G751 台湾致新代理商 GMT 温度传感器和风扇控制器和风扇驱动器系列 数字接口温度传感器
Digital  Temperature  Sensor  and  Thermal  Watchdog  with Two-Wire Interface

General Description
The  G751  is  a  temperature  sensor,  Delta-Sigma  analog-to-digital  converter,  and  digital  over-  tem-perature  detector  with  SMBusinterface.  The  host  can query the G751 at any time to read temperature. The  open-drain  Over  temperature  Shutdown  (O.S.)  output  becomes  active  when  the  temperature  ex-ceeds a programmable limit. This pin can operate in either “Comparator” or “Interrupt” mode.

The  host  can  program  both  the  temperature  alarm  threshold  (TOS)  and  the  temperature  at  which  the  alarm  condition  goes  away  (THYST).  In  addition,  the  host  can  read  back  the  contents  of  the  G751's  TOSand  THYST  registers.  The  sensor  powers  up  in  Com-parator  mode  with  default  thresholds  of  50°C  TOS45°C  THYST.    for  G751-1  and  80°C  TOS ,  75°C  THYST for G751-2.

Features „
SMBus interface „
Programmable  Trip  Point  (TOS)  and  Hysteresis  (THYST) „
Separate open-drain output pin operates as interrupt or comparator at output „
Register readback capability „
Power  up  defaults  permit  stand-alone  opera-tion as thermostat
„Shutdown mode to minimize power con-sumption    „
Up to 8 G751s can be connected to a single bus

Key Specifications
„Supply  Voltage 3.0V  to  5.5V  „
Supply  Current  operating 280μA (typ) 1mA (max) /shutdown  2μA(typ) „
Temperature Accuracy -25°C to 100°C±2°C (max)/ -55°C to 125°C ±3°C (max)

Applications „
System Thermal Management „
Personal Computers „
Office Electronics
„Electronic Test Equipment

Ordering Information

P1: SOP-8; P8: MSOP-8; RD: TDFN3X3-8

Pin Configuration                                                                                                                            Typical Application Circuit

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