LM64
- Accurately Senses Remote and Local Diode Temperatures
- Integrated PWM Fan Speed Control Output
- Programmable 8-step Lookup Table for Quieting Fans
- ALERT and T_Crit Open-drain Outputs
- Tachometer Input for Measuring Fan RPM
- 10 bit Plus Sign Remote Diode Temperature Data Format, with 0.125°C Resolution
- SMBus 2.0 Compatible Interface, Supports TIMEOUT
- 5 General Purpose Input/Output pins
- 5 General Purpose Default input pins
- 24-pin WQFN Package
- Key Specifications:
- Remote Diode Temperature Accuracy (includes quantization error)
- Ambient Temp
- 30°C to 50°C
- 0°C to 85°C
- Diode Temp
- 120°C to 140°C
- 25°C to 140°C
- Max Error
- ±1.0°C (max)
- ±3.0°C (max)
- Ambient Temp
- Local Temp Accuracy (includes quantization error)
- Ambient Temp 25°C to 125°C
- Max Error ±3.0°C (max)
- Power Supply Requirements
- Supply DC Voltage 3.0 V to 3.6 V
- Supply DC Current 1.1 mA (typ)
- Remote Diode Temperature Accuracy (includes quantization error)
The LM64 is a remote diode temperature sensor with PWM fan control. The LM64 accurately measures its own temperature and that of a remote diode. The LM64 remote temperature accuracy is factory trimmed for a MMBT3904 diode-connected transistor with a 16°C offset for high temperatures. TACTUAL DIODE JUNCTION = TLM64 + 16°C
The LM64 features a PWM, open-drain, fan control output, 5 GPIO (General Purpose Input/Output) and 5 GPD (General Purpose Default) pins. The 8-step Lookup Table allows for a non-linear fan speed vs. temperature transfer function often used to quiet acoustic fan noise.
技術文件
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檢視所有 1 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM64 ±1°C Remote Diode Temperature Sensor with PWM Fan Control and 5 GPIO's datasheet (Rev. B) | PDF | HTML | 2023年 12月 1日 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點