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UC3851DWTR

UC3851DWTR

UC3851DWTR

Texas Instruments

18 Terminations7.8V~32V 18 Pin UC3851 AC to DC power converter1 OutputsUp to 500kHz

SOT-23

UC3851DWTR Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 3 days ago)
Mounting Type Surface Mount
Package / Case 18-SOIC (0.295, 7.50mm Width)
Surface MountYES
Number of Pins 18
Operating Temperature0°C~70°C TA
PackagingTape & Reel (TR)
JESD-609 Code e4
Pbfree Code yes
Part StatusActive
Moisture Sensitivity Level (MSL) 2 (1 Year)
Number of Terminations 18
ECCN Code EAR99
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Additional FeatureCURRENT MODE OPERATION IS ALSO POSSIBLE
Subcategory Switching Regulator or Controllers
Technology BICMOS
Terminal Position DUAL
Terminal FormGULL WING
Peak Reflow Temperature (Cel) 260
Number of Functions 1
Frequency 450kHz
Base Part Number UC3851
Pin Count18
Number of Outputs 1
Output Voltage 40V
Input Voltage-Nom 20V
Analog IC - Other Type SWITCHING CONTROLLER
Nominal Supply Current15mA
Output Current400mA
Voltage - Supply (Vcc/Vdd) 7.8V~32V
Output Power1W
Control Features Frequency Control, Soft Start
Topology Boost, Buck, Flyback, Forward
Control Mode VOLTAGE-MODE
Frequency - Switching Up to 500kHz
Control Technique PULSE WIDTH MODULATION
Rise Time50ns
Fall Time (Typ) 50 ns
Nominal Input Voltage30V
Switcher Configuration BUCK-BOOST
Internal Switch(s) No
Fault ProtectionCurrent Limiting, Over Voltage
Max Duty Cycle 46 %
Isolation Non-Isolated
Duty Cycle50%
Voltage - Start Up 8V
Height 2.65mm
Length 11.5mm
Width 7.5mm
Thickness 2.35mm
RoHS StatusROHS3 Compliant
Lead Free Lead Free
In-Stock:550 items

Pricing & Ordering

QuantityUnit PriceExt. Price

UC3851DWTR Product Details

UC3851DWTR Overview


This ac to dc converter is included in the package 18-SOIC (0.295, 7.50mm Width) .The AC/DC power converter type is Tape & Reel (TR) .There is a mounting point for this AC/DC converter in the way of Surface Mount .It is recommended that the ac dc converter be operated at a temperature of 0°C~70°C TA in order to ensure its performance.The AC DC converter uses a type SWITCHING CONTROLLER analog integrated circuit.When the switching frequency reaches Up to 500kHz , the circuit is closed.Within the range of 7.8V~32V supply voltage (Vcc/Vdd), it can be used.As a result, it has had 18 terminations.The ac/dc converter has a total of 18 pins.Up to 18 pins are present on the ac-dc converter.Search similar acdc converters based on UC3851 family members.There are 1 outputs to be processed.The ac to dc conversions are contained in Switching Regulator or Controllers .Current output is set to 400mA .This AC/DC converter produces a voltage of 40V as its output.This power AC DC is capable of reaching high efficiency when operating at a frequency of 450kHz .In the AC to DC transformer of a coverter, the output power generated is 1W .It is also possible to determine CURRENT MODE OPERATION IS ALSO POSSIBLE using this ACDC converter.

UC3851DWTR Features


Packaged with 18-SOIC (0.295, 7.50mm Width)
Switching Frequency at Up to 500kHz
With 18 pins
Output Current at 400mA

UC3851DWTR Applications


There are a lot of Texas Instruments UC3851DWTR AC DC Converters applications.

  • Linear Adapter Replacements
  • AC--DC Adapter
  • Appliance Power Supplies
  • WiFi Wireless
  • MPS parts
  • Automotive Clusters
  • AC/DC Adaptors/Chargers for PDAs
  • Power adapters for network devices
  • AC/DC LED Driver applications
  • Power adapters for monitors

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