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  • UC3844D

UC3844D

14 Terminals 10V~30V 14-Pin UC3844 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver


  • Manufacturer: ON Semiconductor
  • Origchip NO: 598-UC3844D
  • Package: 14-SOIC (0.209, 5.30mm Width)
  • Datasheet: PDF
  • Stock: 910
  • Description: 14 Terminals 10V~30V 14-Pin UC3844 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver (Kg)

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Details

Tags

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