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CJ136 | Control and amplifier circuit for wide range oxygen sensors

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CJ136

Accelerated accuracy - for increased speed the measurement signal is available via UART

CJ136 is a one-chip solution for controlling oxygen sensors. All circuitry to keep the sensor operational is included in a single chip.

CJ136 supports the continuous regulation of Lambda in the range of ʎ= 0.65 to ∞ (air).

Accuracy is the same as CJ135 and CJ138 due to sensor resistance measurement and heating regulation to keep sensor temperature at a constant level.

Benefits

Pump current control and measurement

Lambda measurement result via SPI interface

UART interface for GM applications

Technical Features

Type
Oxygen sensor control & evaluation IC
Package
TQFP32ePad
Features
  • Lambda measurement
  • Probe temperature measurement
  • SPI-programmable controls
  • Diagnostic features
Oxgen sensor type
  • Bosch LSU5.2 / 4.9 / ADV
  • NTK ZFAS-U2 / U3
  • Denso Plus 5 / 6
Interface
  • In: IP, Nernst voltage
  • Out: Voltage digital on SPI and UART
Tj min [°C]
-40°C
Tj max [°C]
150°C
  • TQFP_32ePad (7 × 7 mm)
    TQFP_32ePad (7 × 7 mm)