STPW12PHR

STPW12 Datasheet Programmable electronic power breaker for 12 V bus Features Real-time input power sensing Input voltage range: from 10.5 V to 18 V Continuous current typ.: 1.5 A P-channel on resistance typ.: 50 m Power limit accuracy typ.: 3% Undervoltage lockout Power SO8 Adjustable power limitation PWM mode Programmable power limit masking time Programmable auto-retry delay Thermal shutdown Enable function Short-circuit current limit Operative junction temp. - 40 C to 125 C Available in power SO8 package Simplifies UL compliance and certification Applications White goods Consumer electronics Maturity status link Industrial applications STPW12 Air contidioner Device summary User interface Order code STPW12PHR Fan motor control Package Power SO8 Description The STPW12 is an integrated electronic power breaker, optimized to monitor the input power. Connected in series to the power rail, it is able to disconnect the electronic circuitry on its output if the power consumption overcomes the programmed limit. When this happens, the device automatically opens the integrated power switch and disconnects the load. The intervention of the protection is communicated to the board monitoring circuits through a signal on the fault pin. After a certain delay time, programmable by the user, the device automatically tries again to close the internal switch and re-connect the load. A dedicated monitor pin provides the user with continuous information on the monitored power. The device can be enabled/disabled through a dedicated pin, and a direct PWM mode can be implemented providing PWM pin with an external signal. DS12478 - Rev 1 - March 2018 www.st.com For further information contact your local STMicroelectronics sales office.STPW12 This approach allows the user to optimize the design power distribution system, in terms of accurate power control, choice of isolation material, safety improvement, such as: reduced risk of flammability and easier qualification and certification flow. DS12478 - Rev 1 page 2/23