KA7552A
数据手册.pdf
Fairchild
飞兆/仙童
电子元器件分类
FAIRCHILD SEMICONDUCTOR KA7552A 控制器, PWM, 30V-10V电源, 135 kHz, 16.5V/100mA输出, DIP-8
The is a PWM Controller programmable frequency up to 600kHz. The KA7552A is 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 totem pole output for driving a POWER MOSFET. When duty is maximum, the input threshold voltage of pin2 and pin8 are not same in KA7552A.
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- Built-in drive circuits for direct connection POWER MOSFET lO = ±1.5A
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- Wide operating frequency range 5 to 600kHz
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- Pulse by pulse over-current limiting
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- Overload protection
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- On/off control by external trigger
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- Internal UVLO
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- Low standby current typical 90uA
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- Soft start circuit