Overview
The LM2903BQPWRQ1 is a dual differential voltage comparator designed by Texas Instruments for automotive applications. This device operates from a single power supply over a wide voltage range of 2V to 36V, making it highly versatile. It features low supply current drain, low input offset voltage, and low input offset current, which are crucial for accurate and reliable comparator functionality. The LM2903BQPWRQ1 is pin-compatible with other popular voltage comparators such as LM193, LM393, LM2903, and LM2903V, enhancing its usability across various designs.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Number of channels | 2 | Output type | Open-collector |
| Propagation delay time (µs) | 1 | Vs (max) (V) | 36 |
| Vs (min) (V) | 2 | Vos (offset voltage at 25°C) (max) (mV) | 2.5 |
| Iq per channel (typ) (mA) | 0.2 | Input bias current (±) (max) (nA) | 25 |
| Rail-to-rail | No | Rating | Automotive |
| Operating temperature range (°C) | -40 to 125 | Features | Standard comparator |
| VICR (max) (V) | 0 | VICR (min) (V) | 34.5 |
| TI functional safety category | Functional Safety-Capable | Pin Count | 8 |
| Package/Case | TSSOP-8 |
Key Features
- Dual voltage comparator
- Operates from a single power supply over a wide voltage range (2V to 36V)
- Low supply current drain (0.2 mA per channel)
- Low input offset voltage (2.5 mV max at 25°C)
- Low input bias current (25 nA max)
- Pin-compatible with LM193, LM393, LM2903, and LM2903V
- Robust against electromagnetic interference
- Simplified circuit design with low power consumption
- Long-term stability and reliability guaranteed
- ESD protection to 2 kV (Human Body Model)
Applications
The LM2903BQPWRQ1 is commonly used in various automotive applications, including battery management systems, electric power steering, and vehicle lighting. It is also utilized in industrial applications such as motor control, sensor interfaces, and power supplies. Additionally, it is used in consumer electronics for audio amplifiers, voltage comparators, and voltage references.
Q & A
- Q: What is the operating voltage range of the LM2903BQPWRQ1?
A: The LM2903BQPWRQ1 can operate within a supply voltage range of +2V to +36V. - Q: Is the LM2903BQPWRQ1 suitable for automotive temperature variations?
A: Yes, the LM2903BQPWRQ1 maintains temperature stability and is designed to withstand automotive temperature fluctuations from -40°C to 125°C. - Q: What are the key features of the LM2903BQPWRQ1?
A: Key features include dual voltage comparator, wide supply voltage range, low supply current, low input offset voltage, and low input bias current. - Q: What are the common applications of the LM2903BQPWRQ1?
A: Common applications include automotive systems (battery management, electric power steering, vehicle lighting), industrial applications (motor control, sensor interfaces, power supplies), and consumer electronics (audio amplifiers, voltage comparators, voltage references). - Q: Is the LM2903BQPWRQ1 pin-compatible with other comparators?
A: Yes, it is pin-compatible with LM193, LM393, LM2903, and LM2903V. - Q: What is the propagation delay time of the LM2903BQPWRQ1?
A: The propagation delay time is 1 µs. - Q: Does the LM2903BQPWRQ1 have ESD protection?
A: Yes, it has ESD protection to 2 kV (Human Body Model). - Q: What is the package type of the LM2903BQPWRQ1?
A: The package type is TSSOP-8. - Q: What is the warranty period for the LM2903BQPWRQ1?
A: Typically, it comes with a 1-year warranty, but this can vary depending on the supplier. - Q: How can I ensure the authenticity of the LM2903BQPWRQ1?
A: Ensure you purchase from authorized distributors or suppliers who rigorously test and verify the credentials of original Texas Instruments manufacturers and authorized agents.
