Overview
The LM393DRE4, produced by Texas Instruments, is part of the next-generation B-version comparator family, including the LM393B and LM2903B. These devices are designed to replace the industry-standard LM393 and LM2903 comparators, offering improved specifications and enhanced performance. The LM393DRE4 features two independent voltage comparators that can operate from a single power supply over a wide range of voltages, making it versatile for various applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| VCC Supply Voltage | 0 to 38 | V |
| VID Differential Input Voltage | -38 to 38 | V |
| VI Input Voltage (either input) | -0.3 to 38 | V |
| IIK Input Current | -50 | mA |
| VO Output Voltage | -0.3 to 38 | V |
| IO Output Current | 25 | mA |
| ISC Duration of Output Short Circuit to Ground | Unlimited | |
| TJ Operating Virtual-Junction Temperature | 150 | °C |
| Tstg Storage Temperature | -65 to 150 | °C |
| Response Time | 1.3 | µs |
Key Features
- Improved specifications of B-version, including maximum rating up to 38 V and ESD rating (HBM) of 2k V.
- Low input offset voltage: 0.37 mV.
- Low input bias current: 3.5 nA.
- Low supply current: 200 µA per comparator.
- Faster response time of 1 µsec.
- Extended temperature range for LM393B.
- Available in tiny 2 x 2mm WSON package.
- B-version is a drop-in replacement for LM293, LM393, and LM2903, A and V versions.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V.
- Low output saturation voltage.
- Output compatible with TTL, MOS, and CMOS.
Applications
- Vacuum robots.
- Single-phase UPS.
- Server PSU.
- Cordless power tools.
- Wireless infrastructure.
- Appliances.
- Building automation.
- Factory automation and control.
- Motor drives.
- Infotainment and cluster systems.
Q & A
- What is the maximum supply voltage for the LM393DRE4?
The maximum supply voltage for the LM393DRE4 is up to 38 V. - What is the ESD rating for the LM393DRE4?
The ESD rating for the LM393DRE4 is 2k V (HBM). - What is the typical input offset voltage for the LM393DRE4?
The typical input offset voltage for the LM393DRE4 is 0.37 mV. - What is the typical input bias current for the LM393DRE4?
The typical input bias current for the LM393DRE4 is 3.5 nA. - What is the typical supply current per comparator for the LM393DRE4?
The typical supply current per comparator for the LM393DRE4 is 200 µA. - What is the response time for the LM393DRE4?
The response time for the LM393DRE4 is approximately 1.3 µs. - In what package is the LM393DRE4 available?
The LM393DRE4 is available in a tiny 2 x 2mm WSON package among others. - Is the LM393DRE4 compatible with other comparator versions?
Yes, the LM393DRE4 (B-version) is a drop-in replacement for LM293, LM393, and LM2903, A and V versions. - What is the common-mode input voltage range for the LM393DRE4?
The common-mode input voltage range for the LM393DRE4 includes ground. - What is the differential input voltage range for the LM393DRE4?
The differential input voltage range for the LM393DRE4 is equal to the maximum-rated supply voltage: ±38 V.
