Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
8-SOIC (0.154, 3.90mm Width) |
Number of Pins |
8 |
Weight |
230.4mg |
Operating Temperature |
0°C~70°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2000 |
JESD-609 Code |
e4 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
8 |
ECCN Code |
EAR99 |
Terminal Finish |
Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Time@Peak Reflow Temperature-Max (s) |
30 |
Base Part Number |
UC3843 |
Function |
Step-Up, Step-Up/Step-Down |
Number of Outputs |
1 |
Output Type |
Transistor Driver |
Input Voltage-Nom |
15V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Operating Supply Current |
17mA |
Nominal Supply Current |
17mA |
Output Configuration |
Positive |
Output Current |
1kA |
Voltage - Supply (Vcc/Vdd) |
7.6V~30V |
Control Features |
Frequency Control |
Topology |
Boost, Flyback |
Frequency - Switching |
Up to 500kHz |
Input Voltage (Max) |
25V |
Control Technique |
PULSE WIDTH MODULATION |
Rise Time |
40ns |
Synchronous Rectifier |
No |
Fall Time (Typ) |
40 ns |
Switcher Configuration |
SINGLE |
Max Frequency |
500kHz |
Max Duty Cycle |
100 % |
Duty Cycle (Max) |
96% |
Length |
4.9mm |
Width |
3.9mm |
RoHS Status |
RoHS Compliant |
UC3843ADX Overview
With its 8-SOIC (0.154, 3.90mm Width) package, the switching controller fits the needs of most applications. For 1 outputs, the dc motor controller is appropriate. The pmic is packaged in Tape & Reel (TR) solid enclosure. A total of Transistor Driver dc switching's outputs can be handled by it. DC control operates at 7.6V~30V volts and has 7.6V~30V supply voltage. Work well in dc switchers with a 0°C~70°C TA. It can switch at Up to 500kHz. A generalization of dc dc regulator can be made using Surface Mount. Frequency Control is used for efficient switching control in the dcdc regulator. Connected to a SWITCHING CONTROLLER analog IC, the switch converters are connected to a power supply. Thare switching converters has a terminal (s) at DUAL . 8 terminations with a variety of function. These dc dc converter ics adapt a variety of control techniques, including PULSE WIDTH MODULATION. The DC switcher's nominal voltage is 15V. Other relevant dc to dc converter ics will be returned if you search "UC3843". The switching converter has a total of 8 pins. At most, the dc to dc regulator accepts 25V input voltage. You should note down the dc dc regulator's usual output current of 1kA when you start a project. The duty cycle of the voltage regulator dc to dc can be set to 100 % on power-up or power-down to ensure reliability. DC switcher's Surface Mount qualifies it for most applications and prototypes. DC regulator's maximum frequency is 500kHz. It runs on a supply current of 17mA. This the controllers dc receives a 17mA nominal current supply.
UC3843ADX Features
Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %
UC3843ADX Applications
There are a lot of ON Semiconductor UC3843ADX DC to DC converter applications.
- Bending machines
- Emergency lighting monitoring equipment
- Overvoltage protection circuits in TV sets
- Digital precision reference circuits
- Serial communication converter
- Cutting machine tools
- Medical equipment
- Machining centers
- Network technology
- Pipe bending machines