KITMMA955XLEVM

Series:	--
Part Status:	Obsolete
Sensor Type:	Accelerometer, 3 Axis
Sensing Range:	±2g, 4g, 8g
Interface:	I²C
Sensitivity:	0.061mg/LSB, 0.122mg/LSB, 0.244mg/LSB
Voltage - Supply:	--
Embedded:	No
Supplied Contents:	Board(s), Cable(s)
Utilized IC / Part:	MMA955XL

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Introduction

KITMMA955XLEVM is a high-performance MOSFET drive and sensing evaluation board implemented by Microchip Technology Inc. It is used to evaluate the performance of the company’s own sensor products. This evaluation board provides adjustable gate drive current, adjustable sensing/drive current, and adjustable gate voltage control, making it especially suitable for driving the production of MOSFETs and other discrete power components.

Application Field

KITMMA955XLEVM is designed for system designers who need to evaluate and troubleshoot their system designs or switchmode power supplies. The evaluation board features fast-charging, fast-discharging and bi-directional current sensing capabilities. KITMMA955XLEVM also can be applied to automotive applications, such as electric windows, electric motor drivers, and fuel pumps. By using this evaluation board, system designers can simulate precision current-sensing and over-current protection circuits.

Working Principle

The KITMMA955XLEVM is based on the Microchip MCP19119/20, a high-performance integrated MOSFET drive and sensing device. It offers a wide drive range and low drive current, making it the perfect choice for a range of power-switch applications. The evaluation board is operated via a serial interface and includes a high-power MOSFET, comparator, Analog-to-Digital Converter (ADC), and power components.The MCP19119/20 offers a quiescent current of just 8mA and provides a powerful two- channel MOSFET driver that can deliver up to 45A of pulsed gate current to drive higher power N-channel MOSFETs. The driver features a flexible gate voltage range and has programmable slew rate control that can be adjusted for different load current levels.The sensing circuit uses differential sensing with a high common mode rejection ratio. This circuit provides accurate over-current protection, current-limit, and fault indication. The integrated ADC allows for precise measurements of the load current.The evaluation board also has two external connectors that allow for the connection of an external dc-supply or other monitoring devices.

Conclusion

KITMMA955XLEVM is an advanced and powerful MOSFET drive and sensing evaluation board from Microchip. It can be used to evaluate and troubleshoot system designs or switchmode power supplies, as well as automotive applications, such as electric windows, electric motor drivers, and fuel pumps. The evaluation board is based on the MCP19119/20 integrated MOSFET drive and sensing device and contains all the necessary hardware for getting the system up and running. Through its high-power MOSFET, comparator, ADC, and power components, the KITMMA955XLEVM is an incredibly useful tool for designers who need precise current-sensing and over-current protection.

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