PEMH7,115

PEMH7,115 is a pre-biased BJT (Bipolar Junction Transistor) array integrated circuit that can be used in electronic devices. The I.C is manufactured by Nantian Electronics and its package type is DIP-8. This article will discuss the application areas, working principles, and pinout of PEMH7,115.

Application Field

The PEMH7,115 is mainly used in amplifier circuits, active filters and signal switching applications. It is commonly used in applications with high input impedance such as those using operational amplifiers like the TL082. It can also be used in audio signal switching applications, such as in the design of reverberation systems.The pre-biased circuit design of PEMH7,115 enables it to be used in power conversion applications like AC/DC converters, DC/DC converters, and voltage control circuits. The high-current gain of the IC also makes it suitable for use in low power signal transmission applications like meter amplifiers and sample-and-hold circuits.

Working Principle

PEMH7,115 is a pre-biased 7-stage BJT array integrated circuit manufactured in a DIP-8 package. The IC is designed to be used in preamplifier and signal switching applications. The transistors are connected in a DA (Darlington Array) structure, with each of the seven transistors having its own separate collector, emitter, and base terminal. Utilizing this configuration, the collector current is effectively amplified from the initial input current. The Darlington Array structure also provides a much higher current gain than would be achieved by connecting the transistors in parallel or in series.The IC includes two additional components: an enable pin that controls the power supply, and a feedback pin that provides feedback to the IC. When the enable pin is brought to ground, the IC is disabled and no current is drawn from the power supply. While the feedback pin is used to regulate the currents flowing through the transistors.

Pinout

The PEMH7,115 has two distinct outputs and two inputs as well as the standard power supply terminals. The two outputs can be used to drive connected circuits and the inputs can be used to provide feedback or to limit the current or power drawn from the power supply. The PEMH7,115 has the following pinout:

• Collector 0 - This is the collector for the first transistor in the array.
• Collector 1 - This is the collector for the second transistor in the array.
• Emitter 0 - This is the emitter for the first transistor in the array.
• Emitter 1 - This is the emitter for the second transistor in the array.
• Base 0 - This is the base for the first transistor in the array.
• Base 1 - This is the base for the second transistor in the array.
• Enable - This is the enable pin, used to switch the IC on and off.
• Feedback - This is the feedback pin, used to regulate the current through the circuit.
• VCC/GND- These are the power supply terminals, used to provide the necessary power for the circuit.

Conclusion

The PEMH7,115 is a pre-biased 7-stage BJT array IC manufactured in a DIP-8 package. It is mainly used in amplifier circuits, active filters, and signal switching applications. The IC also includes two additional components: an enable pin and a feedback pin. The IC has two separate outputs and two inputs and the power supply terminals. This article has discussed the application, working principles, and pinout of the PEMH7,115 pre-biased BJT array IC. The IC offers many advantages such as its high-current gain, high-input impedance, and its ability to be used in power conversion applications.

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