MAX22208
65V, 3.8A Quad Half H-Bridge Drivers with Integrated Current Sense
Show More
Not the part you were looking for?
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Other places you can find help
Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support PageFeatures
- Four Independent Half H-Bridge Drivers
- 65V Maximum Operating Voltage
- 0.3Ω (typ) RON (High Side + Low Side) at TA = +25°C
- Fully Independent Half-Bridge Control
- Current Rating per H-Bridge (TA = +25°C):
- IMAX = 3.8A (Impulse Current for Driving Capacitive Loads)
- IRMS = 2A
- Integrated Current Sensing (ICS) Eliminates External Bulky Resistors and Improves Efficiency
- Current-Sense Output Monitor
- Fault Indicator Pin (FAULT)
- Overcurrent Protection for Each Individual Channel (OCP)
- Undervoltage Lockout (UVLO)
- Thermal Shutdown TSD = +155°C
- 5mm x 7mm, 38-Pin TQFN and 4.4mm x 9.7mm, 38-Pin TSSOP Packages
The MAX22208 provides four individually controllable 65V, 3.8AMAX half H-bridge drivers. It can be used to drive four solenoids, two brushed DC motors, one single stepper motor, or a combination of different loads.
The power FETs have very low impedance, resulting in high driving efficiency and low heat dissipation. The typical total RON (high side plus low side) is 0.3Ω (typ).
Each half bridge can be individually pulse-width modulation (PWM)-controlled with two logic inputs (DIN_, EN_).
The MAX22208 integrates non-dissipative current sensing, which eliminates the bulky external power resistors normally required for this function, resulting in a dramatic space and power saving compared with mainstream applications based on the external sense resistor.
A current proportional to the internally-sensed load current is output to the external current-monitor pins (ISEN_). By connecting an external resistor to these pins, a voltage proportional to the motor current is generated. The voltage drop across the external resistors can be input into the controller ADC whenever the control algorithm requires the current/torque information.
The maximum output current per half H-bridge is IMAX = 3.8A and is limited by the overcurrent protection (OCP) circuit. This current can be driven for very short transients and aims to effectively drive small capacitive loads.
The maximum RMS current per H-bridge is IRMS = 2A. Since this current is limited by thermal considerations, the actual maximum RMS current depends on the thermal characteristic of the application (PCB ground planes, heatsinks, forced air ventilation, etc.).
The MAX22208 features overcurrent protection (OCP), thermal shutdown (TSD), and undervoltage lockout (UVLO). An active-low, open-drain FAULT pin is activated every time a fault condition is detected.
During TSD and UVLO, the driver outputs are three-stated until normal operating conditions are restored.
The MAX22208 is available in a small, 5mm x 7mm, 38-pin TQFN and 4.4mm x 9.7mm, 38-pin TSSOP package.
APPLICATIONS
- Brushed DC Motor Driver
- Stepper Motor Driver
- Solenoid Driver
- Latched Valves
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Other places you can find help
Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page{{modalTitle}}
{{modalDescription}}
{{dropdownTitle}}
- {{defaultSelectedText}} {{#each projectNames}}
- {{name}} {{/each}} {{#if newProjectText}}
- {{newProjectText}} {{/if}}
{{newProjectTitle}}
{{projectNameErrorText}}
MAX22208
Documentation
Filters
1 Applied
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 |
---|---|---|---|
MAX22208ATU+ | 38-LFCSP-5X7X0.75 |
|
|
MAX22208ATU+T | 38-LFCSP-5X7X0.75 |
|
|
MAX22208AUU+ | 38-TSSOP_4.4_EP-4.4_MM |
|
|
MAX22208AUU+T | 38-TSSOP_4.4_EP-4.4_MM |
|
- MAX22208ATU+
- Pin/Package Drawing
- 38-LFCSP-5X7X0.75
- Documentation
- HTML Material Declaration
- HTML Reliablity Data
- CAD Symbols, Footprints, and 3D Models
- Ultra Librarian
- SamacSys
- MAX22208ATU+T
- Pin/Package Drawing
- 38-LFCSP-5X7X0.75
- Documentation
- HTML Material Declaration
- HTML Reliablity Data
- CAD Symbols, Footprints, and 3D Models
- Ultra Librarian
- SamacSys
- MAX22208AUU+
- Pin/Package Drawing
- 38-TSSOP_4.4_EP-4.4_MM
- Documentation
- HTML Material Declaration
- HTML Reliablity Data
- CAD Symbols, Footprints, and 3D Models
- Ultra Librarian
- SamacSys
- MAX22208AUU+T
- Pin/Package Drawing
- 38-TSSOP_4.4_EP-4.4_MM
- Documentation
- HTML Material Declaration
- HTML Reliablity Data
- CAD Symbols, Footprints, and 3D Models
- Ultra Librarian
- SamacSys
Software & Part Ecosystem
Evaluation Kits 1
MAX22208EVKIT
Evaluation Kit for the MAX22208
Product Detail
The MAX22208 evaluation kit (EV kit) provides a proven design to evaluate the +65V, 3.8A quad half H-bridge MAX22208 motor drivers. The MAX22208 can drive four solenoids, two brushed DC motors, one single stepper motor, or a combination of different loads. The MAX22208 IC integrates very low impedance FETs in a quad H-bridge configuration with a typical RON (high side plus low side) of 0.3Ω. The EV kit features headers, test points, and terminal blocks to provide an interface to the MAX22208 motor drivers. The MAX22208 integrated current-sense output ISEN_ can be monitored using test points or can be connected to an external ADC using header J5. The MAX22208 EV kit operates from an input voltage of +4.5V to +65V (VM). An on-board +3.3V regulator U2 (MAX6765TTSD2+) provides a regulated +3.3V to drive the MAX22208 logic inputs. Terminal blocks J1 and J6 are installed to provide an interface for the high voltage, high current VM inputs and motor driver outputs OUT_.
Resources