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Quad Smart Serial-Controlled Solenoid and
Motor Driver with Advanced Diagnostic
MAX22216/MAX22217
General Description
circuits, including overcurrent protection (OCP), overtem-
perature protection (OVT), and undervoltage lockout
(UVM). A fault indicator pin is asserted whenever faults
are detected.
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, propor-
tional valves, bi-stable valves, relays, etc. The MAX22216
The MAX22216/MAX22217 are offered in TQFN32 5mm x
5mm packages.
is capable of up to 3.2A
per half-bridge, whereas
FS
the MAX22217 is capable of up to 1A
per half-bridge.
FS
The MAX22216/MAX22217 operate from -40°C to +125°C
ambient temperature.
Applications
● Solenoid On-Off Valves and Relays
The MAX22216/MAX22217 half-bridges support two dif-
ferent 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.
● DC Motors
● Proportional Valves
● Bi-Stable Latching Solenoid Valves
● Switching Driver with Real-Time Current Measurement
● Digital Output Interface
Benefits and Features
● Four Serial Controlled 36V Half Bridges
• 1.7A DC (T = 25°C) and 3.2A Full-Scale Current
Capability (MAX22216)
• 0.55A DC (T = 25°C) and 1A Full-Scale Current
A
High-side/low-side single-ended drive operations and
bridge-tied load (BTL) configurations are supported.
Channel parallelization is also supported.
A
Capability (MAX22217)
Voltage control, current control, and mixed schemes are
supported.
● Low R
● High Flexibility:
for High Efficiency
ON
• Independent Channel Setting
• High-Side/Low-Side/Bridge-Tied Load
Configuration/Parallel Mode Supported
In voltage drive regulation mode (VDR mode), the half-
bridge output voltage is controlled. Supply variations are
internally compensated.
● Advanced Control Methods
• Voltage/Current Drive Regulation
• Two Levels Sequencer for Power Saving
• DC-Motor Drive with Current Limiter
• Dithering Function
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.
• Ramp up/down Control
• Demagnetization Voltage Control
• Integrated Current Sense
The MAX22216/MAX22217 integrate functions aimed to
optimize solenoid and DC motor drive control. These in-
clude 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 hys-
teresis, a fast demagnetization feature (DC_H2L) to short-
en on-off cycles, and a DC-Motor current limiter for limiting
inrush and stall currents.
● 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
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
19-101721; Rev 0; 9/23
Ordering Information appears at end of data sheet.
© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2023 Analog Devices, Inc. All rights reserved.
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