![UC3843BVD Allicdata Electronics](https://files.allicdata.com/upload/common/default.jpg)
Allicdata Part #: | UC3843BVDOS-ND |
Manufacturer Part#: |
UC3843BVD |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | IC REG CTRLR FLYBACK 14SOIC |
More Detail: | Boost, Flyback Regulator Positive Output Step-Up, ... |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Frequency - Switching: | Up to 500kHz |
Base Part Number: | UC384*B |
Supplier Device Package: | 14-SOIC |
Package / Case: | 14-SOIC (0.154", 3.90mm Width) |
Operating Temperature: | -40°C ~ 105°C (TA) |
Control Features: | Frequency Control |
Serial Interfaces: | -- |
Clock Sync: | No |
Synchronous Rectifier: | No |
Duty Cycle (Max): | 96% |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 7.6 V ~ 30 V |
Output Phases: | 1 |
Number of Outputs: | 1 |
Topology: | Boost, Flyback |
Output Configuration: | Positive |
Function: | Step-Up, Step-Up/Step-Down |
Output Type: | Transistor Driver |
Part Status: | Obsolete |
Packaging: | Tube |
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UC3843BVD is a 100 Volt, 3 MHz pulse width modulation (PWM) regulator manufactured by Texas Instruments Inc. It is a part of the company\'s UCx-BVD series of voltage controllers, which are specialized for use in secondary distributing power supplies. They are designed to provide high performance and reliability in an industrial setting, and are used in a wide range of applications, including automotive, computer and office equipment, factory automation, and consumer electronics.
The UC3843BVD is a linear monolithic integrated circuit that operates in most input power frequency ranges, making it suitable for flyback, buck boost, and forward voltage control applications. It features low gate drive power dissipation, low start-up current requirements, adjustable peak current limit and wide operating temperature range. It provides a high level of protection against short circuit conditions and UVLO (Under Voltage Lock Out).
The UC3843BVD provides synchronous rectification for improved efficiency and increased power density. It uses current sensing and clamping to protect from over-temperature and over-current conditions. Its output voltage can be adjusted by setting external resistors, enabling the device to be used in power dual-rail applications. It features an isolated voltage reference and an error amplifier to minimize output voltage ripple.
The UC3843BVD operates in pulse-width modulation (PWM) mode, which involves the use of an internal oscillator and voltage feedback control loop. When the output voltage reaches the desired level, the device switches off, allowing the current to decrease. When the voltage falls below the set level, the device switches back on and resumes regulating output voltage. As the duty cycle is adjusted in response to changes in load conditions, the device offers good regulation over a wide range of input voltages and load conditions.
The UC3843BVD is well-suited for use in a variety of power conversion and control circuits, such as voltage converters for DC-DC applications, DC motor drives, and pulse-width modulated lighting systems. It is also suitable for LED lighting, LED dimming, LED drivers, and actuation systems. In all applications, the UC3843BVD facilitates power conservation by providing efficient regulation of output voltage levels.
The specific data is subject to PDF, and the above content is for reference
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