Overview
The LM2903QDGKRQ1 is a dual voltage comparator from Texas Instruments, designed for use in a variety of applications, particularly in the automotive and industrial sectors. It is part of the LM2903-Q1 and LM2903B-Q1 family, which are known for their robust performance and reliability. This component is AEC-Q100 qualified, ensuring it meets stringent automotive standards. The LM2903QDGKRQ1 offers improved specifications such as lower offset voltage, higher supply voltage capability, lower supply current, and enhanced ESD performance, making it a valuable choice for cost-sensitive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 2 | 36 | V | |
| Ambient Temperature (TA) | -40 | 125 | °C | |
| Input Voltage Range (VIVR) | -0.1 (V+) | 36 | V | |
| Total Supply Current (at 5 V) | 250 | 500 | μA | |
| Input Bias Current | 250 | nA | ||
| Propagation Delay Time (high-to-low) | 300 | 1000 | ns | |
| Output Voltage | 36 | V | ||
| Output Current | 20 | mA |
Key Features
- Qualified for automotive applications with AEC-Q100 Grade 1 temperature range of -40°C to +125°C and Grade 0 extended temperature range of -40°C to +150°C for the LM2903E-Q1.
- Lower offset voltage and higher supply voltage capability.
- Lower supply current and lower input bias current.
- Lower propagation delay and improved 2kV ESD performance.
- Drop-in replacement convenience.
- Operation from dual 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: Various industrial control systems.
- Appliances: Used in household and commercial appliances for voltage comparison tasks.
Q & A
- What is the operating temperature range of the LM2903QDGKRQ1?
The operating temperature range is -40°C to +125°C for the LM2903B-Q1 and -40°C to +150°C for the LM2903E-Q1. - What is the supply voltage range for the LM2903QDGKRQ1?
The supply voltage range is 2 V to 36 V. - What are the key improvements in the LM2903B-Q1 compared to the LM2903-Q1?
The LM2903B-Q1 has lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, and improved ESD performance. - Can the LM2903QDGKRQ1 operate from dual supplies?
Yes, it can operate from dual supplies as long as the difference between the two supplies is within 2 V to 36 V. - What is the maximum output current of the LM2903QDGKRQ1?
The maximum output current is 20 mA. - Is the LM2903QDGKRQ1 RoHS compliant?
Yes, the LM2903QDGKRQ1 is RoHS compliant. - What are the available package types for the LM2903QDGKRQ1?
The available packages include SOIC, TSSOP, VSSOP, WSON, and SOT-23. - Can the inputs of the LM2903QDGKRQ1 exceed the supply voltage?
Yes, the non-inverting input can exceed the VCC level without damage. - What is the propagation delay time of the LM2903QDGKRQ1?
The propagation delay time is typically 300 ns for TTL input signals and up to 1000 ns for small-scale input signals. - Is the LM2903QDGKRQ1 suitable for industrial applications?
Yes, it is suitable for various industrial control systems due to its robust specifications and reliability.
