My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX22211ATJ+T
- Part No.:
- MAX22211ATJ+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX22211ATJ+T.pdf
- Description:
- 36V , 3.8A DUAL BRUSHED/SINGLE S
- Quantity:
- Payment:
- Shipping:
Inventory:4,407
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX22211ATJ+T from Analog Devices is a dual-channel 36V, 3.8A H-bridge motor driver IC designed for precise control of two brushed DC motors or one bipolar stepper motor. It features integrated current drive regulation (CDR), non-dissipative current sensing (ICS), four decay modes (Slow, Fast, and two Mixed), and a typical total RON of 0.25Ω per bridge - enabling high-efficiency, low-heat operation in compact industrial motion systems.
For engineers reviewing the MAX22211ATJ+T datasheet, MAX22211ATJ+T pinout, MAX22211ATJ+T application, or MAX22211ATJ+T equivalent, this page delivers verified technical context, validated pin functions, confirmed thermal and current specifications, and real-world motor-control use cases - all grounded in the official MAX22211 datasheet Rev 1 (11/23) and Analog Devices' TQFN32 package documentation.
Technical Context
The MAX22211ATJ+T implements two independent full H-bridges with gate drivers, charge-pump voltage generation (VCP = VM + 2.7V), and integrated 1.8V LDO (VDD). Each bridge supports three-input PWM control (DIN1/DIN2/EN) and programmable current regulation via external resistors on REFA/REFB pins, setting ITRIP thresholds up to 3.8A.
Its non-dissipative current sensing mirrors phase currents to ISENA/ISENB pins with scalable output (KISEN = 7500 A/A at HFS = low), while CDR logic enforces fixed tOFF = 16–24μs decay upon overcurrent - with decay mode selected via DECAY1/DECAY2 inputs and accuracy enhanced by HFS pin scaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Operating Voltage | +36V supply (VM); absolute max +42V - supports 24V industrial rails with headroom for inductive kickback. |
| Total RON (HS + LS) | 0.25Ω typical at TA = 25°C - enables ≥90% efficiency at 2A RMS per bridge on 4-layer PCBs. |
| Current Regulation Range | Configurable ITRIP up to 3.8A via REFA/REFB resistors; limited by OCP - allows startup surge limiting and stepper phase-current shaping. |
| RMS Current Rating | 2A RMS per H-bridge recommended on standard 4-layer PCB - defined by thermal resistance θJA = 29°C/W. |
| Current Sense Bandwidth | 400kHz small-signal -3dB bandwidth - sufficient for real-time closed-loop torque/current feedback in servo-grade applications. |
| Fault Protection | OCP (3.8A), UVLO (VM rising threshold 4.0V ±0.15V), TSD (165°C ±5°C) with 20°C hysteresis - ensures robust operation under overload, brownout, or thermal stress. |
| Sleep Mode Current | 4–11μA quiescent draw when SLEEP = low - enables battery-powered or energy-sensitive portable motor systems. |
Pinout & Package
MAX22211ATJ+T is packaged in a 32-pin TQFN (5mm × 5mm, exposed pad), designated "T3255-8C" per Maxim/Analog Devices package drawings. Pin functions are validated per official TQFN top-view layout and Pin Description table (Rev 1, pp. 11–13).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1A, OUT2A, OUT1B, OUT2B | H-Bridge Power Outputs | Drive motor windings; each pair forms one full bridge - OUT1A/OUT2A = Bridge A, OUT1B/OUT2B = Bridge B. |
| DIN1A, DIN2A, ENA / DIN1B, DIN2B, ENB | PWM Control Inputs | Three-input logic per bridge (forward/reverse/brake); EN_ enables/disables driver stage with 0.4μs enable time. |
| REFA, REFB | Current Threshold Set Inputs | Analog inputs tied to GND via resistor; set independent ITRIP for Bridge A/B - 12kΩ–72kΩ yields 0.55A–3.8A range. |
| ISENA, ISENB | Current Mirror Outputs | Provide proportional current (KISEN = 7500 A/A) for ADC interfacing - requires external RISEN to generate voltage feedback. |
| CDRA, CDRB | CDR Activity Indicators | Open-drain outputs asserted during current-regulation decay - used for external timing synchronization or fault logging. |
| FAULT | Active-Low Fault Flag | Open-drain output pulled low on OCP, UVLO, or TSD - requires external pull-up; driver enters three-state during fault recovery. |
| SLEEP | Low-Power Enable | Active-low input; places device in 4–11μA sleep state with all outputs three-stated and charge pump disabled. |
| VCP, CP1, CP2 | Charge-Pump Circuit | Generates gate-drive voltage above VM; CP1/CP2 require 22nF flying capacitor; VCP supplies high-side FET drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Non-dissipative Integrated Current Sensing (ICS) | Eliminates external shunt resistors - reduces board area >30%, removes power loss up to 1W per channel at 3A, and improves thermal margin. |
| Four Configurable Decay Modes | Slow, Fast, and two Mixed Decays selected via DECAY1/DECAY2 - enables optimal torque ripple and efficiency tuning across speed/load conditions. |
| HFS Pin for Low-Current Accuracy | HFS = high halves KISEN to 3840 A/A and scales ITRIP range downward - improves current regulation linearity below 1A for microstepping precision. |
| Independent Bridge Control & Protection | OCP, UVLO, and TSD operate per-channel; FAULT pin aggregates all faults - supports asymmetric motor loads and partial-system diagnostics. |
| TQFN32 Thermal Performance | θJA = 29°C/W on 4-layer board; EP pad must be soldered to solid ground plane - enables 2A RMS per bridge without forced air. |
Applications
| Brushed DC Motor Control | Stepper Motor Drive |
|---|---|
|
Use Scenario: Precision speed and direction control of 24V DC gearmotors in automated valves and linear actuators. IC Role / Device Role / Timing Role: Dual H-bridge driver executing PWM-based commutation; CDR limits inrush during valve actuation. Use Value: 0.25Ω RON minimizes heat rise in sealed enclosures; ISENA/ISENB provide real-time current feedback for stall detection. |
Use Scenario: Bipolar stepper motor control in lab automation stages requiring microstepping and torque consistency. IC Role / Device Role / Timing Role: Single-chip dual-bridge solution driving both phases; HFS pin enables accurate low-current regulation for 1/16-step resolution. Use Value: Four decay modes reduce vibration at resonance frequencies; CDRB monitoring allows dynamic current adaptation per step. |
| Solenoid & Latched Valve Driver | Industrial Motion Subsystem |
|
Use Scenario: Driving high-inductance solenoids in fluid control manifolds with controlled turn-on/turn-off energy. IC Role / Device Role / Timing Role: High-voltage H-bridge delivering 36V pulses; Slow Decay mode manages back-EMF during de-energization. Use Value: 3.8A peak current supports fast solenoid response; FAULT pin signals coil open-circuit or short-circuit failure. |
Use Scenario: Compact motor control module in collaborative robot joints where space, thermal density, and diagnostic capability are critical. IC Role / Device Role / Timing Role: Primary motor interface IC with integrated current sensing, protection, and sleep mode for power cycling. Use Value: Sleep current <11μA extends battery life; CDRA/CDRB enable host MCU to correlate motion commands with CDR activity timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8876PWPR (TI) | Single 36V, 3.7A H-bridge; requires two units for dual drive; no integrated ICS or CDR - needs external sense resistor and regulation logic. | Lacks current mirroring and decay-mode flexibility; suitable only when discrete control per bridge is preferred. | Choose DRV8876PWPR if board space allows dual ICs and external current sensing is acceptable for cost-driven designs. |
| STSPIN820TR (STMicro) | 36V, 3.2A dual H-bridge with embedded current regulation but no ISEN analog mirror outputs - only digital CDR flag available. | Supports stepper microstepping but lacks analog current feedback for torque-adaptive algorithms. | Choose STSPIN820TR when digital fault signaling suffices and analog current monitoring is not required for closed-loop control. |
Compared with DRV8876PWPR and STSPIN820TR, the MAX22211ATJ+T uniquely integrates non-dissipative current sensing, dual analog ISEN outputs, four decay modes, and per-bridge ITRIP programming - making it the only option supporting high-fidelity torque feedback and adaptive decay in a single 5mm × 5mm package.
Availability
MAX22211ATJ+T is available at Aetrix Electronics and suitable for industrial motion control, automated valve actuation, and collaborative robotics requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX22211ATJ+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, headquartered in Wilmington, MA.
The MAX22211 belongs to Analog Devices' precision motor driver product line, engineered specifically for space-constrained, thermally demanding industrial and robotic motion systems requiring integrated current regulation and analog feedback.
FAQ
What is the maximum continuous current per H-bridge for MAX22211ATJ+T on a standard PCB?
The MAX22211ATJ+T supports a recommended maximum RMS current of 2A per H-bridge when mounted on a standard four-layer PCB, based on thermal resistance θJA = 29°C/W and junction temperature limit of +165°C. This rating assumes proper thermal pad soldering and adequate copper area - exceeding 2A RMS requires derating or enhanced cooling.
How does the HFS pin affect current regulation accuracy in MAX22211ATJ+T?
In MAX22211ATJ+T, the HFS pin scales the current-sense gain and ITRIP threshold range: when HFS = low, KISEN = 7500 A/A and ITRIP covers 1.1–3.8A; when HFS = high, KISEN = 3840 A/A and ITRIP shifts to 0.25–1.5A - improving regulation linearity and ADC utilization in low-current microstepping applications.
Can MAX22211ATJ+T drive a unipolar stepper motor?
No - the MAX22211ATJ+T is designed exclusively for bipolar stepper motors or dual brushed DC motors. Its dual full-H-bridge topology provides bidirectional current control per winding, which is incompatible with unipolar stepper configurations requiring center-tapped coils and separate phase switching.
What external components are mandatory for stable operation of MAX22211ATJ+T?
MAX22211ATJ+T requires: (1) 1μF ceramic + 10μF electrolytic capacitors from VM to AGND/PGND; (2) 2.2μF capacitor on VDD; (3) 1μF capacitor between VCP and VM; (4) 22nF capacitor between CP1 and CP2; and (5) pull-up resistor on FAULT. REFA/REFB resistors and ISEN resistors are application-dependent but necessary for current regulation and monitoring.
Does MAX22211ATJ+T support synchronous rectification or adaptive decay timing?
No - MAX22211ATJ+T implements fixed OFF-time (tOFF = 16–24μs) decay control during current regulation events. It supports four preset decay modes (Slow, Fast, Mixed1, Mixed2) selected via DECAY1/DECAY2 inputs, but does not feature variable tOFF, synchronous rectification, or real-time adaptive timing adjustment.
MAX22211ATJ+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 (4)
- Interface:
- PWM
- Technology:
- NMOS
- Step Resolution:
- -
- 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:
- 32-TQFN (5x5)
MAX22211ATJ+T FAQ
1.How can I place an order for MAX22211ATJ+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22211ATJ+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 MAX22211ATJ+T reliable?
The price and inventory of MAX22211ATJ+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22211ATJ+T is usually 5 days.
3.What payment methods are accepted for MAX22211ATJ+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22211ATJ+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22211ATJ+T?
MAX22211ATJ+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22211ATJ+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 MAX22211ATJ+T?
For technical support, including MAX22211ATJ+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22211ATJ+T requirements.
6.How does Aetrix verify that MAX22211ATJ+T is sourced from the original manufacturer or authorized distributors?
All MAX22211ATJ+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 MAX22211ATJ+T meets industry standards.
7.What is the process for return or replacement of MAX22211ATJ+T?
All MAX22211ATJ+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22211ATJ+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 MAX22211ATJ+T part is unused and in its original packaging.
Return procedure for MAX22211ATJ+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22211ATJ+T Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
