STTS751 2.25 V low-voltage local digital temperature sensor

The STTS751 is a digital temperature sensor which communicates over a 2-wire SMBus 2.0 compatible bus. The temperature is measured with a user-configurable resolution between 9 and 12 bits. At 9 bits, the smallest step size is 0.5 °C, and at 12 bits, it is 0.0625 °C. At the default resolution (10 bits, 0.25 °C/LSB), the conversion time is nominally 21 milliseconds.

The open-drain EVENToutput is used to indicate an alarm condition in which the measured temperature has exceeded the user-programmed high limit or fallen below the low limit. When the EVENTpin is asserted, the host can respond using the SMBus Alert Response Address (ARA) protocol to which the STTS751 will respond by sending its slave address.

The STTS751 is a 6-pin device that supports user-configurable slave addresses. Via the pull-up resistor on the Addr/Thermpin, one of four different slave addresses can be specified. Two order numbers (STTS751-0 and STTS751-1) provide two different sets of slave addresses bringing the total available to eight. Thus, up to eight devices can share the same 2-wire SMBus without ambiguity, thereby allowing monitoring of multiple temperature zones in an application.

The two-wire interface can support transfer rates up to 400 kHz. Two small footprint packages are available: a UDFN-6L and a standard SOT23-6L package

技术特性
  • Operating voltage 2.25 V to 3.6 V
  • Operating temperature –40 °C to +125 °C
  • Programmable
    • 10 different conversion rates 0.0625 to 32 conversions/sec. 1 conversion/sec. - default
    • 4 different resolutions 9-bit (0.5 °C/LSB) to 12-bit (0.0625 °C/LSB) 10-bit (0.25 °C/LSB) - default
  • Low supply current
    • 50 μA (typ) for 8 conversions/sec.
    • 20 μA (typ) for 1 conversion/sec.
    • 3 μA (typ) standby
  • Accuracy
    • ±1.0 °C (typ) 0 °C to +85 °C
    • ±2.0 °C (typ) –40 °C to +125 °C
  • One-shot mode for power saving
  • Fast conversion time 21 ms (typ) 10-bit
  • Pull-up resistor value allows single pin to select one of four slave addresses
  • Supports 400 kHz serial clock
  • SMBus 2.0 compatible
    • SMBus ALERT (ARA) support
    • SMBus timeout
  • RoHS/green
功能框图
STTS751 功能框图
STTS751 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
STTS751-0WB3F Active   1000 SOT23-6L Tape And Reel -40 °C-125 °C STTS751-0WB3F
STTS751-1WB3F Active   1000 SOT23-6L Tape And Reel -40 °C-125 °C STTS751-1WB3F
STTS751-0DP3F Active   1000 DFN6 2X2X0.5 Tape And Reel -40 °C-125 °C STTS751-0DP3F
STTS751-1DP3F Active   1000 DFN6 2X2X0.5 Tape And Reel -40 °C-125 °C STTS751-1DP3F
DATASHEET
描述 版本 大小
STTS751 :2.25 V low-voltage local digital temperature sensor 5 577KB
USER MANUALS
描述 版本 大小
UM1479: STEVAL-IPR002V1: M24LR64-R based data logger and event logger 1 3484KB
BOARDS AND TOOLS
型号 描述
STEVAL-IFS017V3 Temperature sensor daughter card based on the STTS751-1DP3F in UDFN package
STEVAL-IFS017V2 Temperature sensor daughter card based on the STTS751-0DP3F in UDFN package
STEVAL-IFS017V4 Temperature sensor daughter card based on STTS751-0WB3F in SOT package
STEVAL-IFS017V5 Temperature sensor daughter card based on the STTS751-1WB3F in SOT package
FLYERS
描述 版本 大小
STTS751 - High-accuracy 2.25 V digital temperature sensor with dual alarm 1.0.0 516KB