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LM903

Features: `Flashing or continuous warning indication`Warning threshold externally adjustable`Control circuitry for thermal-resistive probe`Switch on reset and delay to avoid transients`600 mA flashing lamp drive capability`Short and open circuit probe detection`70V transient protection on supply a...

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SeekIC No. : 004396255 Detail

LM903: Features: `Flashing or continuous warning indication`Warning threshold externally adjustable`Control circuitry for thermal-resistive probe`Switch on reset and delay to avoid transients`600 mA flashi...

LM903 Data Sheet

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Part Number:
LM903
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: 2024/4/17

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Product Details

Description



Features:

`Flashing or continuous warning indication
`Warning threshold externally adjustable
`Control circuitry for thermal-resistive probe
`Switch on reset and delay to avoid transients
`600 mA flashing lamp drive capability
`Short and open circuit probe detection
`70V transient protection on supply and control input
`7V±18V supply range
`Internally regulated supply
`-40 to +80 operation


Specifications

Supply Voltage, VCC ..........................................................18V
Control Input Voltage (Pin 7) ............................................18V
Transient Voltage (Pins, 6, 7, 9) 10 ms (Note 1) ...............70V
Output Current (Pin 4) I4 (Sink) ....................................10 mA
Operating Temperature Range .........................-40 to +85
Storage Temperature .....................................-55 to +150
Maximum Junction Temperature ...................................+150
Lead Temperature (Soldering, 10 sec.) ..........................260


Description

The LM903 uses the thermal-resistive probe technique to measure the level of nonflammable fluids. A low fluid level is indicated by a warning lamp operating in continuous or flashing mode. All supervisory requirements to control the thermal-resistive probe, including short and open circuit probe detection, are incorporated within the device.

The circuit has possible applications in the detection of hydraulic fluid, oil level, etc., and may be used with partially conducting fluids.




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