LM63 具有集成风扇控制的准确远程二极管数字温度传感器
The LM63 is a remote diode temperature sensor with integrated fan control. The LM63 accurately measures: (1) its own temperature and (2) the temperature of a diode-connected transistor, such as a 2N3904, or a thermal diode commonly found on Computer Processors, Graphics Processor Units (GPU) and other ASIC's. The LM63 remote temperature sensor's accuracy is factory trimmed for the series resistance and 1.0021 non-ideality of the Intel 0.13 µm Pentium 4 and Mobile Pentium 4 Processor-M thermal diode. The LM63 has an offset register to correct for errors caused by different non-ideality factors of other thermal diodes. .
The LM63 also features an integrated, pulse-width-modulated (PWM), open-drain fan control output
|
LM63 |
| Resolution (Bits) |
11 |
| Interface Type |
SMBus |
| Supply Max (Volt) |
3.6 |
| Supply Min (Volt) |
3 |
| Category |
Thermal Management |
| Fan Control Method |
Lookup Table |
| Fan Control Output(s) |
1 PWM |
| Fan Speed Inputs |
1 |
| Interrupt Outputs (Count) |
1 |
| Quiescent Current (mA) |
1.3 |
| Temp Resolution |
11-bit/0.125degC |
| TruTherm(TM) Beta Compensation |
No |
LM63 特性
- Accurately senses diode-connected 2N3904 transistors or thermal diodes on-board large processors or ASIC's
- Accurately senses its own temperature
- Factory trimmed for Intel Pentium 4 and Mobile Pentium 4 Processor-M thermal diodes
- Integrated PWM fan speed control output
- Acoustic fan noise reduction with User-programmable 8-step Lookup Table
- Multi-function, user-selectable pin for either ^ALERT output, or Tachometer input, functions
- Tachometer input for measuring fan RPM
- Smart-Tach modes for measuring RPM of fans with pulse-width-modulated power as shown in typical application
- Offset register can adjust for a variety of thermal diodes
- 10 bit plus sign remote diode temperature data format, with 0.125°C resolution
- SMBus 2.0 compatible interface, supports TIMEOUT
- LM86-compatible pinout
- LM86-compatible register set
- 8-pin SOIC package
LM63 器件用途
- Computer Processor Thermal Management
- (Laptop, Desktop, Workstations, Servers)
- Graphics Processor Thermal Management
- Electronic Test Equipment
- Projectors
- Office Equipment
- Industrial Controls
LM63 应用技术支持与电子电路设计开发资源下载
- LM63 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 . xls
- (白皮书)Silicon Temperature Sensors Protect Your System
