JAJSOO4B September 2011 – June 2022 TMP100-Q1 , TMP101-Q1
PRODUCTION DATA
The TMP100-Q1 and TMP101-Q1 devices are used to measure the printed circuit board (PCB) temperature of the board location where the devices are mounted. The TMP100-Q1 features two address pins to allow up to eight devices to be addressed on a single I2C interface. The TMP101-Q1 device features one address pin and an ALERT pin, allowing up to three devices to be connected per bus. The TMP100-Q1 and TMP101-Q1 devices require no external components for operation except for pullup resistors on SCL, SDA, and ALERT (TMP101-Q1 device), although a 0.1-μF bypass capacitor is recommended.
The sensing device of the TMP100-Q1 and TMP101-Q1 devices is the chip itself. Thermal paths run through the package leads as well as the plastic package. The die flag of the lead frame is connected to GND. The lower thermal resistance of metal causes the leads to provide the primary thermal path. The GND pin of the TMP100-Q1 or TMP101-Q1 device is directly connected to the metal lead frame, and is the best choice for thermal input.