Parameters |
Factory Lead Time |
1 Week |
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