Details

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BUY PT501A https://www.utsource.net/itm/p/12609623.html

Parameter	Description	Value
Part Number	Device Identifier	PT501A
Type	Component Type	Temperature Sensor
Operating Voltage	Supply Voltage Range	2.7V to 5.5V
Temperature Range	Operating Temperature	-40掳C to +125掳C
Accuracy	Measurement Accuracy	卤1掳C (at 25掳C)
Resolution	Temperature Resolution	0.0625掳C
Output Type	Digital Output	I2C, SMBus
Supply Current	Typical Operating Current	100 渭A
Conversion Time	Temperature Conversion Time	75 ms (max)
Package	Physical Package	TO-92
Dimensions	Package Dimensions	4.3 mm x 2.5 mm x 1.8 mm

Instructions for Use:

1. Power Supply:

   • Connect the VCC pin to a supply voltage between 2.7V and 5.5V.
   • Connect the GND pin to the ground.

2. I2C Communication:

   • Connect the SDA (Data) and SCL (Clock) pins to the corresponding I2C lines on your microcontroller.
   • Ensure pull-up resistors are connected to both SDA and SCL lines to VCC.

3. Initialization:

   • Send a start condition followed by the device address (0x48) and a write bit (0).
   • Write the configuration register (address 0x01) to set the desired resolution and conversion mode.

4. Reading Temperature:

   • Send a start condition followed by the device address (0x48) and a read bit (1).
   • Read the temperature data from the temperature register (address 0x00).

5. Interpreting Data:

   • The temperature data is a 16-bit value, with the most significant byte (MSB) containing the integer part and the least significant byte (LSB) containing the fractional part.
   • Convert the raw data to temperature using the formula: [ text{Temperature (掳C)} = left( text times 256 + text right) times 0.0625 ]

6. Shutdown Mode:

   • To reduce power consumption, set the shutdown bit in the configuration register. The device will enter low-power mode and stop conversions until it is re-enabled.

7. Handling:

   • Handle the PT501A with care to avoid static damage.
   • Ensure the operating temperature and voltage ranges are not exceeded to prevent damage to the sensor.

(For reference only)