Overview
The LM393PSR, produced by Texas Instruments, is part of the next-generation B-version comparators in the LM393 and LM2903 family. These devices are designed to offer improved specifications over their predecessors, including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, and faster response times. The LM393B and LM2903B are drop-in replacements for the LM293, LM393, and LM2903 in both 'A' and 'V' grades, making them highly versatile for various applications.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit |
|---|---|---|---|
| Maximum Supply Voltage | - | 38 | V |
| ESD Rating (HBM) | - | 2000 | V |
| Input Offset Voltage | ±0.37 | ±2.5 | mV |
| Input Bias Current | 3.5 | 25 | nA |
| Supply Current per Comparator | 200 | - | µA |
| Response Time | 1 | - | µsec |
| Operating Temperature Range | - | 0 to 70 | °C |
| Common-Mode Input Voltage Range | - | Ground to VCC - 1.5V | V |
| Differential Input Voltage Range | - | ±38 V | V |
| Output Saturation Voltage | - | Low | V |
| Output Compatibility | - | TTL, MOS, CMOS | - |
Key Features
- Improved specifications of B-version comparators.
- Lower offset voltage: ±0.37 mV.
- Higher supply voltage capability: up to 38V.
- Lower supply current: 200 µA per comparator.
- Lower input bias current: 3.5 nA.
- Faster response time: 1 µsec.
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.
- Available in tiny 2 x 2mm WSON package.
- Drop-in replacement for LM293, LM393, and LM2903 in both 'A' and 'V' grades.
- 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 systems.
- Server power supplies.
- 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 LM393PSR?
The maximum supply voltage for the LM393PSR is up to 38V.
- What is the ESD rating for the LM393PSR?
The ESD rating for the LM393PSR is 2 kV (HBM).
- What is the typical input offset voltage for the LM393PSR?
The typical input offset voltage for the LM393PSR is ±0.37 mV.
- What is the typical input bias current for the LM393PSR?
The typical input bias current for the LM393PSR is 3.5 nA.
- What is the supply current per comparator for the LM393PSR?
The supply current per comparator for the LM393PSR is 200 µA.
- What is the response time of the LM393PSR?
The response time of the LM393PSR is 1 µsec.
- What is the operating temperature range for the LM393PSR?
The operating temperature range for the LM393PSR is 0 to 70°C.
- Is the LM393PSR compatible with TTL, MOS, and CMOS outputs?
Yes, the LM393PSR output is compatible with TTL, MOS, and CMOS.
- Can the LM393PSR be used as a drop-in replacement for other comparators?
Yes, the LM393PSR can be used as a drop-in replacement for LM293, LM393, and LM2903 in both 'A' and 'V' grades.
- What are some common applications of the LM393PSR?
The LM393PSR is used in various applications including vacuum robots, single-phase UPS systems, server power supplies, cordless power tools, wireless infrastructure, appliances, building automation, factory automation and control, motor drives, and infotainment and cluster systems.
