データシートサーチシステム |
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KA3501 データシート(PDF) 1 Page - Fairchild Semiconductor |
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KA3501 データシート(HTML) 1 Page - Fairchild Semiconductor |
1 / 6 page ©2002 Fairchild Semiconductor Corporation www.fairchildsemi.com Rev. 1.0.2 Features • Complete House Keeping Circuit • Few External Components • Positive Voltage Protection • Negative Voltage Protection • High Current Drive Output for SCR • Precision Voltage Reference for 5V/12V Outputs • Power Good Signal Generator with Hysteresis Description The KA3501 is complete housekeeping circuits for use in the secondary side of SMPS(Switched Mode Power Supply). This IC(Integrated Circuit) contains a precision voltage reference, protection circuits and a power good signal generator. It also has a high current drive output for use in conjunction with an external "crowbar" SCR. The reference voltage is trimmed to ±2% for correct output voltages(+5V/ +12V) and power good signal generator is to monitor the voltage level of power good supply for safe operation in a microprocessor circuit. Using the KA3501 requires few external components to accomplish a complete housekeeping circuit for SMPS(Switched Mode Power Supply). The KA3501 is available in an 14-pin DIP. Internal Block Diagram Positive Voltage Protection Negative Voltage Protection +5V Detecting COMP VCC Detecting COMP lchg START UP INTERNAL BIAS +2.5V REFERENCE VOLTAGE 4 7 8 11 12 10 13 1 3 9 2 14 6 5 VCC1(+5V) VCC Vin1 PG Ve Vin2 GATE Feedback Vref VCC2(+12V) Vcont GND Td Timing KA3501 PC SMPS Supervisory IC 14-DIP 1 |
同様の部品番号 - KA3501 |
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同様の説明 - KA3501 |
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