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L4990A

PinoutSpecifications Symbol Parameter Value Unit VCC Supply Voltage (ICC < 50mA) (*) selflimit V IOUT Output Peak Pulse Current 1.5 A Analog Inputs & Outputs (6,7) -0.3 to 8 V Analog Inputs & Outputs (1,2,3,4,5,15,14 13) -0.3 to 6 V Ptot Power Dissi...

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SeekIC No. : 004389182 Detail

L4990A: PinoutSpecifications Symbol Parameter Value Unit VCC Supply Voltage (ICC < 50mA) (*) selflimit V IOUT Output Peak Pulse Current 1.5 A Analog Inputs & Outputs (6,7) ...

L4990A Data Sheet

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Part Number:
L4990A
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: 2024/11/21

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Product Details

Description



Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
VCC Supply Voltage (ICC < 50mA) (*) selflimit V
IOUT Output Peak Pulse Current 1.5 A
  Analog Inputs & Outputs (6,7) -0.3 to 8 V
Analog Inputs & Outputs (1,2,3,4,5,15,14 13) -0.3 to 6 V
Ptot Power Dissipation @ Tamb = 70°C 1 W
Tj Junction Temperature, Operating Range -25 to 125 °C
Tstg Storage Temperature, Operating Range -55 to 150 °C



Description

This primary controller I.C L4990A., developed in BCD60II technology, has been designed to implement off line or DC-DC power supply applications using a fixed frequency current mode control.

Based on a standard current mode PWM controller L4990A  includes some features as programmable soft start, IN/OUT synchronization, disable (to be used for over voltage protection and for power management), precise maximum Duty Cycle Control, 100ns (typ) leading edge blanking on current sense, pulse by pulse current limit and overcurrent protection with soft start intervention.




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