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Product Detailed Parameters
- Description：IC H/W MONITOR 56-SSOP
- Series：-
- Mfr：Nuvoton Technology Corporation
- Package：Tube
- Function：Hardware Monitor
- Sensor Type：External
- Sensing Temperature：External Sensor
- Accuracy：±1°C
- Topology：ADC (Sigma Delta), Multiplexer, Register Bank
- Output Type：I2C
- Output Alarm：Yes
- Output Fan：Yes
- Voltage - Supply：4.75V ~ 5.25V
- Operating Temperature：0°C ~ 70°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：56-BSSOP (0.295", 7.50mm Width)
- Supplier Device Package：56-SSOP
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Overview
The W83793G is a hardware monitor IC designed for high-end computer systems like servers and workstations. It monitors power supply voltages, fan speeds, and temperatures to ensure stable operation. The device features an integrated 10-bit ADC, supporting monitoring of 10 analog voltage inputs, 12 fan tachometer inputs, and 6 remote temperatures. It includes a Watch Dog Timer and provides 8 PWM/DC fan outputs with Smart Fan control modes. The component operates at 5V and utilizes an SMBus 2.0 interface with ARP support.
Feature Summary
- Supports System Management Bus (SMBus) version 2.0 specification with Address Resolution Protocol compatibility.
- Complies with ASF 2.0 sensor specifications for network management in OS-absent status.
- Provides intelligent fan speed control through Thermal Cruise and Smart Fan II modes.
- Integrates a Watch Dog Timer function with system reset capabilities.
Applications
- High-end server systems
- Workstation platforms
- Network management applications requiring OS-absent monitoring
Procurement Notes
Verify the specific revision level against the datasheet revision history before procurement. Confirm that the application design accommodates the 56-pin SSOP package dimensions. Ensure the power supply circuitry meets the specified bypass capacitor requirements for the 5VSB and 5VDD pins to maintain signal integrity and compliance with absolute maximum ratings.
Selection Notes
Select this component when comprehensive hardware monitoring is required for critical infrastructure. It is suitable for designs needing multiple voltage, temperature, and fan channels within a single IC. Consider the W83793AG if fewer thermal diode inputs and VcoreB monitoring are sufficient for the specific application requirements.
Part Context
The W83793G is an evolving version of the W83792D, adding innovative features such as ASF 2.0 compliance and SMBus 2.0 ARP command support. It serves as a specialized interface IC for system health monitoring. The device is manufactured by Nuvoton Technology Corporation and is part of their hardware monitor product line.
Replacement Considerations
The W83793AG is a reduced-functionality version of the W83793G with the same 56-pin SSOP package. It lacks three sets of thermal diode inputs, VcoreB input, and VIDB. Verify pin compatibility and functional requirements before substituting.
FAQ
How does the W83793G handle address conflicts in multi-device I2C setups?
The W83793G supports SMBus 2.0 ARP commands to dynamically assign new addresses after sending the UDID, resolving address conflict problems for up to four devices wired together.
What fan control modes are available on the W83793G?
The device provides Smart Fan control modes including Thermal Cruise mode for maintaining specific temperature ranges and Smart Fan II mode which allows eight temperature sets to control fan duty cycles automatically.
