Overview
The LM2903B-Q1, produced by Texas Instruments, is a next-generation dual comparator designed for cost-sensitive applications. It is part of the industry-standard LM2903 comparator family and offers several improvements over its predecessors. This device is qualified for automotive applications and meets the AEC-Q100 Grade 1 temperature range of -40°C to +125°C. It features lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, and improved ESD performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 2 | 36 | V | |
| Differential Input Voltage | -36 | 36 | V | |
| Input Voltage Range | -0.3 | 36 | V | |
| Output Voltage | 36 | V | ||
| Output Current | 20 | mA | ||
| Operating Junction Temperature | -40 | 125 | °C | |
| Input Offset Voltage | 0.37 | 7 | mV | |
| Input Bias Current | 3.5 | nA | ||
| Propagation Delay Time (High-to-Low) | 300 | 1000 | ns | |
| ESD Rating (HBM) | 2000 | V |
Key Features
- Qualified for automotive applications and meets AEC-Q100 Grade 1 temperature range of -40°C to +125°C.
- Lower offset voltage and higher supply voltage capability.
- Lower supply current and lower input bias current.
- Improved 2kV ESD performance.
- Drop-in replacement convenience.
- Operation from dual supplies with a difference between the two supplies within 2 V to 36 V.
- Outputs can be connected to other open-collector outputs.
Applications
- Automotive: HEV/EV and power train, infotainment and cluster, body control module.
- Industrial.
- Appliances.
Q & A
- What is the operating temperature range of the LM2903B-Q1? The operating temperature range is -40°C to +125°C.
- What is the maximum supply voltage for the LM2903B-Q1? The maximum supply voltage is 36 V.
- What is the typical input offset voltage of the LM2903B-Q1? The typical input offset voltage is 0.37 mV.
- What is the ESD rating of the LM2903B-Q1? The ESD rating is 2kV (HBM).
- Can the LM2903B-Q1 operate from dual supplies? Yes, it can operate from dual supplies with a difference between the two supplies within 2 V to 36 V.
- What are the typical applications of the LM2903B-Q1? Typical applications include automotive (HEV/EV and power train, infotainment and cluster, body control module), industrial, and appliances.
- What is the maximum output current of the LM2903B-Q1? The maximum output current is 20 mA.
- How does the LM2903B-Q1 compare to its predecessors in terms of performance? It offers lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, and improved ESD performance.
- Is the LM2903B-Q1 AEC-Q100 qualified? Yes, it is qualified for AEC-Q100 Grade 1.
- What are the available package options for the LM2903B-Q1? Available packages include SOIC, TSSOP, VSSOP, WSON, and SOT-23.
