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UC3843D8

UC3843D8

UC3843D8

Texas Instruments

8 Terminals 12V~28V 8-Pin UC3843 DC to DC converter IC SWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver

SOT-23

UC3843D8 Datasheet

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In-Stock: 0 items
Specifications
Name Value
Type Parameter
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 1 day ago)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154, 3.90mm Width)
Surface Mount YES
Number of Pins 8
Weight 72.603129mg
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 8
ECCN Code EAR99
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Subcategory Switching Regulator or Controllers
Technology BICMOS
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Frequency 450kHz
Base Part Number UC3843
Function Step-Up, Step-Down, Step-Up/Step-Down
Number of Outputs 1
Output Voltage 5V
Output Type Transistor Driver
Input Voltage-Nom 15V
Analog IC - Other Type SWITCHING CONTROLLER
Operating Supply Current 11mA
Output Configuration Positive
Power Dissipation 650mW
Output Current 200mA
Voltage - Supply (Vcc/Vdd) 12V~28V
Quiescent Current 11mA
Control Features Frequency Control
Topology Boost, Buck, Buck-Boost, Flyback, Forward
Control Mode CURRENT-MODE
Frequency - Switching Up to 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 15V
Max Duty Cycle 100 %
Input Current 11mA
Duty Cycle (Max) 97%
Height 1.75mm
Length 4.9mm
Width 3.91mm
Thickness 1.58mm
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Pricing & Ordering
Quantity Unit Price Ext. Price
1 $1.62000 $1.62
500 $1.6038 $801.9
1000 $1.5876 $1587.6
1500 $1.5714 $2357.1
2000 $1.5552 $3110.4
2500 $1.539 $3847.5
UC3843D8 Product Details

UC3843D8 Overview


Capsuled in the 8-SOIC (0.154, 3.90mm Width) package, the switching controller can be used for a wide range of applications. There is enough capacity in the dc motor controller to generate the output for the 1 input. PMIC packaging is solid with a Tube enclosure. A total of Transistor Driver dc switching's outputs can be handled by it. Voltages 12V~28V are the dc control's supply voltage and operating voltage, respectively. Work well in dc switchers with a 0°C~70°C TA. Using this switching controller, it is possible to switch at Up to 500kHz. A generalization of dc dc regulator can be made using Surface Mount. To ensure efficient switching, this dcdc regulator features a 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. A variety of dc switching's functions can be performed on 8 terminations. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. DC switcher's voltage input is 15V. You can find other relevant dc to dc converter ics by searching "UC3843". Pins number 8 of switching converter in total. Specially, switching converter corresponds to type Switching Regulator or Controllers. Test statistics indicate DC regulator outputs 5V voltage. In most cases, the dc dc regulator's output current is 200mA. This information should be noted when you begin working with the component. As a result of this, the maximum duty cycle of the voltage regulator dc to dc must remain 100 % during power-up and power-down. Switching controller operates at 450kHz Hz. A dc switching in a dormant state uses 11mA. It is possible to set the input voltage as 15V for nominal working statuses. There should be 25mA current exceeding 25mA supplied to the controller. A current of 11mA is supplied to it. If there is 11mA current flow input, then the switching converter could operate.

UC3843D8 Features


Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %
Frequency: 450kHz


UC3843D8 Applications


There are a lot of Texas Instruments
UC3843D8 DC to DC converter applications.


  • Various precision measuring instruments
  • Various precision measuring detectors
  • Flaw detection equipment
  • Balance equipment
  • Industrial robots
  • Industrial controllers
  • Die casting equipment
  • Injection molding machinery
  • Various CNC machine tools
  • Machining centers

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