The EMC1428 is a high accuracy, low cost, System Management Bus (SMBus) temperature sensor. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to CPU diodes requiring the BJT or transistor model) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications.
Additionally, the EMC1428 provides a hardware programmable system shutdown feature that is programmed at part power-up via a single TRIP_SET voltage channel that cannot be masked or corrupted through the SMBus.
Each device provides ±1° accuracy for external diode temperatures and ±2°C accuracy for the internal diode temperature. The EMC1428 monitors up to eight temperature channels (up to seven external and one internal).
Additional Features Features
Hardware Thermal Shutdown
triggers dedicated SYS_SHDN# pin
hardware configured range 65°C to 127°C in 1°C steps
cannot be disabled or modified by software
Designed to support 45nm, 65nm, and 90nm CPU diodes
Supports diodes requiring the BJT or transistor model
Resistance Error Correction (up to 100 Ohms)
Up to seven External Temperature Monitors
±1°C Accuracy (60°C < TDIODE < 100°C)
0.125°C Resolution
Supports up to 2.2nF filter capacitor
Anti-parallel diodes for extra diode support and compact design
Internal Temperature Monitor
±2°C accuracy
3.3V Supply Voltage
Available in a 16 pin 4mm x 4mm QFN RoHs Compliant package
Programmable temperature limits for ALERT# Applications
Notebook Computers
Desktop Computers
Industrial
Embedded applications
The EMC1428 is a high accuracy, low cost, System Management Bus (SMBus) temperature sensor. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to CPU diodes requiring the BJT or transistor model) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications.
Additionally, the EMC1428 provides a hardware programmable system shutdown feature that is programmed at part power-up via a single TRIP_SET voltage channel that cannot be masked or corrupted through the SMBus.
Each device provides ±1° accuracy for external diode temperatures and ±2°C accuracy for the internal diode temperature. The EMC1428 monitors up to eight temperature channels (up to seven external and one internal).
Additional Features
Features
- Hardware Thermal Shutdown
- triggers dedicated SYS_SHDN# pin
- hardware configured range 65°C to 127°C in 1°C steps
- cannot be disabled or modified by software
- Designed to support 45nm, 65nm, and 90nm CPU diodes
- Supports diodes requiring the BJT or transistor model
- Resistance Error Correction (up to 100 Ohms)
- Up to seven External Temperature Monitors
- ±1°C Accuracy (60°C < TDIODE < 100°C)
- 0.125°C Resolution
- Supports up to 2.2nF filter capacitor
- Anti-parallel diodes for extra diode support and compact design
- Internal Temperature Monitor
- 3.3V Supply Voltage
- Available in a 16 pin 4mm x 4mm QFN RoHs Compliant package
- Programmable temperature limits for ALERT#
Applications
- Notebook Computers
- Desktop Computers
- Industrial
- Embedded applications
