CJ135
Control and amplifier circuit for wide range oxygen sensors by Bosch, NTK or DENSO
Application & Technical Summary
CJ135 is a control and amplifier circuit for the wide range oxygen sensors by Bosch, NTK or DENSO.
CJ135 supports the continuous regulation of Lambda in the range of ʎ= 0.65 to ∞ (air).
Product benefits
- Pump current control and measurement
- Lambda measurement result via SPI interface
- Nernst cell reference voltage source
- Extended sensor cell impedance measurement for temperature control
- Active blackening control for maximum sensor protection
- OBD II conformity
Increased accuracy
For increased accuracy - especially in the lean region - the sensor resistance is measured and regulated to keep sensor temperature at a constant level.
Technical Features
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Type
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Oxygen sensor control & evaluation IC
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Package
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Features
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Oxgen sensor type
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Interface
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SPI
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Tj min [°C]
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-40°C
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Tj max [°C]
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150°C
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TQFP_32ePad (7 × 7 mm)
