LM96194 具有 PI 风扇控制的 TruTherm 硬件监控器，用于工作站管理
The LM96194 hardware monitor has a two wire digital interface compatible with SMBus 2.0. Using a ΣΔ ADC, the LM96194 measures the temperature of four remote diode connected transistors as well as its own die and 9 power supply voltages. The LM96194 has new TruTherm technology that supports precision thermal diode measurements of processors on sub-micron processes.
To set fan speed, the LM96194 has two PWM outputs that are each controlled by up to six temperature zones. The fan-control algorithm can be based on a lookup table, PI (proportional/integral) control loop, or a combination of both. The LM96194 includes digital filters that can be invoked to smooth temperature readings for better control of fan speed such that acoustical noise is minimized
|
LM96194 |
| Resolution (Bits) |
9 |
| Analog Inputs |
8 to 6, V+ |
| ADC Resolution (Bits) |
8 |
| Interface Type |
SMBus |
| Supply Max (Volt) |
3.6 |
| Supply Min (Volt) |
3 |
| Category |
Thermal Management |
| Fan Control Method |
PI and Lookup Table |
| Fan Control Output(s) |
2 PWM, 22.5kHz |
| Fan Speed Inputs |
4 |
| GPIOs |
8 GPIO, 1 GPI, RESET |
| Interrupt Outputs (Count) |
1 |
| Quiescent Current (mA) |
1.6 |
| Reference Voltage |
|
| Temp Resolution |
9-bit/0.5degC |
| TruTherm(TM) Beta Compensation |
Yes |
| VID Inputs |
7 |
LM96194 特性
- ΣΔ ADC architecture
- Monitors 9 power supplies
- Monitors 4 remote thermal diodes and 2 LM60
- New TruTherm technology support for precision thermal diode measurements
- Internal ambient temperature sensing
- Programmable autonomous fan control based on temperature readings with fan boost support
- Fan boost support on tachometer limit error event
- Fan control based on 13-step lookup table or PI Control Loop or combination of both
- PI fan control loop supports Tcontrol
- Temperature reading digital filters
- 0.5°C digital temperature sensor resolution
- 0.0625°C filtered temperature resolution for fan control
- 2 PWM fan speed control outputs
- 4 fan tachometer inputs
- Processor thermal throttling ( ^PROCHOT) monitoring
- Dynamic VID monitoring (6/7 VIDs per processor) supports VRD10.2/11
- 8 general purpose I/Os:
- 4 can be configured as fan tachometer inputs
- 2 can be configured to connect to processor ^THERMTRIP
- 2 are standard GPIOs that could be used to monitor ^IERR signal
LM96194 器件用途
- Servers
- Workstations
- Processor based equipment
LM96194 应用技术支持与电子电路设计开发资源下载
- LM96194 数据资料 dataSheet 下载.PDF
- TI 德州仪器温度监控和风扇控制产品选型与价格
- (用户指南)S±1°C Remote Diode Temp Sensor with PWM Fan Control and 5 GPIO`s User Guide
- (白皮书)Cost Effective Partitioning of IO & Mgm Func in PCs - Intro of SensorPath Tech
- (应用手册)Applying I2C Compatible Temperature Sensors in Systems with Slow Clock Edges
- (应用手册)Sensing and Monitoring for Control and Protection Seminar
- (应用手册)TruTherm Technology Presentation
