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UC3851DW

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


  • Manufacturer: Texas Instruments
  • Origchip NO: 815-UC3851DW
  • Package: 18-SOIC (0.295, 7.50mm Width)
  • Datasheet: PDF
  • Stock: 441
  • Description: 18 Terminations7.8V~32V 18 Pin UC3851 AC to DC power converterUp to 500kHz (Kg)

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Details

Tags

Parameters
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 1 week ago)
Mounting Type Surface Mount
Package / Case 18-SOIC (0.295, 7.50mm Width)
Surface Mount YES
Number of Pins 18
Operating Temperature 0°C~70°C TA
Packaging Tube
JESD-609 Code e4
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 2 (1 Year)
Number of Terminations 18
ECCN Code EAR99
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Additional Feature CURRENT MODE OPERATION IS ALSO POSSIBLE
HTS Code 8542.39.00.01
Subcategory Switching Regulator or Controllers
Max Power Dissipation 1W
Technology BICMOS
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Number of Functions 1
Terminal Pitch 1.27mm
Frequency 450kHz
Base Part Number UC3851
Pin Count 18
Output Voltage 40V
Input Voltage-Nom 20V
Analog IC - Other Type SWITCHING CONTROLLER
Nominal Supply Current 15mA
Output Current 400mA
Voltage - Supply (Vcc/Vdd) 7.8V~32V
Output Power 1W
Control Features Frequency Control, Soft Start
Topology Boost, Buck, Flyback, Forward
Control Mode CURRENT/VOLTAGE-MODE
Frequency - Switching Up to 500kHz
Control Technique PULSE WIDTH MODULATION
Rise Time 50ns
Supply Current-Max (Isup) 21mA
Fall Time (Typ) 50 ns
Nominal Input Voltage 30V
Switcher Configuration BUCK-BOOST
Internal Switch(s) No
Fault Protection Current Limiting, Over Voltage
Max Duty Cycle 46 %
Isolation Non-Isolated
Duty Cycle 50%
Voltage - Start Up 8V
Height 2.65mm
Length 11.5mm
Width 7.5mm
Thickness 2.35mm
RoHS Status ROHS3 Compliant
Lead Free Lead Free

UC3851DW Overview


This ac to dc converter is included in the package 18-SOIC (0.295, 7.50mm Width) .In Tube AC/DC power converter, it is available.There is a AC/DC converter mounted in the way of Surface Mount .This ac dc converter should be operated at a temperature of 0°C~70°C TA °C so that it can deliver its performance.Analog IC type SWITCHING CONTROLLER is utilized in this AC DC converter.As a result, the switching frequency reaches Up to 500kHz .This AC/DC converter is suitable for operation in the range of 7.8V~32V supply voltage (Vcc/Vdd).In total, there are 18 terminations.There are 18 pins on the ac/dc converter.Up to 18 pins are present on the ac-dc converter.If you select the UC3851 family, you will be able to search similar acdc converters.Switching Regulator or Controllers includes the ac to dc conversions.We have set the output current to 400mA .There is 40V voltage output from it.AC to DC converter is able to reach high efficiency when its frequency is 450kHz .Coverters generate 1W in terms of output power.As a result of using this ACDC converter, CURRENT MODE OPERATION IS ALSO POSSIBLE can also be detected.

UC3851DW Features


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

UC3851DW Applications


There are a lot of Texas Instruments UC3851DW AC DC Converters applications.

  • Records
  • Portable audio
  • Z-Wave
  • Auxiliary Power Supplies
  • Home appliances
  • Replaces linear transformers
  • Humidifier
  • Adaptors for Portable Media Player
  • Replacements for bulky plug-in transformers
  • ZigBee