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Description
Current-mode PWM controller
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DESCRIPTION
The UC3842 is available in an 8-Pin mini-DIP the necessary features to implement off-line, fixed-frequency current-mode control schemes with a minimal external parts count.This technique results in improved line regulation, enhanced load response characteristics, and a simpler, easier to design control loop. Topological advantages include inherent pulse-by-pulse current limiting.
Protection circuitry includes built-in under voltage lock-out and current limiting. Other features include fully-latched operation, a 1% trimmed bandgap reference, and start-up current less than 1mA.
These devices feature a totem-pole output designed to source and sink high peak current from a capacitive load, such as the gate of a power MOSFET. Consistent with N-channel power devices, the output is low in the OFF-state.
FEATURES
● Low start-up current (≤1mA)
● Automatic feed-forward compensation
● Pulse-by-pulse current limiting
● Enhanced load response characteristics
● Under voltage lock-out with hysteresis
● Double pulse suppression
● High current totem-pole output
● Internally-trimmed bandgap reference
● 400kHz operation, guaranteed min
Preview of the first 3 pages of the data sheet
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241 buyer reviews from United Kingdom
Amber King
Length of registration:7 years
The UC3842N integrated circuit is an excellent choice for applications requiring high performance, low power consumption, and reliable operation. It features a wide range of features, including a wide operating voltage range, low quiescent current, and a wide temperature range. The UC3842N is an ideal choice for applications such as motor control, power converters, and other power management appli
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03/17/2023
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UC3842N
UC3842N has several brands around the world that may have alternate names for UC3842N due to regional differences or acquisition. UC3842N may also be known as the following names:
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Stock Status: 10000
Minimum: 5
Total Price:
Unit Price:0.56908
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Stop production experts, we can provide a large number of electronic components that have been stopped production and are difficult to find, to facilitate the maintenance company
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