UC3843AD
| Parameters | |
|---|---|
| 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 | 8.65mm |
| Width | 3.9mm |
| RoHS Status | RoHS Compliant |
| Lead Free | Lead Free |
| Lifecycle Status | OBSOLETE (Last Updated: 2 weeks ago) |
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) |
| Number of Pins | 14 |
| Weight | 230.4mg |
| Operating Temperature | 0°C~70°C TA |
| Packaging | Tube |
| Published | 2000 |
| JESD-609 Code | e0 |
| Pbfree Code | no |
| Part Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 14 |
| ECCN Code | EAR99 |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Subcategory | Switching Regulator or Controllers |
| Technology | BIPOLAR |
| Terminal Position | DUAL |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 240 |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Base Part Number | UC3843 |
| Function | Step-Up, Step-Up/Step-Down |
| Number of Outputs | 1 |
| Output Voltage | 5.1V |
| 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 | 1A |
| Voltage - Supply (Vcc/Vdd) | 7.6V~30V |
| Control Features | Frequency Control |
| Input Voltage (Min) | 8.2V |
| Topology | Boost, Flyback |
| Control Mode | CURRENT-MODE |
| Frequency - Switching | Up to 500kHz |
| Input Voltage (Max) | 30V |
UC3843AD Overview
It comes in the 8-SOIC (0.154, 3.90mm Width) package, which makes switching controller suitable for most applications. This dc motor controller can be used to generate outputs with 1 numbers. Packaging for the pmic consists of Tube solid enclosures. There are Transistor Driver dc switching's output (s) that it can handle. 7.6V~30V is the supply voltage and the operating voltage of the dc control. Work well in dc switchers with a 0°C~70°C TA. This switching controller can switch at Up to 500kHz. The Surface Mount value makes it suitable for general dc dc regulator. For efficient switching control, the dcdc regulator features Frequency Control. The switch converters are connected to an analog IC with a SWITCHING CONTROLLER output. Terminal (s) of the switching converters are designed at the DUAL position. There are many different types of terminations for 14. PULSE WIDTH MODULATION is an example of one of the control techniques these dc dc converter ics adapt. DC switcher's input voltageis 15V volts. A search for "UC3843" will reveal other relevant dc to dc converter ics. In total, switching converter has 14 pins. Switching converter is a type of Switching Regulator or Controllers in particular. This dc dc voltage regulator should be powered by a voltage of 8.2V. DC regulator outputs 5.1V voltage based on test statistics. It should be noted that the dc to dc regulator only accepts 30V voltage as input voltage. A starting point for a project is to note down the dc dc regulator's usual output current, which is 1A. To ensure the reliability under power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set as 100 %. In most applications and prototypes, DC switcher's Surface Mount makes it suitable. There is a maximum frequency of 500kHz for this dc regulators. There is a 17mA volt supply current. The nominal supply current for this the controllers dc is 17mA.
UC3843AD Features
Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %
UC3843AD Applications
There are a lot of ON Semiconductor UC3843AD DC to DC converter applications.
- Injection molding machinery
- Direct power supply system
- Terrestrial set-top boxes
- Mobile phones
- Emergency lighting monitoring equipment
- Flexible manufacturing cells
- Program control systems
- Computer rooms
- Fire elevators
- PSRR circuits
