产品概述
The KA3843B is a fixed frequency current-mode PWM Controller for off-line and DC-to-DC converter applications with minimum external components. This integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. The KA3843B is 8.5V (on) and 7.9V (off) and it can operate within 100% duty cycle.
- Low start up current
- Maximum duty clamp
- UVLO with hysteresis
应用
消费电子产品
产品信息
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- 15V
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- 5V
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- 200mA
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- 12V
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- 25V
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- DIP
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- 8引脚
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- 500kHz
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- 0°C
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- 70°C
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- -
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- -
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