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LT6109 Simplified DC Motor Torque Control

Simplified DC Motor Torque Control

The LT6109 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and two comparators. Two versions of the LT6109 are available. The LT6109-1 has the comparators connected in opposing polarity and the LT6109-2 has the comparators connected in the same polarity. In addition, the current sense amplifier and comparator outputs are directly accessible. The amplifier gain and comparator trip points are configured by external resistors.