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TI TL3843DR-8 product image
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TI TL3843DR-8RoHS

Manufacturer
TI
MPN
TL3843DR-8
LCSC Part #
C485108
Packaging
SOIC-8
Customer #
Key Attributes
Current-Mode PWM Controllers
Datasheetpdf iconTI TL3843DR-8
In-Stock: 93
93 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.5465$ 0.55
10+$ 0.467$ 4.67
30+$ 0.4103$ 12.31
100+$ 0.3633$ 36.33
500+$ 0.3487$ 174.35
1,000+$ 0.3406$ 340.60
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingSOIC-8
Operating Temperature0℃~+70℃
Output Current200mA
FeaturesUnder-voltage lockout;Slope compensation;Over Voltage Protection;Short Circuit Protection;Overtemperature protection (OTP);Over Current Protection;Under Voltage Protection
TopologyBuck
Duty Cycle(Max)97%
Frequency - Switching500kHz
Operating Voltage5V~30V
Output Voltage0V~30V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The TL284x and TL384x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, 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 designed to source or sink high-peak current. The output stage, suitable for driving Nchannel MOSFETs, is low when it is in the off state.

Features

AI Translation
  • Optimized for Off-Line and DC-to-DC Converters
  • Low Start-Up Current (<1 mA)
  • Automatic Feed-forward 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
  • 500-kHz Operation
  • Error Amplifier With Low Output Resistance
  • Designed to be Interchangeable with UC2842 and UC3842 Series

Applications

AI Translation
  • Switching regulators of any polarity
  • Transformer-coupled DC/DC convertors