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L9780

L9780

Active

L9780TR

Wide range air fuel sensor control interface

Operating RangeAutomotive
Supply Voltage Min Volt4.9
Supply Voltage Max Volt5.1
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
Operating Voltage Min Volt4.9
Operating Voltage Max Volt5.1
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeAutomotive
Package NameLQFP 48 7x7x1.4 mm

L9780 is an IC designed to interface a variety of wide range air fuel sensors.The device manages the oxygen pump of the wide range air fuel sensor by means of a voltage controlled current source (VCCS). The reference for the VCCS is generated by a PI controller with external compensation network in...
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Key features
  • Voltage controlled current source (VCCS) pump cell driver with selectable voltage clamp, offset compensation, diagnostic (short to battery) and 2 output channels
  • Impedance measurement of reference cell
  • 10-bit multiplexed A/D converter
  • Scaling amplifier with sample & hold and offset compensation
  • Control voltage amplifier with sample & hold and offset compensation
  • Synchronous or asynchronous functionality selectable via SPI
  • Heater FET driver with diagnostic (short to battery, short to ground, open circuit)
  • 4 possible levels for clean current
  • SPI with fault detection
  • Digital input and outputs compatible with 5 V or 3.3 V voltage supply
  • 2 channels available to connect compensation networks
  • Short to battery diagnostic on functional ground (pin SR)
  • Short to battery/ground diagnostic on voltage from reference cell (pin INRC)
  • -5 V internal supply
  • 4 MHz internal oscillator
  • Package: 48 pin LQFP
  • Technology: BCD5s_70 V
Out of Stock
Quantity $ per unit Savings
1-9$9.360%
10-24$8.4610%
25-99$8.0614%
100-249$7.0025%
250-499$6.6829%
500$6.1035%
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$9.36
Operating RangeAutomotive
Supply Voltage Min Volt4.9
Supply Voltage Max Volt5.1
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
Operating Voltage Min Volt4.9
Operating Voltage Max Volt5.1
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeAutomotive
Package NameLQFP 48 7x7x1.4 mm

L9780 is an IC designed to interface a variety of wide range air fuel sensors.The device manages the oxygen pump of the wide range air fuel sensor by means of a voltage controlled current source (VCCS). The reference for the VCCS is generated by a PI controller with external compensation network in...
Read More

Key features
  • Voltage controlled current source (VCCS) pump cell driver with selectable voltage clamp, offset compensation, diagnostic (short to battery) and 2 output channels
  • Impedance measurement of reference cell
  • 10-bit multiplexed A/D converter
  • Scaling amplifier with sample & hold and offset compensation
  • Control voltage amplifier with sample & hold and offset compensation
  • Synchronous or asynchronous functionality selectable via SPI
  • Heater FET driver with diagnostic (short to battery, short to ground, open circuit)
  • 4 possible levels for clean current
  • SPI with fault detection
  • Digital input and outputs compatible with 5 V or 3.3 V voltage supply
  • 2 channels available to connect compensation networks
  • Short to battery diagnostic on functional ground (pin SR)
  • Short to battery/ground diagnostic on voltage from reference cell (pin INRC)
  • -5 V internal supply
  • 4 MHz internal oscillator
  • Package: 48 pin LQFP
  • Technology: BCD5s_70 V