Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
ACTIVE (Last Updated: 1 day ago) |
Mounting Type |
Surface Mount |
Package / Case |
8-SOIC (0.154, 3.90mm Width) |
Surface Mount |
YES |
Number of Pins |
8 |
Weight |
72.603129mg |
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 |
8 |
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 |
500kHz |
Base Part Number |
UC3843 |
Function |
Step-Up, Step-Down, Step-Up/Step-Down |
Number of Outputs |
1 |
Output Voltage |
5V |
Output Type |
Transistor Driver |
Input Voltage-Nom |
15V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Power Dissipation |
1W |
Output Current |
200mA |
Voltage - Supply (Vcc/Vdd) |
7.6V~30V |
Quiescent Current |
11mA |
Control Features |
Frequency Control |
Topology |
Boost, Buck, Buck-Boost, Flyback, Forward |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
Up to 500kHz |
Control Technique |
PULSE WIDTH MODULATION |
Rise Time |
50ns |
Supply Current-Max (Isup) |
25mA |
Synchronous Rectifier |
No |
Fall Time (Typ) |
50 ns |
Nominal Input Voltage |
25V |
Max Duty Cycle |
100 % |
Input Current |
11mA |
Duty Cycle (Max) |
96% |
Height |
1.75mm |
Length |
4.9mm |
Width |
3.91mm |
Thickness |
1.58mm |
REACH SVHC |
No SVHC |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
UC3843AD8 Overview
With a 8-SOIC (0.154, 3.90mm Width) package, the switching controller is suitable for a wide range of applications. It is sufficient to generate 1 outputs with this dc motor controller. PMIC packaging is solid with a Tube enclosure. There are Transistor Driver dc switching's output (s) that it can handle. 7.6V~30V is the operating voltage and supply voltage of the dc control. Suitable for working in an dc switcher that has a 0°C~70°C TA. This switching controller can switch at Up to 500kHz. It is suitable for general dc dc regulator when it is set to Surface Mount. DCDC regulator is controlled efficiently by Frequency Control. A SWITCHING CONTROLLER analog IC is connected to the switch converters. There are a terminal (s) on the switching converters that are designed at DUAL. Different dc switching's functions can be applied to 8 terminations. PULSE WIDTH MODULATION is an example of one of the control techniques these dc dc converter ics adapt. The DC switcher's nominal voltage is 15V. You can find other relevant dc to dc converter ics by searching "UC3843". There are a total of 8 pins on switching converter. Switching converter is a special type of Switching Regulator or Controllers. According to the test statistics, DC regulator outputs 5V voltage. It's important to remember that the dc dc regulator's normaloutput current is 200mA, so you should note it down when starting a new project. Power-up and power-down reliability is ensured voltage regulator dc to dc by setting the maximum duty cycle to 100 %. Switching controller operates at 500kHz Hz. A dc switching in a dormant state uses 11mA. For nominal working status, the input voltage can be set as 25V. There is a requirement for a 11V supply voltage. The controller should not be supplied with more current than 25mA. If there is 11mA current flow input, then the switching converter could operate.
UC3843AD8 Features
Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %
Frequency: 500kHz
UC3843AD8 Applications
There are a lot of Texas Instruments UC3843AD8 DC to DC converter applications.
- CNC system
- Analog precision reference circuits
- Geothermal power
- Bending machines
- Digital video recorders
- Hydro power
- Photovoltaic power
- Terrestrial set-top boxes
- Surge protection circuits
- Linear guide