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MAX22205 - 7.6A High Current Single H-Bridge

General Description

The MAX22205 integrates a high current 65V, 7.6AMAX H-Bridge to drive one Brushed DC motor or one half Stepper motor.

The H-Bridge FETs feature very low impedance, resulting in high driving efficiency and low heat.

The typical total RON (high-side + low-side) is 0.15Ω.

Key Features

  • an accurate optional Current Drive Regulation (CDR), which can be used to limit the start up current of a Brushed DC motor or control the phase current for stepper operation. The bridge output current is sensed by a non-dissipative Integrated Current Sensing (ICS) and it is then compared with the desired threshold current. As soon as the bridge current exceeds the threshold (ITRIP), the device enforces the decay for a fixed OFFtime (tOFF). The non-dissipative ICS eliminates the bulky external po.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MAX22205 65V, 7.6A High Current Single H-Bridge with Integrated Current-Sense General Description The MAX22205 integrates a high current 65V, 7.6AMAX H-Bridge to drive one Brushed DC motor or one half Stepper motor. The H-Bridge FETs feature very low impedance, resulting in high driving efficiency and low heat. The typical total RON (high-side + low-side) is 0.15Ω. The HBridge can be PWM controlled by two logic inputs (DINA, DINB). A third Enable (EN) logic input can be used to configure the outputs to high impedance for coasting the motor. The MAX22205 features an accurate optional Current Drive Regulation (CDR), which can be used to limit the start up current of a Brushed DC motor or control the phase current for stepper operation.