CJ125
Control and amplifier circuit for wide range oxygen sensor Bosch LSU4.x
Application & Technical Summary
CJ125 is the ideal companion for Bosch oxygen sensor LSU4.x. It includes all circuitry for accurate sensor operation.
CJ125 supports the continuous regulation of Lambda in the range of ʎ= 0.65 to ∞ (air).
Product benefits
- Pump current control
- Pump current sense amplifier
- Lambda output amplifier
- Nernst cell reference voltage source
- Ri or Rical measurement for temperature control
- Programmable reference pumping currents
Integrated heater stage diagnosis
Monitoring of external heater stage for short- circuit to Vbat, short-circuit to ground and open load
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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LQFP32
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Features
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Oxgen sensor type
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Bosch LSU5.2 / 4.9 / ADV / 4.2
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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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LQFP32 (7 × 7 mm)
