UC3842ADM

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, 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):	96%
Synchronous Rectifier:	No
Clock Sync:	No
Serial Interfaces:	--
Control Features:	Frequency Control
Operating Temperature:	0°C ~ 70°C (TA)
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Base Part Number:	UC*84

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

UC3842ADM​ Application Field and Working PrincipleThe UC3842ADM is a pulse-width modulation (PWM) controller integrated circuit (IC), commonly used in DC-DC switching step-up and step-down conversion applications. It is a member of the UC3842 family of PWM controllers and has a wide range of voltage ratings, enabling it to be used in a variety of applications. This article explains the application field of the UC3842ADM and its working principle.Application Field The UC3842ADM is primarily used in the field of DC-DC switching regulators, where it provides a reliable and stable platform for power conversion. This IC is widely used in switching step-up and step-down voltage conversion applications, such as DC-DC converters, DC-DC voltage regulators, and other power conditioning equipment. The UC3842ADM’s wide range of voltage ratings makes it suitable for use in a variety of voltage conversion scenarios.The UC3842ADM is also included in certain stand-alone DC-DC converters, UPS systems, lighting controls, and other power distribution equipment. In addition, it is used in a variety of battery operated equipment, such as mobile phones, laptop computers, and other similar devices. Its robust design and low power consumption helps to extend the operating life of these devices.Working PrincipleThe UC3842ADM works on the principle of pulse-width modulation (PWM). The PWM principle is the basis for all modern DC-DC switching regulators and enables the effective conversion of power from one voltage level to another. The IC operates by controlling the duty cycle of pulse-width modulation (PWM) to deliver the desired voltage output.The UC3842ADM is a Buck-Boost switching PWM controller, meaning it can work in both step-up and step-down voltage conversion applications. The user is able to easily adjust the operating parameters of the IC either through manual controls or by connecting the IC to an external voltage reference or control circuit.The IC has two internally programmed, fixed off-time periods (ton and toff), which together determine the switchable duty cycle. The user is able to externally adjust the switching frequency of the IC in order to achieve the desired voltage conversion. Additionally, the UC3842ADM contains current limiting circuitry, which senses the current flowing through the output and adjusts the duty cycle as necessary to prevent over-current and under-current.The UC3842ADM also includes thermal shutdown protection, which ensures the IC operates within its specified temperature parameters. This helps to prevent damage due to excessive heat and extends the life of the IC.In summary, the UC3842ADM is a highly reliable and robust PWM controller, offering low power consumption and a wide range of voltage ratings for use in a variety of Step-Up (Boost) and Step-Down (Buck) DC-DC voltage conversion applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description