Overview
The TL331B-Q1 is a next-generation, single voltage comparator designed by Texas Instruments. This device is part of the TL331 family and is optimized for cost-sensitive applications, particularly in the automotive sector. It is AEC-Q100 qualified, ensuring reliability and performance in harsh automotive environments. The TL331B-Q1 offers improved features such as lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current compared to its predecessors.
Key Specifications
| Specification | TL331B-Q1 | Units |
|---|---|---|
| Supply Voltage | 2 to 36 | V |
| Total Supply Current (5V to 36V max) | 0.43 | mA |
| Temperature Range | –40 to 125 | °C |
| ESD (HBM) | 2000 | V |
| Offset Voltage (Max over temp) | ± 4 | mV |
| Input Bias Current (typ / max) | 3.5 / 25 | nA |
| Response Time (typ) | 1 | µsec |
| Differential Input Voltage Range | –36 to 36 | V |
| Output Voltage | 0 to 36 | V |
| Output Current | 0 to 20 | mA |
Key Features
- Qualified for automotive applications and AEC-Q100 certified with temperature grades 0, 1, and 3.
- Wide range of supply voltage from 2V to 36V.
- Low supply-current drain independent of supply voltage: 0.43mA typical.
- Low input bias current: 3.5nA typical.
- Low input offset voltage: 0.37mV typical.
- Differential input voltage range equal to the maximum-rated supply voltage, ±36V.
- Input range includes ground.
- Output compatible with TTL, MOS, and CMOS.
- Dedicated ESD protection cells with improved negative input voltage handling.
Applications
- Automotive systems, including HEV/EV and power train applications.
- Infotainment and cluster systems.
- Body control modules.
Q & A
- What is the TL331B-Q1?
The TL331B-Q1 is a single voltage comparator designed for automotive applications, offering improved performance and reliability.
- What are the key features of the TL331B-Q1?
Key features include a wide supply voltage range, low supply current, low input bias current, low input offset voltage, and compatibility with TTL, MOS, and CMOS outputs.
- What are the temperature ranges for the TL331B-Q1?
The device operates over a temperature range of –40°C to 125°C.
- Is the TL331B-Q1 AEC-Q100 certified?
Yes, the TL331B-Q1 is AEC-Q100 certified, ensuring it meets automotive reliability standards.
- What is the typical supply current of the TL331B-Q1?
The typical supply current is 0.43mA.
- What is the input bias current of the TL331B-Q1?
The input bias current is 3.5nA typical.
- What is the differential input voltage range of the TL331B-Q1?
The differential input voltage range is ±36V.
- Can the TL331B-Q1 be used in non-automotive applications?
While it is optimized for automotive use, its robust features make it suitable for other applications requiring similar specifications.
- How does the TL331B-Q1 compare to its predecessors?
The TL331B-Q1 offers lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current compared to earlier models.
- What package options are available for the TL331B-Q1?
The device is available in a 5-pin SOT-23 package.
