The CT7433 is an advanced 4-channel temperature sensor with SMBus/I²C interface, designed for applications in servers, computers and telecommunications equipment. The device offers 3 remote channels and 1 local channel, with a measurement accuracy of up to ±1°C and automatic β compensation, allowing precise temperature monitoring also in systems with modern processors (e.g. CPU, GPU, FPGA) without the need for manual calibration.

Characteristic features:

• 3 remote channels + 1 local channel
• automatic β compensation and diode type detection
• support for BJT model-compatible processor diodes
• SMBus/I²C digital interface with ARA (Alert Response Address) support
• local measurement resolution: 0.0625°C
• accuracy:
  • ±0.8°C (local channel)
  • ±1.5°C (remote channels, in the range 0-100°C)
• programmable temperature thresholds for ALERT and THERM outputs
• support for filter capacitors up to 2.2 nF
• operating temperature range: -40°C to +125°C
• enclosure: MSOP-10 or DFN3x3-10
• RoHS-compliant (halogen-free)

Applications:

• desktops and laptops
• servers and storage systems
• telecommunications equipment
• embedded systems
• temperature monitoring in power supplies, cooling systems, enclosures

Why choose the CT7433:

• multi-channel monitoring: simultaneous measurements of up to four heat sources
• advanced compensation functions: automatic adjustment to the characteristics of the processor diodes
• flexible integration: support of SMBus and I²C standards and a wide selection of slave addresses
• wireless