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
| Part Number | Vin (V)min. | Vin (V) max. | Remote CH | Local CH | Interface | Slave Address |
Accuracy (°C) | Note | Package |
| G751 | 3 | 5.5 | / | 1 | SMBus | 1001xxx | ±2 | 8 slave addresses 9 bits resolution |
TDFN3X3-8/ MSOP-8 |
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
| ORDER NUMBER (Pb free/Green) | TOS THYST | PACKAGE |
| G751-1P1f | 50°C/45°C | SOP-8 |
| G751-2P1f | 80°C/75°C | SOP-8 |
| G751-2P8f | 80°C/75°C | MSOP-8 |
| G751-2RDf | 80°C/75°C | TDFN3X3-8 |
P1: SOP-8; P8: MSOP-8; RD: TDFN3X3-8
Pin Configuration Typical Application Circuit
