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  • UC3843BN

UC3843BN

8 Terminals 7.6V~30V 8-Pin UC3843 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver


  • Manufacturer: STMicroelectronics
  • Origchip NO: 761-UC3843BN
  • Package: 8-DIP (0.300, 7.62mm)
  • Datasheet: PDF
  • Stock: 198
  • Description: 8 Terminals 7.6V~30V 8-Pin UC3843 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver (Kg)

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Details

Tags

Parameters
Factory Lead Time 14 Weeks
Lifecycle Status ACTIVE (Last Updated: 7 months ago)
Mount Through Hole
Mounting Type Through Hole
Package / Case 8-DIP (0.300, 7.62mm)
Number of Pins 8
Weight 930.006106mg
Operating Temperature 0°C~70°C TJ
Packaging Tube
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 8
ECCN Code EAR99
Terminal Finish Matte Tin (Sn) - annealed
Subcategory Switching Regulator or Controllers
Max Power Dissipation 800mW
Technology BIPOLAR
Terminal Position DUAL
Terminal Pitch 2.54mm
Frequency 250kHz
Base Part Number UC3843
Function Step-Up, Step-Up/Step-Down
Number of Outputs 1
Output Voltage 5.05V
Output Type Transistor Driver
Input Voltage-Nom 15V
Analog IC - Other Type SWITCHING CONTROLLER
Output Configuration Positive
Power Dissipation 800mW
Output Current 200mA
Voltage - Supply (Vcc/Vdd) 7.6V~30V
Max Supply Current 17mA
Control Features Frequency Control
Topology Boost, Flyback
Control Mode CURRENT-MODE
Frequency - Switching Up to 500kHz
Control Technique PULSE WIDTH MODULATION
Rise Time 50ns
Synchronous Rectifier No
Fall Time (Typ) 50 ns
Nominal Input Voltage 15V
Switcher Configuration SINGLE
Max Duty Cycle 100 %
Duty Cycle (Max) 96%
Height 3.32mm
Length 10.92mm
Width 6.6mm
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free

UC3843BN Overview


It comes in a 8-DIP (0.300, 7.62mm) package, so switching controller can be used for most applications. 1 outputs are supported by the dc motor controller. The pmic is packaged in Tube solid enclosure. There are Transistor Driver dc switching's output (s) that it can handle. Voltages 7.6V~30V are the dc control's supply voltage and operating voltage, respectively. A 0°C~70°C TJ dc switcher is not a problem. The switching controller can be switched at Up to 500kHz. It is suitable for general dc dc regulator when it is set to Through Hole. DCDC regulator is controlled efficiently by Frequency Control. An analog IC with the SWITCHING CONTROLLER signal is connected to the switch converters. The switching converters's terminal (s) are designed at DUAL . Various 8 terminations. PULSE WIDTH MODULATION is an example of one of the control techniques these dc dc converter ics adapt. 15V nominal DC switcher's voltage input. Search for "UC3843" to find other relevant dc to dc converter ics. The switching converter has a total of 8 pins. Switching converter is a type of Switching Regulator or Controllers in particular. DC regulator outputs 5.05V voltage according to the test statistics. If you are starting a new project, you should note the dc dc regulator's typical output current is 200mA. The duty cycle of the voltage regulator dc to dc can be set to 100 % on power-up or power-down to ensure reliability. As DC switcher has a Through Hole, it's suitable for most applications and prototype designs. A frequency of 250kHz is set for the switching controller. It is possible to set the input voltage to 15V for nominal working status. There is a possibility of damage to the component if the switching voltage regulators current exceeds 17mA.

UC3843BN Features


Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %
Frequency: 250kHz

UC3843BN Applications


There are a lot of STMicroelectronics UC3843BN DC to DC converter applications.

  • Energy management systems
  • Current source circuits
  • Electrical power transmission
  • Smoke prevention equipment
  • Ball screw pair
  • Refrigerators of central air conditioners
  • Smoke exhaust equipment
  • Computer rooms
  • Overvoltage protection circuits in TV sets
  • Fire elevators