LM93
- 8-bit ΣΔ ADC
- Monitors 16 Power Supplies
- Monitors 2 Remote Thermal Diodes
- Internal Ambient Temperature Sensing
- Programmable Autonomous Fan Control Based on Temperature Readings with Fan Boost Support
- Fan Control Based on 13-step Lookup Table
- Temperature Reading Digital Filter
- 1.0°C Digital Temperature Sensor Resolution
- 0.5°C Temperature Resolution for Fan Control
- 2 PWM Fan Speed Control Outputs
- 4 Fan Tachometer Inputs
- Dual Processor Thermal Throttling (PROCHOT) Monitoring
- Dual Dynamic VID Monitoring (6 VIDs per Processor)
- 8 General Purpose I/Os:
- 4 Can be Configured as Fan Tachometer Inputs
- 2 Can be Configured to Connect to THERMTRIP from a Processor
- 2 are Standard GPIOs that Could be Used to Monitor IERR Signal
- 2 General Purpose Inputs that Can be Used to Monitor SCSI Termination Signals
- Limit Register Comparisons of All Monitored Values
- 2-wire, SMBus 2.0 Compliant, Serial Digital Interface
- Supports Byte/block Read and Write
- Configurable Slave Address (Tri-level Pin Selects 1 of 3 Possible Addresses)
- 2.5V Reference Voltage Output
- 56-pin TSSOP Package
- XOR-tree Test Mode
- Key Specifications
- Voltage Measurement Accuracy ±2% FS (max)
- Resolution 8-bits, 1°C
- Temperature Sensor Accuracy ±3°C (max)
- Temperature Range:LM93 Operational 0°C to +85°CRemote Temp Accuracy 0°C to +125°C
- Power Supply Voltage +3.0V to +3.6V
- Power Supply Current 0.9 mA
All trademarks are the property of their respective owners.
The LM93, hardware monitor, has a two wire digital interface compatible with SMBus 2.0. Using an 8-bit ΣΔ ADC, the LM93 measures the temperature of two remote diode connected transistors as well as its own die and 16 power supply voltages.
To set fan speed, the LM93 has two PWM outputs that are each controlled by up to four temperature zones. The fan-control algorithm is lookup table based. The LM93 includes a digital filter that can be invoked to smooth temperature readings for better control of fan speed. The LM93 has four tachometer inputs to measure fan speed. Limit and status registers for all measured values are included.
The LM93 builds upon the functionality of previous motherboard management ASICs and uses some of the LM85's features (i.e. smart tachometer mode). It also adds measurement and control support for dynamic Vccp monitoring and PROCHOT. It is designed to monitor a dual processor Xeon class motherboard with a minimum of external components.
技術資料
種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
---|---|---|---|---|---|---|
* | データシート | LM93 Hardware Monitor with Integrated Fan Control for Server Management データシート (Rev. E) | 2013年 3月 27日 |
設計および開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
LM93SW-LINUX — Linux ドライバ、LM93 用
Linux のメインライン・ステータス
Linux メインラインで利用可能か:はい
git.ti.com から入手可能か:N/A
- lm93
- lm94
このデバイスに関連付けられているファイル:
- drivers/hwmon/lm93.c
- Documentation/hwmon/lm93
SENSOREVAL — Eval Board Software For Hardware Monitors And Digital Temperature Sensors
SensorEval
SensorEval software supports the latest TI temperature sensor and hardware monitor evaluation boards via USB interface. It also allows access to sensors mounted directly on motherboards that support Intel chip sets.
- Download SensorEval Software and Manual
- Windows XP support is offered for (...)
サポート対象の製品とハードウェア
製品
デジタル温度センサ
高精度 ADC
パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
---|---|---|
TSSOP (DGG) | 56 | Ultra Librarian |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点