Overview
The STTS751-1DP3F, produced by STMicroelectronics, is a highly versatile and efficient digital temperature sensor. This device communicates over a 2-wire SMBus 2.0 compatible bus, supporting transfer rates up to 400 kHz. It is designed to measure temperature with a user-configurable resolution between 9 and 12 bits, making it suitable for a wide range of applications requiring precise temperature monitoring.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 2.25 V to 3.6 V |
| Operating Temperature Range | –40 °C to +125 °C |
| Resolution | 9-bit (0.5 °C/LSB) to 12-bit (0.0625 °C/LSB), 10-bit (0.25 °C/LSB) default |
| Conversion Rates | 0.0625 to 32 conversions/sec, 1 conversion/sec default |
| Supply Current | 50 μA (typ) for 8 conversions/sec, 20 μA (typ) for 1 conversion/sec, 3 μA (typ) standby |
| Accuracy | ±0.5 °C (typ) 0 °C to +85 °C, ±0.5 °C (typ) –40 °C to +125 °C |
| Conversion Time | 21 ms (typ) for 10-bit resolution |
| Interface Type | SMBus 2.0 compatible |
| Package Type | UDFN-6L |
| Mounting Method | Surface Mount |
| Storage Temperature Range | –55 °C to +150 °C |
| Moisture Sensitivity Level | 1 |
Key Features
- User-configurable resolution between 9 and 12 bits
- Programmable conversion rates from 0.0625 to 32 conversions/sec
- Low supply current: 50 μA (typ) for 8 conversions/sec, 20 μA (typ) for 1 conversion/sec, and 3 μA (typ) in standby
- High accuracy: ±0.5 °C (typ) over the operating temperature range
- Fast conversion time: 21 ms (typ) for 10-bit resolution
- One-shot mode for power saving
- Open-drain EVENT output for alarm conditions
- SMBus ALERT (ARA) support and SMBus timeout
- Supports up to eight devices on the same 2-wire SMBus without ambiguity
- RoHS/green compliant
Applications
- Solid state drives
- Portable electronics
- Notebook computers
- Smart batteries
- Servers
- Telecom equipment
Q & A
- What is the operating voltage range of the STTS751-1DP3F?
The operating voltage range is 2.25 V to 3.6 V.
- What are the available resolutions for the STTS751-1DP3F?
The resolutions range from 9-bit (0.5 °C/LSB) to 12-bit (0.0625 °C/LSB), with a default of 10-bit (0.25 °C/LSB).
- How many conversion rates are available for the STTS751-1DP3F?
The device supports 10 different conversion rates from 0.0625 to 32 conversions/sec, with a default of 1 conversion/sec.
- What is the typical supply current for the STTS751-1DP3F?
The typical supply current is 50 μA for 8 conversions/sec, 20 μA for 1 conversion/sec, and 3 μA in standby.
- What is the accuracy of the STTS751-1DP3F?
The accuracy is ±0.5 °C (typ) over the operating temperature range of –40 °C to +125 °C.
- How does the STTS751-1DP3F indicate alarm conditions?
The device uses an open-drain EVENT output to indicate when the measured temperature exceeds the user-programmed high limit or falls below the low limit.
- Can multiple STTS751-1DP3F devices share the same SMBus?
Yes, up to eight devices can share the same 2-wire SMBus without ambiguity by using different slave addresses selected via pull-up resistors.
- What is the storage temperature range for the STTS751-1DP3F?
The storage temperature range is –55 °C to +150 °C.
- Is the STTS751-1DP3F RoHS compliant?
Yes, the STTS751-1DP3F is RoHS/green compliant.
- What is the typical conversion time for the STTS751-1DP3F at 10-bit resolution?
The typical conversion time is 21 ms for 10-bit resolution.
- What interface does the STTS751-1DP3F use for communication?
The device communicates over a 2-wire SMBus 2.0 compatible bus.
