Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
ACTIVE (Last Updated: 6 days ago) |
Mounting Type |
Surface Mount |
Package / Case |
14-SOIC (0.154, 3.90mm Width) |
Surface Mount |
YES |
Number of Pins |
14 |
Weight |
145.603151mg |
Operating Temperature |
-40°C~125°C TA |
Packaging |
Cut Tape (CT) |
JESD-609 Code |
e4 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
14 |
ECCN Code |
EAR99 |
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
Subcategory |
Switching Regulator or Controllers |
Technology |
BIPOLAR |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Supply Voltage |
11V |
Frequency |
450kHz |
Base Part Number |
UC2844 |
Function |
Step-Up, Step-Down, Step-Up/Step-Down |
Number of Outputs |
1 |
Output Voltage |
15V |
Output Type |
Transistor Driver |
Operating Supply Voltage |
30V |
Input Voltage-Nom |
15V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Output Current |
200mA |
Voltage - Supply (Vcc/Vdd) |
10V~30V |
Quiescent Current |
11mA |
Control Features |
Frequency Control |
Topology |
Boost, Buck, Buck-Boost, Flyback, Forward |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
Up to 500kHz |
Input Voltage (Max) |
25V |
Control Technique |
PULSE WIDTH MODULATION |
Rise Time |
50ns |
Supply Current-Max (Isup) |
25mA |
Synchronous Rectifier |
No |
Fall Time (Typ) |
50 ns |
Max Duty Cycle |
50 % |
Duty Cycle (Max) |
48% |
Height |
1.75mm |
Length |
8.65mm |
Width |
3.91mm |
Thickness |
1.58mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
UC2844AQDR Overview
This switching controller fits most application requirements since it is packaged in a 14-SOIC (0.154, 3.90mm Width) package. It is sufficient to generate 1 outputs with this dc motor controller. There is a Cut Tape (CT) solid enclosure around the pmic. The system can process Transistor Driver dc switching's outputs (s). dc control's supply and operating voltages are 10V~30V. Suitable for working in an dc switcher that has a -40°C~125°C TA. There is a switch at Up to 500kHz that can be used with this controller. A generalization of dc dc regulator can be made using Surface Mount. Switching control is made easier with the dcdc regulator's Frequency Control. A SWITCHING CONTROLLER analog integrated circuit is connected to the switch converters. There are a terminal (s) on the switching converters that are designed at DUAL. 14 terminations with a variety of function. Some of the control techniques adapted by these dc dc converter ics include PULSE WIDTH MODULATION. A DC switcher's nominal voltage of 15V is input. You can find other relevant dc to dc converter ics by searching "UC2844". Total pins of switching converter are 14. The type is a particular Switching Regulator or Controllers of switching converter. As determined by the test statistics, the output voltage of DC regulator is 15V. It should be noted that the dc to dc regulator only accepts 25V voltage as input voltage. If you are starting a new project, you should note the dc dc regulator's typical output current is 200mA. To ensure the reliability under power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set as 50 %. Switching controllers work at 450kHz Hz. In order to run the voltage regulator dc to dc safely and reliably, users are advised to apply 30V. When the dc switching is dormant, it uses 11mA. Voltage 11V must be supplied. In order to ensure proper operation, the controller should not receive more current than 25mA.
UC2844AQDR Features
Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 50 %
Frequency: 450kHz
UC2844AQDR Applications
There are a lot of Texas Instruments UC2844AQDR DC to DC converter applications.
- Smoke prevention equipment
- Game consoles
- Overvoltage protection circuits in TV sets
- Pipe bending machines
- Various precision measuring instruments
- Packaging
- Thermal power
- Printing equipment
- Precision electronic equipment
- Geothermal power