L604C

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Transistor Type:	8 NPN Darlington
Current - Collector (Ic) (Max):	400mA
Voltage - Collector Emitter Breakdown (Max):	90V
Vce Saturation (Max) @ Ib, Ic:	2V @ 500µA, 300mA
Current - Collector Cutoff (Max):	--
DC Current Gain (hFE) (Min) @ Ic, Vce:	--
Power - Max:	1.8W
Frequency - Transition:	--
Operating Temperature:	-25°C ~ 150°C (TJ)
Package / Case:	--

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L604C Application Field and Working Principle

The L604C is a versatile, affordable and reliable bipolar junction transistor (BJT) array. It is a 4-bit, high-speed integrated circuit (IC) device developed and manufactured by STMicroelectronics, a leading integrated circuit supplier. The L604C offers power efficiency, flexibility and compatibility with digital circuitry. It can support several different operating conditions including low power, moderate power and high power for a wide range of applications.The main application fields for the L604C are in telecommunication, medical, automotive and industrial systems. It can also be used in power amplifiers which require a high speed, high power and low noise operation. The L604C can also be used for voltage regulating and for other low power applications. In addition, this device supports space language, a feature that allows for easy memory access and data manipulation.The L604C is a four-bit, high-speed integrated circuit device. The L604C consists of four equal parts, each with its own unique biasing requirements. Each of these four parts consists of one bipolar junction transistor (BJT), two resistors and two capacitors. The BJT is the active element in the circuit and is responsible for providing the necessary switching current. The resistors and capacitors serve as the base current sources, which are necessary to bias the heavily doped collector to emitters.The four parts of the L604C function independently to provide four separate, digitally-controlled switches. Each part can be operated in either of two modes: Current Mirror Mode (CMM) and Voltage Sense Mode (VSM). In CMM, the base of the BJT is connected to an external current source, and this current is used as a reference for the switching operation. In VSM, the base of the BJT is connected to a voltage reference, and this voltage is used as a reference for the switching operation.In order to achieve maximum switching performance, the L604C must be properly biasing. This can be done using a BJT biasing network. The L604C is capable of operating in either positive voltage mode (non-inverted) or negative voltage mode (inverted). The biasing network can be configured to suit the specific requirements of the application.The L604C is a high-performance and cost-effective solution for a wide range of applications. It offers excellent performance, reliable operation and simplified biasing, making it an ideal choice for different types of design. With its ability to switch multiple channels, high speed and power efficiency, the L604C is an attractive solution for telecommunication, medical, automotive and industrial systems.

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