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lingxingic UC2843BD(LX)RoHS

Manufacturer
lingxingicAsian Brands
MPN
UC2843BD(LX)
LCSC Part #
C22390254
Packaging
SOP-8
Customer #
Key Attributes
High-performance current-mode PWM controller
Datasheetpdf iconlingxingic UC2843BD(LX)
In-Stock: 4,200
4,200 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.1403$ 0.70
50+$ 0.1225$ 6.13
150+$ 0.1149$ 17.24
500+$ 0.1054$ 52.70
2,500+$ 0.1012$ 253.00
4,000+$ 0.0986$ 394.40
Standard Packaging4000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
Manufacturerlingxingic
PackagingSOP-8
Operating Temperature-40℃~+105℃
Output Current1A
Frequency - Switching49kHz~55kHz
Pd - Power Dissipation-
Voltage - Breakdown-
Voltage - Supply7.6V~30V
FeaturesUnder-voltage lockout;Over Current Protection;Under Voltage Protection
TopologyBoost
Output Voltage5V
Duty Cycle(Max)97%
Feedback System-
Working ModePWM Modulation
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging4000
Sales UnitPiece

Introduction

AI Translation

This series of devices are fixed-frequency PWM control circuits designed primarily to provide current-mode control for off-line power supplies or DC-DC converters, requiring minimal external components. Integrated on-chip are a trimable-frequency oscillator, a temperature-compensated precision reference voltage, a high-gain error amplifier, and a current-sense comparator. The output stage employs a push-pull configuration capable of sourcing and sinking large currents, suitable for driving MOSFET power switches. Built-in UVLO and current-limiting protection circuits are also included. Different variants differ in UVLO thresholds and maximum operating duty cycle: the UC2842 and UC2844 have turn-on/turn-off thresholds of 16V and 10V respectively, while the UC2843 and UC2845 feature thresholds of 8.8V and 7.6V. The UC2842 and UC2843 can operate at duty cycles approaching 100%, whereas the UC2844 and UC2845 are limited to approximately 50% duty cycle.

Features

AI Translation
  • Low startup current (<0.5mA)
  • Maximum duty cycle clamp
  • UVLO with hysteresis
  • Operating frequency up to 500kHz
  • Operating temperature range: -40℃ ~ 125℃