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KA7553A

ON Semiconductor
Part Number KA7553A
Manufacturer ON Semiconductor
Description SMPS Controller
Published Dec 3, 2021
Detailed Description KA7552A/KA7553A SMPS Controller Features • Built-in drive circuits for direct connection power MOSFET (lO = ±1.5A) • Wi...
Datasheet PDF File KA7553A PDF File

KA7553A
KA7553A

Overview
KA7552A/KA7553A SMPS Controller Features • Built-in drive circuits for direct connection power MOSFET (lO = ±1.
5A) • Wide operating frequency range (5kHz ~ 600kHz) • Pulse by pulse over current limiting • Over load protection • On/off control by external trigger • Internal UVLO • Low standby current (typ.
90uA) • Soft start circuit Description The KA7552A/KA7553A are switching power control IC for wide operating frequency range.
The internal circuits include pulse by pulse current limiting, protection, on/off control by external trigger, low standby current, soft start, and high current totempole output for driving a POWER MOSFET.
Maximum duty of the KA7552A is 70% and the KA7553A is 46%.
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