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TI UC3844ADTRRoHS

Manufacturer
TI
MPN
UC3844ADTR
LCSC Part #
C1880378
Packaging
SOIC-14
Customer #
Key Attributes
UCx84xA Current-Mode PWM Controllers
Datasheetpdf iconTI UC3844ADTR
In-Stock: 251
251 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 0.9033$ 0.90
10+$ 0.7992$ 7.99
30+$ 0.6999$ 21.00
100+$ 0.6267$ 62.67
500+$ 0.5957$ 297.85
1,000+$ 0.5811$ 581.10
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Power Supply Controllers, Monitors
ManufacturerTI
PackagingSOIC-14
Output Current1A
Pd - Power Dissipation1W
Frequency - Switching500kHz
FeaturesSlope compensation;Under-voltage lockout;Over Current Protection;Under Voltage Protection
Output Voltage5V
Duty Cycle(Max)50%
Operating Temperature0℃~+70℃
Working ModePWM Modulation
Feedback SystemSecondary-Side Feedback
Operating Voltage10V~30V
TopologyFlyback
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The UCx84xA series of fixed-frequency pulse-width modulation (PWM) controllers are designed to operate at a switching frequency of 500kHz. These controllers are designed for peak current mode (PCM) and can be used in both isolated and non-isolated power supply designs. These controllers can drive FETs directly from the output, capable of sourcing and sinking up to 1A of gate drive current. These devices also feature a built-in low-impedance amplifier, which can be used in non-isolated designs to control the power supply output voltage and feedback loop.

Features

AI Translation
  • Optimized for off-line and DC/DC converters
  • Low startup current (< 0.5mA)
  • Trimmed oscillator discharge current
  • Automatic feedforward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load response characteristics
  • Undervoltage lockout with hysteresis
  • Double pulse suppression
  • High-current totem-pole output
  • Internally trimmed bandgap reference
  • Operating frequency up to 500kHz

Applications

AI Translation
  • Switched-Mode Power Supplies (SMPS)
  • DC/DC Converters
  • Power Modules
  • Industrial PSUs
  • Battery-Powered PSUs