English

All Products

View All >>
  • UC3851N

UC3851N

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


  • Manufacturer: Texas Instruments
  • Origchip NO: 815-UC3851N
  • Package: 18-DIP (0.300, 7.62mm)
  • Datasheet: PDF
  • Stock: 521
  • Description: 18 Terminations7.8V~32V 18 Pin UC3851 AC to DC power converter1 OutputsUp to 500kHz (Kg)

Purchase & Inquiry

Transport

Purchase

You may place an order without registering to Utmel.
We strongly suggest you sign in before purchasing as you can track your order in real time.

Means of Payment

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.

RFQ (Request for Quotations)

It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.

IMPORTANT NOTICE

1. You'll receive an order information email in your inbox. (Please remember to check the spam folder if you didn't hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping Cost

Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and country.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

Delivery Time

Once the goods are shipped, estimated delivery time depends on the shipping methods you chose:

FedEx International, 5-7 business days.

The following are some common countries' logistic time.
transport

Details

Tags

Parameters
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 2 days ago)
Mounting Type Through Hole
Package / Case 18-DIP (0.300, 7.62mm)
Surface Mount NO
Number of Pins 18
Weight 1.206102g
Operating Temperature 0°C~70°C TA
Packaging Tube
JESD-609 Code e4
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 18
ECCN Code EAR99
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Additional Feature CURRENT MODE OPERATION IS ALSO POSSIBLE
Subcategory Switching Regulator or Controllers
Max Power Dissipation 1W
Technology BICMOS
Terminal Position DUAL
Number of Functions 1
Terminal Pitch 2.54mm
Frequency 450kHz
Base Part Number UC3851
Pin Count 18
Number of Outputs 1
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
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 5.08mm
Length 22.48mm
Width 6.35mm
Thickness 4.57mm
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free

UC3851N Overview


18-DIP (0.300, 7.62mm) is the package in which the ac to dc converter is embedded.In Tube AC/DC power converter, it is available.It is mounted in the way of Through Hole .The ac dc converter needs to be operated at 0°C~70°C TA °C in order to perform.The AC DC converter uses a type SWITCHING CONTROLLER analog integrated circuit.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).It has a total of 18 terminations.On the ac/dc converter, there are 18 pins.There are 18 pins in the ac-dc converter.A similar acdc converter can be searched by using the UC3851 family.Running 1 outputs is available.Switching Regulator or Controllers contains the ac to dc conversions.400mA is set as the output current.As a result, its output voltage is 40V .A high efficiency is achieved when operating at a frequency of 450kHz .You can read the standard for REACH SVHC at: No SVHC .There is 1W output power generated by a coverter.Additionally, CURRENT MODE OPERATION IS ALSO POSSIBLE can be discovered using this ACDC converter.

UC3851N Features


Packaged with 18-DIP (0.300, 7.62mm)
Switching Frequency at Up to 500kHz
With 18 pins
Output Current at 400mA

UC3851N Applications


There are a lot of Texas Instruments UC3851N AC DC Converters applications.

  • Standby and Auxiliary Power Supplies
  • 3.3V power supplies
  • Digital cameras
  • Battery chargers for mobile devices with touchpad display
  • PDAs
  • LED Driver
  • Open Frame Switching Power Supply
  • Standby power
  • LED lights
  • Cleaners