MAX22217
Quad Smart Serial-Controlled Solenoid and Motor Driver with Advanced Diagnostic
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Features
- Four Serial Controlled 36V Half Bridges
- 1.7A DC (TA = 25°C) and 3.2A Full-Scale Current Capability (MAX22216)
- 0.55A DC (TA = 25°C) and 1A Full-Scale Current Capability (MAX22217)
- Low RON for High Efficiency
- High Flexibility:
- Independent Channel Setting
- High-Side/Low-Side/Bridge-Tied Load Configuration/Parallel Mode Supported
- Advanced Control Methods
- Voltage/Current Drive Regulation
- Two Levels Sequencer for Power Saving
- DC-Motor Drive with Current Limiter
- Dithering Function
- Ramp up/down Control
- Demagnetization Voltage Control
- Integrated Current Sense
- Diagnostic Functions:
- Reaction and Travel Time Measurement
- Detection of Plunger Movements
- Open-Load Detection
- Inductance Measurement
- Digital Current Sense Monitor
- Full Set of Protections
- Overcurrent Protection
- Thermal Protections
- Undervoltage Lockout
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The MAX22216/MAX22217 integrate four programmable 36V half-bridges. It is primarily intended to drive inductive loads such as on-off solenoid valves, DC motors, proportional valves, bi-stable valves, relays, etc. The MAX22216 is capable of up to 3.2AFS per half-bridge, whereas the MAX22217 is capable of up to 1AFS per half-bridge. The MAX22216/MAX22217 operate from -40°C to +125°C ambient temperature.
The MAX22216/MAX22217 half-bridges support two different use cases. In the first case, configuration settings can be entered through a serial peripheral interface (SPI) and can be changed at any time. Alternatively, settings can be stored in one-time programmable (OTP) registers, which are loaded at power-up. This enables stand-alone operations. Registers are user-programmable. The OTP writing procedure must be executed in a factory under well-controlled temperature and voltage conditions.
High-side/low-side single-ended drive operations and bridge-tied load (BTL) configurations are supported. Channel parallelization is also supported. Voltage control, current control, and mixed schemes are supported.
In voltage drive regulation mode (VDR mode), the half-bridge output voltage is controlled. Supply variations are internally compensated.
In current drive regulation mode (CDR mode), the half-bridge output current is controlled. The current is internally sensed and fed back to the controller for accurate closed-loop regulation. Proportional and integral gains can be configured to optimize steady-state errors and dynamic performance.
The MAX22216/MAX22217 integrate functions aimed to optimize solenoid and DC motor drive control. These include a two-level sequencer for power saving, drive signal ramp control (RAMP) for noise reduction, a dither function (DITH) to counteract the effects of static friction and hysteresis, a fast demagnetization feature (DC_H2L) to shorten on-off cycles, and a DC-Motor current limiter for limiting inrush and stall currents.
Advanced diagnostic functions are available to improve system reliability and enable predictive maintenance. These include the detection of plunger movement (DPM), inductance measurement, travel time measurement, open-load detection (OL), and real-time current monitoring through a serial Interface.
The MAX22216/MAX22217 feature a full set of protection circuits, including overcurrent protection (OCP), overtemperature protection (OVT), and undervoltage lockout (UVM). A fault indicator pin is asserted whenever faults are detected.
The MAX22216/MAX22217 are offered in TQFN32 5mm x 5mm packages.
APPLICATIONS
- Solenoid On-Off Valves and Relays
- DC Motors
- Proportional Valves
- Bi-Stable Latching Solenoid Valves
- Switching Driver with Real-Time Current Measurement
- Digital Output Interface
- Electromechanical Motor Brake
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MAX22217
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Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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| MAX22217ATJY+ |
32-LFCSP_SS-5X5X0.75
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| MAX22217ATJY+T |
32-LFCSP_SS-5X5X0.75
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- MAX22217ATJY+
- Pin/Package Drawing
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32-LFCSP_SS-5X5X0.75
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- MAX22217ATJY+T
- Pin/Package Drawing
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32-LFCSP_SS-5X5X0.75
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Software & Part Ecosystem
Evaluation Kits 1
MAX22216EVKIT
Evaluation Board for Quad Smart Serial-Controlled Driver
Features and Benefits
- Quad smart serial-controlled 36V half bridges up to 1.7A/3.2A full scale
- Supply voltage 4.5V to 36V DC
- SPI and OTP registers
- Highly flexible control methods (e.g. Bridge-Tied Load)
- Two-level current/voltage sequencer
- Detection of plunger movement
- Power-saving features
- Advanced diagnostics
- Full set of protections
Product Detail
The MAX22216-EVAL allows evaluation of the MAX22216 in combination with the TRINAMIC evaluation board system or as stand-alone-board. It uses the standard schematic and offers several options to test different modes of operation. The MAX22216-EVAL can also be used in the evaluation of the MAX22217 by setting SNSF[1:0] = "10" for all channels while in use.
APPLICATIONS
- Solenoid Valves and Relays
- Real-Time Current Measurement
- Proportional Valves
- DC Motors
- Digital-Output Interface
- Bi-stable Latching Solenoid Valves
Resources
