Parameters |
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 |
Tape & Reel (TR) |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
2 (1 Year) |
Number of Terminations |
18 |
ECCN Code |
EAR99 |
Additional Feature |
CURRENT MODE OPERATION IS ALSO POSSIBLE |
Subcategory |
Switching Regulator or Controllers |
Technology |
BICMOS |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Frequency |
450kHz |
Base Part Number |
UC3841 |
Function |
Step-Up, Step-Up/Step-Down |
Number of Outputs |
1 |
Output Voltage |
40V |
Output Type |
Transistor Driver |
Input Voltage-Nom |
20V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive, Isolation Capable |
Output Current |
400mA |
Voltage - Supply (Vcc/Vdd) |
8V~32V |
Control Features |
Current Limit, Enable, Frequency Control, Ramp, Reset, Soft Start |
Topology |
Boost, Flyback, Forward Converter |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
500kHz |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
No |
Nominal Input Voltage |
30V |
Switcher Configuration |
SINGLE |
Max Duty Cycle |
95 % |
Height Seated (Max) |
2.65mm |
Width |
7.5mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
UC3841DWTR Overview
In the 18-SOIC (0.295, 7.50mm Width) package, the switching controller meets most application requirements. It is sufficient to generate 1 outputs with this dc motor controller. Tape & Reel (TR) is the solid enclosure in which PMIC is packaged. With this function, you can deal with Transistor Driver dc switching's outputs (s). dc control's supply and operating voltages are 8V~32V. Worked in a 0°C~70°C TA dc switcher before. Switching can be done at 500kHz with this switching controller. The Surface Mount makes it ideal for general dc dc regulator. Featured in the dcdc regulator is Current Limit, Enable, Frequency Control, Ramp, Reset, Soft Start which allows efficient switching control. Connected to a SWITCHING CONTROLLER analog IC, the switch converters are connected to a power supply. Switching converters are designed with the terminal (s) at position DUAL . Various 18 terminations. These dc dc converter ics adapt several control methods, including PULSE WIDTH MODULATION. There is a DC switcher's nominal voltage of 20V. A search for "UC3841" will reveal other relevant dc to dc converter ics. Pins number 18 of switching converter in total. Switching converter is a special type of Switching Regulator or Controllers. Statistically, DC regulator outputs 40V volts. In most cases, the dc dc regulator's output current is 400mA. This information should be noted when you begin working with the component. During power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set to 95 %. A frequency of 450kHz is used by the switching controller. This value is CURRENT MODE OPERATION IS ALSO POSSIBLE so that DC to DC voltage regulator better serves the purpose. For nominal working status, the input voltage can be set as 30V.
UC3841DWTR Features
Transistor Driver Outputs
Switching Frequency: 500kHz
Current Limit, Enable, Frequency Control, Ramp, Reset, Soft Start
PULSE WIDTH MODULATION
Max Duty Cycle: 95 %
Frequency: 450kHz
CURRENT MODE OPERATION IS ALSO POSSIBLE
UC3841DWTR Applications
There are a lot of Texas Instruments UC3841DWTR DC to DC converter applications.
- Automatic plug-in machines
- Balance equipment
- Electrical power transmission
- Electric water heaters
- Drilling machines
- Textile machinery
- Hydro power
- Driver circuits
- Ball screw pair
- Product burn-in