Allicdata Part #: | 296-11281-5-ND |
Manufacturer Part#: |
UC3842D8 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG CTRLR PWM CM 8SOIC |
More Detail: | Boost, Buck, Buck-Boost, Flyback, Forward Regulato... |
DataSheet: | UC3842D8 Datasheet/PDF |
Quantity: | 1959 |
Specifications
Control Features: | Frequency Control |
Operating Temperature: | 0°C ~ 70°C (TA) |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Supplier Device Package: | 8-SOIC |
Base Part Number: | UC3842 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Output Type: | Transistor Driver |
Function: | Step-Up, Step-Down, Step-Up/Step-Down |
Output Configuration: | Positive |
Topology: | Boost, Buck, Buck-Boost, Flyback, Forward |
Number of Outputs: | 1 |
Output Phases: | 1 |
Voltage - Supply (Vcc/Vdd): | 10 V ~ 30 V |
Frequency - Switching: | Up to 500kHz |
Duty Cycle (Max): | 97% |
Synchronous Rectifier: | No |
Clock Sync: | No |
Serial Interfaces: | -- |
Description
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UC3842D8 Application Field and Working PrincipleUC3842D8 is a DC/DC step-down switching regulator controller manufactured by STMicroelectronics, having a power output rating of up to 20V and 15A. This regulator is suitable for a number of different applications such as telecom, automotive and industrial applications. UC3842D8 includes a wide range of features to ensure high efficiency and reliability.UC3842D8 is a DC/DC switching regulator which convert high voltage input to a lower voltage output. This type of regulator is also known as buck regulator or step-down converter. It uses two power transistors, an inductor and a capacitor to transfer electrical energy from the input source to the output. The two power transistors are used to switch on and off the power input at a fixed frequency, thus allowing the turning of the input power into the output voltage. This frequency can be adjusted by the user through the edge-controlled frequency control algorithm allowing the tracking of different loads.One of the main features of the UC3842D8 is its overvoltage protection. This feature helps protect the system from high voltages in the event of an accidental overcurrent. It also allows the user to easily adjust the output voltage through the output voltage setting pin. Additionally, the included output voltage trim pin allows the user to fine-tune the output voltage easily.UC3842D8 also features low power start-up which ensures the smooth transition from low load currents to high load currents when the load increases. This makes it suitable for situations where suddenly increasing load demands are common. Additionally, the device is equipped with thermal shutdown protection which helps protect the system from overheating by automatically shutting down the device when it exceeds its maximum temperature.UC3842D8 also includes soft start / current limit circuitry which helps reduce inrush currents during power up and protects the system from overcurrents. The device also includes protection from false trigger which helps protect the system from undesired power events.UC3842D8 is a versatile device suitable for a wide range of applications such as a step-down switching regulator, DC-DC converters, telecom and automotive applications. Thanks to its high efficiency, low power consumption, overvoltage protection and other features, the UC3842D8 is a great choice for these types of applications.The specific data is subject to PDF, and the above content is for reference
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