Lm1946 Over/under Current Limit Diagnostic Circuit - National Semiconductor

The LM1946 provides the industrial or automotive system designer with over or under current limit detection superior to that of ordinary Transistor or comparator-based circuits. Each of the five independent Comparators CAN be used to monitor a separate load as either an over current or under current limit detector. Two Comparators monitoring a single load CAN function as a current window monitor. Current is sensed by monitoring the voltage drop across the wiring harness, pc board trace, or external sense resistor that feeds the load. Provisions for compensating the user set limits for wiring harness resistance variations over temperature and supply voltage variations are also available. When a limit is reached in one of the Comparators it turns on its output which CAN drive an external LED or microproc- essor. One side of the load CAN be grounded (not possible with ordinary Comparator designs), which is important for auto- motive systems. By National Semiconductor Corporation
LM1946 's PackagesLM1946 's pdf datasheet



LM1946 Pinout, Pinouts
LM1946 pinout,Pin out
This is one package pinout of LM1946,If you need more pinouts please download LM1946's pdf datasheet.

LM1946 Application circuits
LM1946 circuits
This is one application circuit of LM1946,If you need more circuits,please download LM1946's pdf datasheet.


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