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KA3842A

Features: · Low Start-Up Current· Maximum Duty Cycle· U/V Lockout With Hysteresis· Operating Freguency Up To 500khzPinoutSpecifications Characteristic SYMBOL RATING UNITS Supply Voltage VCC 30 V Output Current IO ±1 A Analog Inputs VI -0.3 to...

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SeekIC No. : 004383694 Detail

KA3842A: Features: · Low Start-Up Current· Maximum Duty Cycle· U/V Lockout With Hysteresis· Operating Freguency Up To 500khzPinoutSpecifications Characteristic SYMBOL RATING UNITS Supply...

KA3842A Data Sheet

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Part Number:
KA3842A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/28

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Product Details

Description



Features:

· Low Start-Up Current
· Maximum Duty Cycle
· U/V Lockout With Hysteresis
· Operating Freguency Up To 500khz




Pinout

Connection Diagram




Specifications

Characteristic
SYMBOL
RATING
UNITS
Supply Voltage
VCC
30
V
Output Current
IO
±1
A
Analog Inputs
VI
-0.3 to VCC
V
Error Amp Output Sink Current
ISINK (E.A)
10
mA
Power Dissipation (TA = 25°C)
PO
1
W

* Fin is soldering on the PCB




Product Product status Eco Status Pricing* Package type Leads Packing method Package Drawing
KA3842ACS Full Production RoHS Compliant $0.39 DIP 8 RAIL
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples





Description

The KA3842AC/KA3842AE are fixed PWM controller for Off Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem pole output for driving a POWER MOSFET. Also KA3842AC/KA3842AE provides low start up current below 0.3mA and short shutdown delay time typ. 100ns. The KA3842AC/KA3842AE has UVLO threshold of 16V(on) and 10V(off). The KA3842AC/KA3842AE can operate within 100% duty cycle.






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