HA16666P/FP
600kHz PWM Controlled Switching Regulator
Description
The HA16666P/FP is a voltage mode PWM (pulse width modulation) control IC for switching regulator
control. It can drive a power MOS FET efficiently on 600 kHz. Its stanby current is 0.3 mA (max), and it is
used as the primary control power supply.
Functions
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+5 V reference voltage circuit
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Triangular waveform oscillator
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PWM comparator
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Output circuit (Totem pole output)
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Overcurrent protection circuit (with one-pulselatch mode)
Undervoltage lockout protectoin circuit
Soft start and quick shutdown function
Remote control function
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Comparator with internal 1.3 V reference voltage
Features
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High-speed switching;
tr = 80 ns (15 V amplitude)
tf = 40 ns (15 V amplitude)
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Low power dissipation;
0.3 mA max in standby state
12 mA max in operation state (V
IN
= 15 V)
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Dual-slope highly accurate dead-band duty setup circuit; Setup accuracy Du = 鹵3% (max)
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Wide output pulse width control range; 0 to 75%
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HA16666FP相關型號PDF文件下載
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