CJ136 | Control and amplifier circuit for wide range oxygen sensors

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)

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