UA78M08CKCS

Introduction

The UA78M08CKCS is a linear voltage regulator designed to deliver a regulated output of 8 V with a maximum load current of 600 mA. It is manufactured by Texas Instruments and is compliant with the OFX-7 / UL-94V-0 fire safety rating. It is a general purpose device and can be used for various applications such as voltage stabilization, voltage conversion, voltage isolation and noise filtering.

Applications

The UA78M08CKCS is suitable for use in a wide range of applications. It can be used in switching power supplies, UPSs, DC/DC converters, battery-powered equipment, automotive applications and other power electronic applications. It is also well-suited for providing regulated voltage from an unregulated or variable input source. It can be used in applications such as TV sets, laptops, home appliances, industrial controls, medical equipment, precision devices and more.

Working Principle

The UA78M08CKCS is a three-terminal shunt regulator. It operates in a linear region with the output voltage determined by the output current. The input voltage is applied to the input pin, while the output voltage is sourced through the output pin. The third pin, the adjust pin, is used to adjust the output voltage by varying the terminal voltage with a feedback loop. The output voltage is set by a control resistor connected between the output and adjust pins. The current through the control resistor, or sensing resistor, is set by the difference between the output and adjust pin voltages. When the output voltage rises above the desired output, the feedback loop reduces the current through the sensing resistor to reduce the voltage on the adjust pin, which in turn reduces the output voltage.

Features

• Operating input voltage range of 9V - 40.5V
• Long line and load regulation
• Low quiescent current
• Thermal shutdown protection
• Output current of up to 600 mA
• High power dissipation capability

Conclusion

The UA78M08CKCS is an advanced linear voltage regulator that offers excellent performance for a wide range of applications. It is a general purpose device with features such as adjustable output voltage, low quiescent current, long line and load regulation and high power dissipation capability. It can be used in a variety of systems to provide a regulated output voltage.