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HANSCHIP semiconductor UC3843DRGRoHS

Manufacturer
HANSCHIP semiconductorAsian Brands
MPN
UC3843DRG
LCSC Part #
C19723748
Packaging
SOP-8
Customer #
Key Attributes
UC284x/UC384x series PWM controllers (suitable for offline power supplies and DC-DC converters)
Datasheetpdf iconHANSCHIP semiconductor UC3843DRG
In-Stock: 2,465
2,465 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.1262$ 0.63
50+$ 0.0998$ 4.99
150+$ 0.0866$ 12.99
500+$ 0.0767$ 38.35
2,500+$ 0.0687$ 171.75
5,000+$ 0.0648$ 324.00
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerHANSCHIP semiconductor
PackagingSOP-8
Operating Temperature0℃~+70℃
Output Current1A
Frequency - Switching47kHz~57kHz
Pd - Power Dissipation1W
Voltage - Breakdown-
Voltage - Supply7.6V~30V
Topology-
FeaturesUnder-voltage lockout;Under Voltage Protection;Over Current Protection
Output Voltage-
Duty Cycle(Max)97%
Feedback System-
Working ModePWM Modulation
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The UC284x and UC384x are fixed frequency current mode PWM controller. They are specially designed for OFF Line and DC to DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Protection circuitry includes built under voltage lockout and current limiting. The UC2842/44, UC3842/44 have UVLO thresholds of 16V (on) and 10V (off). The corresponding thresholds for the UC2843/45, UC3843/45 are 8.4V (on) and 7.6V (off). The UC2842/43, UC3842/43 can operate within 100% duty cycle. The UC2844/45, UC3844/45 can operate within 50% duty cycle. The UC2842/44/44/45 is characterized for operation from TA = -40°C to 85°C. The UC3842/43/44/45 is characterized for operation from TA = 0°C to 70°C.

Features

AI Translation
  • Low Start-Up and Operating Current
  • Under voltage Lockout With Hysteresis
  • High Current Totem Pole Output
  • Operating Frequency Up To 500KHz