SC2608B Semtech Corporation, SC2608B Datasheet
SC2608B
Related parts for SC2608B
SC2608B Summary of contents
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... Current limit is implemented by sensing the voltage drop across the bottom MOSFET R The SC2608B operates at a fixed frequency of 250kHz providing an optimum compromise between efficiency , external component size, and cost. SC2608B has a thermal protection circuit, which is ...
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... SC2608B ...
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... < > SC2608B ...
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... SC2608B www.semtech.com ...
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... PWM PWM VCC VCC - - OCP & OCP & UVLO UVLO OCP OCP COMP/SS COMP/SS Figure 3 5 SC2608B VCC VCC LEVEL LEVEL SHIFT SHIFT NON-OVERLAP NON-OVERLAP Q Q TIMING TIMING 0 0 PHASE PHASE www.semtech.com BST BST DH DH PHASE ...
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... OCP Hiccup OCP Hiccup OCP Hiccup OCP Hiccup In the event that an overcurrent is detected, the SC2608B latches the fault and begins a hiccup cycle. Switching is immediately stopped, and the drivers are set to a tristate condition (Both DH and DL are low). COMP is slowly discharged to 300mV with an internal 4uA current source, providing a long cooldown time to keep power dissipation low in the event of a continuous dead short ...
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... COMP pin is pulled low by an external device (such as an open-drain logic gate used for system shutdown), and SENSE is high(above 300mV) while COMP is low, then the SC2608B turns on the low side FET to discharge the output before changing to shutdown or soft-start mode. The low www.DataSheet4U.com ...
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... C π • SC2608B soft start time is determined by the www.DataSheet4U.com compensation capacitor. Capacitance can be adjusted to satisfy the soft start requirement. (6) The final step is to generate the Bode plot by using the simulation model in Fig using the equations pro- vided here with Mathcad. The phase margin can then be checked using the Bode plot ...
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... SC2608B www.semtech.com ...
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... SC2608B 1.8VOUT/24A R3 1.27k Sense R5 1k www.semtech.com ...
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... Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 11 SC2608B ...