IP1543

Features: • 4.5 to 40V operation over full temperature range• Reference voltage trimmed to 1% accuracy• Includes overvoltage, undervoltage and current sensing• Programmable time delays• SCR Crowbar drive of 300mA• Remote activation capability• Optional o...

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IP1543 Picture
SeekIC No. : 004375577 Detail

IP1543: Features: • 4.5 to 40V operation over full temperature range• Reference voltage trimmed to 1% accuracy• Includes overvoltage, undervoltage and current sensing• Programmable t...

floor Price/Ceiling Price

Part Number:
IP1543
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: 2024/10/30

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Product Details

Description



Features:

• 4.5 to 40V operation over full temperature range
• Reference voltage trimmed to 1% accuracy
• Includes overvoltage, undervoltage and current sensing
• Programmable time delays
• SCR "Crowbar" drive of 300mA
• Remote activation capability
• Optional overvoltage latch capability




Pinout

  Connection Diagram


Specifications

+VIN Input Supply Voltage ....................................................40V
Sense Inputs .........................................................................VIN
SCR Trigger Current ........................................Internally Limited
Indicator Output Voltage ...................................................+40V
Indicator Output Sink Current ............................................50mA
PD Power Dissipation TA = 25°C ............................................1W
Derate @ TA > 50°C ....................................................10mW/°C
PD Power Dissipation TC = 25°C ...........................................2W
Derate @ TC > 25°C ...................................................16mW/°C
TJ Operating Junction Temperature ....See Ordering Information
TSTG Storage Temperature Range ......................65 to +150°C
TL Lead Temperature (soldering, 10 seconds) ...............+300°C



Description

The IP1543 power supply supervisory circuits contain all the functions necessary to monitor and control the output of a sophisticated power supply system. Included on the chip are over-voltage (O.V.) sensing with externally programmable delay used to trigger an external SCR "Crowbar", under-voltage (U.V.) sensing with externally programmable delay used to sense either the power supply output or the line input voltage, a third op-amp/comparator with provision for external compensation and/or offset programming used for either current limiting or as an additional voltage monitor, and a voltage reference trimmed to ±1%.




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