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LM1949 Datasheet Injector Drive Controller

Manufacturer: Texas Instruments

Overview: LM1949 www.ti.com SNLS349C – FEB 1995 – REVISED MARCH 2013 LM1949 Injector Drive Controller Check for Samples:.

General Description

The LM1949 linear integrated circuit serves as an excellent control of fuel injector drive circuitry in modern automotive systems.

The IC is designed to control an external power NPN Darlington transistor that drives the high current injector solenoid.

The current required to open a solenoid is several times greater than the current necessary to merely hold it open;

Key Features

  • 1.
  • 2 Low Voltage Supply (3V.
  • 5.5V).
  • 22 mA Output Drive Current.
  • No RFI Radiation.
  • Adaptable to All Injector Current Levels.
  • Highly Accurate Operation.
  • TTL/CMOS Compatible Input Logic Levels.
  • Short Circuit Protection.
  • High Impedance Input.
  • Externally Set Holding Current, IH.
  • Internally Set Peak Current (4 × IH).
  • Externally Set Time-Out.
  • Can be Modified for Full Switching Operation.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LM1949 LM1949 Injector Drive Controller National Semiconductor

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