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  • UC3842AN

UC3842AN

8 Terminals 10V~30V 8-Pin UC384*A DC to DC converter ICSWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver


  • Manufacturer: ON Semiconductor
  • Origchip NO: 598-UC3842AN
  • Package: 8-DIP (0.300, 7.62mm)
  • Datasheet: PDF
  • Stock: 746
  • Description: 8 Terminals 10V~30V 8-Pin UC384*A DC to DC converter ICSWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver (Kg)

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Details

Tags

Parameters
Mount Through Hole
Mounting Type Through Hole
Package / Case 8-DIP (0.300, 7.62mm)
Number of Pins 8
Operating Temperature 0°C~70°C TA
Packaging Tube
Published 2000
JESD-609 Code e0
Part Status Obsolete
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 8
ECCN Code EAR99
Terminal Finish Tin/Lead (Sn/Pb)
Subcategory Switching Regulator or Controllers
Technology BIPOLAR
Terminal Position DUAL
Terminal Pitch 2.54mm
Frequency 60kHz
Base Part Number UC384*A
Function Step-Up, Step-Up/Step-Down
Number of Outputs 1
Output Voltage 5.1V
Output Type Transistor Driver
Input Voltage-Nom 15V
Voltage 5V
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
Control Technique PULSE WIDTH MODULATION
Rise Time 40ns
Synchronous Rectifier No
Fall Time (Typ) 40 ns
Switcher Configuration SINGLE
Max Duty Cycle 100 %
Duty Cycle (Max) 96%
Height Seated (Max) 4.45mm
Width 7.62mm
RoHS Status Non-RoHS Compliant
Lead Free Lead Free

Description


For OffLine and DC to DC converter applications, the UC3842AN is a fixed PWM controller. UVLO, a low start-up current circuit, a temperature compensated reference, a high gain error amplifier, a current detecting comparator, and a high current totem-pole output for driving a POWER MOSFET are among the internal circuits. In addition, the UC3842AN has a low start-up current of less than 0.3mA and a short shutdown delay time of less than 100ns. The UVLO threshold of the UC3842AN is 16V (on) and 10V (off) (off). The UC3842AN has a 100 percent duty cycle capability.



Features


? Under Voltage Lock Out With Hysteresis

? Short Shutdown Delay Time: typ.100ns

? High Current Totem-pole Output

? Output Swing Limiting: 22V

? Low Start Current 0.2mA (typ)

? Operating Range Up To 500KHz

? Cycle by Cycle Current Limiting



Applications


? Power Modules

? Industrial PSU

? Battery Operated PSU

? Switch Mode Power Supplies (SMPS)

? DC-DC Converters