Electronic Products & Technology

Unidirectional power switch isolates terminals when fault occurs

Stephen Law   

Electronics Semiconductors power switch power switch Undervoltage Undervoltage unidirectional unidirectional

NXP NX30P0121UK advanced 3A unidirectional power switch includes Undervoltage Lockout (UVLO), Overvoltage Lockout (OVLO) in VOUT, OVLO adjustable pin and over-temperature protection circuits. Device automatically isolates the power switch terminals when a fault condition occurs. Both VIN and VOUT pins have 29V tolerance in shutdown mode. Device has a default internal 14.5V overvoltage protection threshold in VOUT and adjustable OVP threshold by resistor divider from VOUT. ISNS pin is current source output proportional to input current from VIN to VOUT when device is enabled. Device is enabled by external EN pin. When EN pin is driven LOW, device is in shutdown mode where all internal circuitries are off and OVP switch is off.


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