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JSMSEMI UC3845B-JSM product image
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JSMSEMI UC3845B-JSMRoHS

Manufacturer
JSMSEMIAsian Brands
MPN
UC3845B-JSM
LCSC Part #
C41421787
Packaging
SOP-8
Customer #
Key Attributes
Pulse Width Modulation (PWM) circuit
Datasheetpdf iconJSMSEMI UC3845B-JSM
In-Stock: 4,690
4,690 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.2295$ 0.1148$ 0.57
50+$ 0.2004$ 0.1002$ 5.01
150+$ 0.1879$ 0.0940$ 14.10
500+$ 0.1724$ 0.0862$ 43.10
2,500+$ 0.1655$ 0.0828$ 207.00
5,000+$ 0.1613$ 0.0807$ 403.50
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
ManufacturerJSMSEMI
PackagingSOP-8
Operating Temperature0℃~+70℃
Output Current1A
Frequency - Switching500kHz
Pd - Power Dissipation1W
Voltage - Breakdown-
Voltage - Supply30V
FeaturesUnder-voltage lockout;Under Voltage Protection
Topology-
Output Voltage-
Duty Cycle(Max)50%
Feedback System-
Working ModePWM Modulation
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

UC3845 is a current-mode PWM IC designed for switching power supplies. Compared to voltage-mode control, it offers significant advantages in load transient response and line regulation. Available in SOP8 and DIP8 packages.

Features

AI Translation
  • Built-in undervoltage lockout circuit
  • Low startup current (typical 60uA)
  • Stable internal voltage reference
  • High-current push-pull output (drive current up to 1A)
  • Operating frequency up to 500kHz
  • Automatic negative feedback compensation circuit
  • Double pulse suppression
  • Superior load transient response