Analog Devices Inc./Maxim Integrated MAX22200ETJ+T

Overview

MAX22200ETJ+T from Analog Devices is an octal 36V serial-controlled solenoid and motor driver IC featuring eight independent half-bridges, 200mΩ typical R_DS(on), 1A RMS per channel, SPI interface with daisy-chain support, and dual drive regulation (VDR/CDR). It serves as a high-integration valve/motor control solution in industrial automation systems requiring precise current/voltage control and fault diagnostics.

For engineers reviewing the MAX22200ETJ+T datasheet, MAX22200ETJ+T pinout, MAX22200ETJ+T application, or MAX22200ETJ+T equivalent, this page delivers verified specifications, validated package mapping, confirmed pin functions, real-world use cases for latched valves and brushed DC motors, and two technically documented alternative parts with explicit functional distinctions.

Technical Context

The MAX22200ETJ+T implements configurable half-bridge topology supporting low-side, high-side, parallel (2× current), and full-bridge (4× bi-stable valve or DC motor) modes. Its integrated lossless current sensing (ICS) enables closed-loop CDR with ±6% accuracy at 1A full-scale, while VDR provides programmable PWM duty-cycle control up to 5MHz SPI clock rate.

Each channel independently configures HIT current (I_HIT), HOLD current (I_HOLD), and HIT time (t_HIT) via SPI registers. Protection includes OCP (1.1A threshold), UVLO (4.0V), TSD (145°C), open-load detection, and plunger movement detection - all reported through a fault register with selective clear-on-read (MAX22200A variant).

Key Specifications

Pinout & Package

MAX22200ETJ+T is housed in a 5mm × 5mm, 32-pin TQFN package (package code T3255+8C) with exposed pad (EP/PGND) for thermal dissipation. θ_JA = 29°C/W on four-layer board.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar solenoid and motor driver applications.

Compared with MAX22200ETJ+T, MAX22200AETJ+T offers enhanced fault register semantics for safer firmware integration, while TPL7407LPGEDR provides basic switching at lower integration and zero diagnostic capability - making it suitable only for legacy-style relay boards without current control requirements.

Availability

MAX22200ETJ+T is available at Aetrix Electronics and suitable for industrial valve control, latching solenoid actuation, and brushed DC motor drive applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MAX22200ETJ+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 MAX22200ETJ+T belongs to Analog Devices' industrial interface and driver product line, designed specifically for high-reliability solenoid, valve, and small-motor control in programmable logic controllers, factory automation systems, and building management equipment.

FAQ

What is the maximum continuous output current per channel of the MAX22200ETJ+T?

The MAX22200ETJ+T supports up to 1A RMS continuous output current per channel at +25°C ambient, with derating above +70°C. This rating applies to both low-side and high-side configurations and is validated under worst-case thermal conditions using a four-layer PCB with θ_JA = 29°C/W. The device maintains this current with 200mΩ typical R_DS(on) and integrated thermal shutdown at +145°C.

Does the MAX22200ETJ+T support full-bridge motor control?

Yes, the MAX22200ETJ+T supports full-bridge configuration by pairing two half-bridges per channel. This enables driving up to four brushed DC motors or bi-stable solenoid valves. Each full-bridge uses dedicated OUTx pins and shares VM and PGND connections. The configuration is set via SPI register CFG_CH_, and timing is coordinated using TRIGA/TRIGB or software commands.

How does current drive regulation (CDR) work in the MAX22200ETJ+T?

In CDR mode, the MAX22200ETJ+T uses integrated lossless current sensing (ICS) to monitor output current in real time, comparing it against a programmable reference set by the external IREF resistor. When current deviates, the controller adjusts PWM duty cycle dynamically to maintain the target - achieving ±6% accuracy at 1A. No external sense resistor is needed, reducing BOM count and layout complexity.

What protection features are built into the MAX22200ETJ+T?

The MAX22200ETJ+T integrates overcurrent protection (OCP, 1.1A threshold), undervoltage lockout (UVLO, 4.0V), thermal shutdown (TSD, +145°C), open-load detection (OL), and detection of plunger movement (DPM). All faults are latched in the FAULT register and signaled externally via the open-drain FAULT pin, enabling immediate system-level response without polling.

Is the MAX22200ETJ+T pin-compatible with the MAX22200AETJ+T?

Yes, the MAX22200ETJ+T and MAX22200AETJ+T share identical pinout, package (32-TQFN), and electrical specifications. The only functional difference is in FAULT register behavior: MAX22200AETJ+T supports selective clear-on-read, while MAX22200ETJ+T uses standard clear-on-read. Firmware must be adapted accordingly, but PCB layout and interconnect remain unchanged.