MAX22210AUI+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- Step/Direction
- Technology:
- NMOS
- Step Resolution:
- 1 ~ 1/128
- Applications:
- General Purpose
- 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:
- 28-TSSOP-EP
MAX22210AUI+T FAQ
1.How can I place an order for MAX22210AUI+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22210AUI+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 MAX22210AUI+T reliable?
The price and inventory of MAX22210AUI+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22210AUI+T is usually 5 days.
3.What payment methods are accepted for MAX22210AUI+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22210AUI+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22210AUI+T?
MAX22210AUI+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22210AUI+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 MAX22210AUI+T?
For technical support, including MAX22210AUI+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22210AUI+T requirements.
6.How does Aetrix verify that MAX22210AUI+T is sourced from the original manufacturer or authorized distributors?
All MAX22210AUI+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 MAX22210AUI+T meets industry standards.
7.What is the process for return or replacement of MAX22210AUI+T?
All MAX22210AUI+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22210AUI+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 MAX22210AUI+T part is unused and in its original packaging.
Return procedure for MAX22210AUI+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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