CXMD32121/CXMD32122 is a single-channel H-bridge driver chip for DC motor solutions. The H-bridge driver section of the CXMD32121/CXMD32122 uses PMOS and NMOS power transistors with low on-resistance. The low on-resistance ensures low power loss of the chip, which makes the chip work safely for a longer time. In addition, the CXMD32121/CXMD32122 has low standby current and low quiescent operating current. These properties enable CXMD32121/CXMD32122 ease of use with toy solutions. The CXMD32121/CXMD32122 contains an over-temperature shutdown protection. When the load motor is low impedance, or the output terminal is short-circuited, the output current of the CXMD32121/CXMD32122 is enabled to rise sharply, and the internal temperature also rises sharply. When the chip temperature exceeds the maximum temperature threshold (typically 150°C), the CXMD32121/CXMD32122 shuts down all outputs, preventing potential safety hazards. Only when it is confirmed that the chip returns to a safe operating temperature, the built-in temperature hysteresis current re-controls the drive circuit.
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[ CXMD32121 ]"
