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COSINE UC3842BDRoHS

Manufacturer
COSINEAsian Brands
MPN
UC3842BD
LCSC Part #
C22458872
Packaging
SOP-8
Customer #
Key Attributes
Current-Mode PWM Controllers
Datasheetpdf iconCOSINE UC3842BD
In-Stock: 3,555
3,555 In stock, ships now
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QtyUnit PriceTotal Amount
5+$ 0.0931$ 0.0838$ 0.42
50+$ 0.0818$ 0.0737$ 3.69
150+$ 0.0761$ 0.0685$ 10.28
500+$ 0.0718$ 0.0647$ 32.35
2,500+$ 0.0684$ 0.0616$ 154.00
4,000+$ 0.0667$ 0.0601$ 240.40
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
ManufacturerCOSINE
PackagingSOP-8
Operating Temperature-40℃~+125℃
Output Current1A
Frequency - Switching47kHz~57kHz
Pd - Power Dissipation-
Voltage - Breakdown-
Voltage - Supply8V~30V
FeaturesUnder-voltage lockout;Under Voltage Protection;Over Current Protection
TopologyFlyback
Output Voltage5V
Duty Cycle(Max)100%
Feedback SystemSecondary-Side Feedback
Working ModePWM Modulation
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging4000
Sales UnitPiece

Introduction

AI Translation

The COS UC384x series of controllers are peak current mode pulse width modulators. They are designed to offer improved performance and lowered external parts count when used in designing off-line or DC-to-DC switching power supplies. The internally implemented circuits include an under-voltage lockout (UVLO), featuring a start-up current of less than 1mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage that is designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.

Features

AI Translation
  • 8-V to 30-V Operation
  • Low Start-up Current: <1mA
  • 5.1-V Reference Trimmed to 1%
  • Current Mode Operation up to 500KHz
  • Automatic Feed-forward Compensation
  • Under-voltage Lockout With Hysteresis Latching PWM for Cycle-by-Cycle Current Limit
  • Double-Pulse Suppression
  • High Current Output Driver Optimized for off-line and DC-to-DC Converters
  • Available Packaging: SOP8/TSSOP8/DIP8

Applications

AI Translation
  • Solar Inverters
  • Switching Regulators of Any Polarity
  • Motor Control
  • Battery Chargers
  • DC/DC Power Supplies