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  • UC3845DG4

UC3845DG4

14 Terminals 12V~28V 14-Pin UC3845 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 500kHz Transistor Driver


  • Manufacturer: Texas Instruments
  • Origchip NO: 815-UC3845DG4
  • Package: 14-SOIC (0.154, 3.90mm Width)
  • Datasheet: -
  • Stock: 801
  • Description: 14 Terminals 12V~28V 14-Pin UC3845 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 500kHz Transistor Driver (Kg)

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Details

Tags

Parameters
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 2 days ago)
Mounting Type Surface Mount
Package / Case 14-SOIC (0.154, 3.90mm Width)
Surface Mount YES
Number of Pins 14
Weight 122.413241mg
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 14
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
Frequency 450kHz
Base Part Number UC3845
Function Step-Up, Step-Down, Step-Up/Step-Down
Number of Outputs 1
Output Voltage 13.5V
Output Type Transistor Driver
Input Voltage-Nom 15V
Analog IC - Other Type SWITCHING CONTROLLER
Output Configuration Positive, Isolation Capable
Power Dissipation 725mW
Output Current 200mA
Voltage - Supply (Vcc/Vdd) 12V~28V
Control Features Frequency Control
Topology Buck, Boost, Flyback, Forward Converter
Control Mode CURRENT-MODE
Frequency - Switching 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
Switcher Configuration BUCK-BOOST
Max Duty Cycle 50 %
Input Current 11mA
Duty Cycle (Max) 48%
Height 1.75mm
Length 8.65mm
Width 3.91mm
Thickness 1.58mm
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free

UC3845DG4 Overview


As a result of 14-SOIC (0.154, 3.90mm Width) compact design, the switching controller is compatible with most applications. There is sufficient capacity to generate switching controller for outputs 1. The pmic is packaged in Tube solid enclosure. With Transistor Driver dc switching's output (s), it is able to handle it. A 12V~28V voltage is supplied to the dc control and used for operating it. Qualified to work in a 0°C~70°C TA dc switcher. With this switching controller, you can switch at 500kHz. It is suitable for general dc dc regulator when it is set to Surface Mount. DCDC regulator is controlled efficiently by Frequency Control. Connected to a SWITCHING CONTROLLER analog IC, the switch converters are connected to a power supply. switching converters terminal (s) are designed to be at DUAL. Different dc switching's functions can be applied to 14 terminations. It includes PULSE WIDTH MODULATION as one of the control techniques dc dc converter ic adapts. DC switcher's voltage input of 15V. Other relevant dc to dc converter ics will be returned if you search "UC3845". There are 14 pins on switching converter. Particularly, switching converter is a type of Switching Regulator or Controllers. DC regulator outputs 13.5V voltage according to the test statistics. You should note down the dc dc regulator's usual output current of 200mA when you start a project. Voltage regulator dc to dc is designed to operate at 50 % duty cycle during power-ups and power-downs to ensure reliability. There is 450kHz frequency setting on the switching controller. It is possible to set the input voltage as 25V for nominal working statuses. It is important that the controller is supplied with 25mA more than 25mA volts of current. If there is 11mA current flow input, then the switching converter could operate.

UC3845DG4 Features


Transistor Driver Outputs
Switching Frequency: 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 50 %
Frequency: 450kHz

UC3845DG4 Applications


There are a lot of Texas Instruments UC3845DG4 DC to DC converter applications.

  • Product burn-in
  • Refrigerators of central air conditioners
  • Emergency lighting monitoring equipment
  • Various precision measuring detectors
  • Production lines
  • Scientific research
  • Remotely powered electric motors
  • Milling machines
  • PSRR circuits
  • Planers