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Wuxi Maxinmicro MX1112S product image
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  • Pinout Diagram
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Wuxi Maxinmicro MX1112SRoHS

Manufacturer
Wuxi MaxinmicroAsian Brands
MPN
MX1112S
LCSC Part #
C5341117
Packaging
SOP-7
Customer #
Key Attributes
High Precision CC/CV Primary-Side Power Switch
Datasheetpdf iconWuxi Maxinmicro MX1112S
In-Stock: 75
75 In stock, ships now
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QtyUnit PriceTotal Amount
5+$ 0.2557$ 1.28
50+$ 0.2013$ 10.07
200+$ 0.1779$ 35.58
500+$ 0.1488$ 74.40
2,500+$ 0.1358$ 339.50
5,000+$ 0.1281$ 640.50
Standard Packaging100/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerWuxi Maxinmicro
PackagingSOP-7
Operating Temperature-40℃~+150℃
Output Current-
Frequency - Switching72kHz
Pd - Power Dissipation1.1W
Voltage - Breakdown650V
Voltage - Supply9V~24V
TopologyFlyback
FeaturesConstant Current Mode (CC);Constant Voltage (CV);Over Voltage Protection;Short Circuit Protection;Overtemperature protection (OTP);Over Current Protection;Under Voltage Protection
Output Voltage-
Duty Cycle(Max)-
Feedback SystemPrimary-side feedback
Working ModePFM Modulation;PWM Modulation
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging100
Sales UnitPiece

Introduction

AI Translation

MX1112S is high performance offline PSR power switch for low power AC/DC charger and adapter applications. It operates in primary side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated. Proprietary constant voltage and constant current control is integrated. In CC control, the current and output power setting can be adjusted externally by the sense resistor Rcs at CS pin. In CV control, multimode operations are utilized to achieve high performance and high efficiency. In addition, good load regulation is achieved by the built in cable drop compensation. Device operates in PFM in CC mode at large load condition and it operates in PWM with frequency reduction at light/medium load. The chip consumes very low operation current. It achieves less than 75mW standby power to meet strict standby power standard. MX1112S offers comprehensive protection coverage with auto-retry feature including cycle-by-cycle current limiting, VDD over voltage protection, feedback loop open protection, short circuit protection, built-in leading edge blanking, VDD under voltage lockout and OTP etc. MX1112S is offered in SOP-7 package.

Features

AI Translation
  • Primary side sensing and regulation without PC817 and TL431
  • High precision CC and CV at universal AC input
  • Multimode operation for efficiency improving
  • 2.5A 650V NMOSFET is integrated
  • Programmable CC and CV regulation
  • Built-in primary winding inductance compensation
  • Programmable cable drop compensation
  • No need for control loop compensation
  • Audio noise free operation
  • Ultra-low start up current and low operating current
  • Built in leading edge blanking (LEB)
  • Comprehensive protection coverage with auto-retry
  • VDD Under Voltage Lockout with hysteresis (UVLO)
  • VDD Over Voltage Protection (VDD OVP)
  • Cycle-by-cycle over current protection
  • Feedback loop open protection
  • Internal over temperature protection
  • Output short circuit protection

Applications

AI Translation
  • Cell Phone Charger
  • Auxiliary Power Adapter for TV, PC etc.
  • Small Power Adapter
  • Digital Cameras Charger