MAX22203-EVKIT

Evaluation kit for MAX22203 DC-Motor driver (2A/65V)

The MAX22203-EVKIT provides a proven design to evaluate the +65V, 3.8A Dual H-Bridge MAX22203 motor driver. The MAX22203 can drive two brushed DC motors or single stepper motor. The MAX22203 IC integrates very low impedance FETs in a dual H-Bridge configuration with a typical RON (HS+LS) of 0,3Ω. The EV kit features headers, test points, and terminal blocks to provide an interface to the MAX22203 motor driver. The MAX22203 integrated current-sense output ISENA and ISENB can be monitored using test points or can be connected to an external ADC using header J4. The MAX22203 features embedded current-drive regulation (CDR) with adjustable chopping current (I_TRIP) and adjustable current-limit off-time (t_OFF). The  MAX22203-EVKIT operates from an input voltage of +4.5V to +65V (V_M). An on board +3.3V regulator U2 (MAX6765TTSD2+) provides a regulated +3.3V to drive the MAX22203 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 OUT1_ and OUT2_.

Features and Benefits

• Easy Evaluation of the MAX22203
• Adjustable t_OFF Time Using an On-Board Potentiometer
• Configurable Current Drive Regulation (CDR)
• On-board +3.3V Regulator to Drive MAX22203 Logic Inputs
• Test Points and Headers to Interface with MAX22203 Logic Inputs and Current-Sense Outputs
• Fully Assembled and Tested
• Proven PCB Layout