サポート・ソフトウェア
DIGITALTEMPSENSORSEVM-SW — Eval Board Software for Hardware Monitors and Digital Temp Sensors
Evaluation Board Software for Hardware Monitors and Digital Temperature Sensors
LM89
- Accurately senses die temperature of remote ICs or diode junctions
- Offset register allows sensing a variety of thermal diodes accurately
- On-board local temperature sensing
- 10 bit plus sign remote diode temperature data format, 0.125 °C resolution
- T_CRIT_A# output useful for system shutdown
- ALERT# output supports SMBus 2.0 protocol
- SMBus 2.0 compatible interface, supports TIMEOUT
- 8-pin MSOP and SOIC packages
Key Specifications
| Supply Voltage | 3.0 V to 3.6 V |
| Supply Current | 0.8 mA (typ) |
| Local Temp Accuracy (includes quantization error) | |
| TA=25°C to 125°C | ±3.0 °C (max) |
| Remote Diode Temp Accuracy (includes quantization error) | |
| TA=30°C,TD=80°C | ±0.75 °C (max) |
| TA=30°C to 50°C, TD=60°C to 100°C | ±1.0 °C (max) |
| TA=0°C to 85°C, TD=25°C to 125°C | ±3.0 °C (max) |
The LM89 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) serial interface. The LM89 accurately measures its own temperature as well as the temperature of an external device, such as processor thermal diode or diode-connected transistor such as the 2N3904. The temperature of any ASIC can be accurately determined using the LM89 as long as a dedicated diode (semiconductor junction) is available on the target die. The LM89 remote sensor accuracy of ±0.75°C is factory trimmed for the series resistance and 1.0021 typical non-ideality factor of the Intel® Pentium™ 4 and the Mobile Pentium™ 4 Processor-M thermal diode. The LM89 has an Offset register to allow measuring other diodes without requiring continuous software management. Contact hardware.monitor.team@nsc.com to obtain the latest data for new processors.
The LM89 and the LM89-1 have the same functions but different SMBus slave addresses. This allows for one of each to be on the bus at the same time.
Activation of the ALERT# output occurs when any temperature goes outside a preprogrammed window set by the HIGH and LOW temperature limit registers or exceeds the T_CRIT temperature limit. Activation of the T_CRIT_A# occurs when any temperature exceeds the T_CRIT programmed limit. The LM89 is pin and register compatible with the LM86, LM90, Analog Devices ADM1032 and Maxim MAX6657/8.
技術資料
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2 をすべて表示 | 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| * | データシート | 0.75C Accurate, Remote Diode & Local Dig Temp Sensor w/2-Wire Interface (jp) データシート (Rev. B 翻訳版) | 最新英語版 (Rev.D) | PDF | HTML | 2004年 12月 9日 | |
| ユーザー・ガイド | LM86, LM89, LM89-1, LM90, LM99, LM99-1 Evaluation Board User’s Guide | 2012年 2月 29日 |
設計と開発
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。
ドライバまたはライブラリ
LM90SW-LINUX — Linux ドライバ、LM90 用
The Linux driver supports the LM90 series of Remote and Local Temp Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- (...)
サポート・ソフトウェア
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
| 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 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
購入と品質
記載されている情報：
- 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
- 使用材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
記載されている情報：
- ファブ拠点
- アセンブリ拠点