UC3844D
| Parameters | |
|---|---|
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 14-SOIC (0.209, 5.30mm Width) |
| Number of Pins | 14 |
| Operating Temperature | 0°C~70°C TA |
| Packaging | Tube |
| Published | 2002 |
| JESD-609 Code | e0 |
| 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 | UC3844 |
| 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) | 10V~30V |
| Control Features | Frequency Control |
| Topology | Boost, Flyback |
| Control Mode | CURRENT-MODE |
| Frequency - Switching | Up to 500kHz |
| Input Voltage (Max) | 25V |
| Control Technique | PULSE WIDTH MODULATION |
| Rise Time | 45ns |
| Synchronous Rectifier | No |
| Fall Time (Typ) | 35 ns |
| Switcher Configuration | SINGLE |
| Max Duty Cycle | 50 % |
| Duty Cycle (Max) | 48% |
| Length | 8.65mm |
| Width | 3.9mm |
| RoHS Status | RoHS Compliant |
UC3844D Overview
The switching controller fits in the 14-SOIC (0.209, 5.30mm Width) package and is ideal for most applications. For outputs of 1, this dc motor controller is suitable. There is a Tube solid enclosure around the pmic. With Transistor Driver dc switching's output (s), it is able to handle it. dc controls with 10V~30V voltage are supplied and operated. Qualified to work in a 0°C~70°C TA dc switcher. In this switching controller, the switch can be set to Up to 500kHz. It is suitable for general dc dc regulator when it is set to Surface Mount. In order to control switching efficiently, the dcdc regulator features Frequency Control. An analog IC with the SWITCHING CONTROLLER signal is connected to the switch converters. A switching converters's terminal (s) sits at the DUAL position. 14 terminations with various dc switching's functions. To name a few of the control techniques these dc dc converter ics adapt, it includes PULSE WIDTH MODULATION. There is a DC switcher's nominal voltage of 15V. A search for "UC3844" will reveal other relevant dc to dc converter ics. Switching converter has a total of 14 pins. There is a particular type of Switching Regulator or Controllers in switching converter. Test statistics indicate DC regulator outputs 5.1V voltage. The dc to dc regulator can only accept 25V input voltage. It's important to remember that the dc dc regulator's normaloutput current is 1A, 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 50 %. In most applications and prototypes, DC switcher's Surface Mount makes it suitable. It runs on a supply current of 17mA. The nominal current supply of this the controllers dc is 17mA.
UC3844D Features
Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 50 %
UC3844D Applications
There are a lot of ON Semiconductor UC3844D DC to DC converter applications.
- Computed tomography (CT)
- Scientific testing
- Wide-range voltage regulation circuits
- ATMs
- Household control circuits
- Scientific research
- Lathes
- Low output voltage switching power supply circuits
- Serial communication converter
- Large fire protection systems
