Overview
The TMP235AEDBZRQ1 is an automotive-grade precision CMOS integrated-circuit linear analog temperature sensor produced by Texas Instruments. This device is part of the TMP23x-Q1 family, designed to serve various automotive applications ranging from powertrain to infotainment. The TMP235-Q1 provides an output voltage that is proportional to temperature, with a positive slope of 10 mV/°C over a wide temperature range of –40°C to +150°C. It operates with a supply voltage range of 2.3 V to 5.5 V and is known for its high accuracy, low power consumption, and strong output driver capability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBZ) | |
| Pins | 3 | |
| Operating Temperature Range | –40°C to +150°C | °C |
| Supply Voltage Range | 2.3 V to 5.5 V | V |
| Temperature Accuracy | ±2.5°C (maximum) over –40°C to +150°C | °C |
| Sensor Gain | 10 mV/°C | mV/°C |
| Output Voltage Offset at 0°C | 500 mV | mV |
| Quiescent Current | 9 µA (typical) | µA |
| Output Current | 500 µA (maximum) | µA |
| Load Capacitance | 1000 pF (maximum) | pF |
| Turn-On Time | 800 µs (typical) | µs |
Key Features
- AEC-Q100 qualified for automotive applications
- Functional Safety-Capable with documentation available for system design
- Tight accuracy across a wide temperature range: ±2.5°C (maximum) from –40°C to +150°C
- Positive slope sensor gain: 10 mV/°C, 500 mV at 0°C
- Wide operating supply voltage range: 2.3 V to 5.5 V
- Short-circuit protected output
- Low power consumption: 9 µA (typical)
- Strong output for driving loads up to 1000 pF
- Available in SOT-23 (DBZ) and SC70 (DCK) surface mount packages
- Footprint compatible with industry-standard LMT8x-Q1, LM50-Q1, and LM20 temperature sensors
- Cost-effective alternative to thermistors
Applications
- Automotive head unit
- Electric power steering (EPS)
- Shifter system
- Battery management system (BMS)
- Gasoline engine
Q & A
- What is the operating temperature range of the TMP235AEDBZRQ1? The operating temperature range is –40°C to +150°C.
- What is the supply voltage range for the TMP235AEDBZRQ1? The supply voltage range is 2.3 V to 5.5 V.
- What is the sensor gain of the TMP235AEDBZRQ1? The sensor gain is 10 mV/°C.
- What is the typical quiescent current of the TMP235AEDBZRQ1? The typical quiescent current is 9 µA.
- What is the maximum output current of the TMP235AEDBZRQ1? The maximum output current is 500 µA.
- Is the TMP235AEDBZRQ1 AEC-Q100 qualified? Yes, it is AEC-Q100 qualified for automotive applications.
- What is the turn-on time of the TMP235AEDBZRQ1? The typical turn-on time is 800 µs.
- What is the maximum load capacitance the TMP235AEDBZRQ1 can drive? The maximum load capacitance is 1000 pF.
- In what packages is the TMP235AEDBZRQ1 available? It is available in SOT-23 (DBZ) and SC70 (DCK) surface mount packages.
- Is the TMP235AEDBZRQ1 a cost-effective alternative to thermistors? Yes, it is a cost-effective alternative to thermistors.
