Overview
The LM393PWRG3 is a dual differential comparator from Texas Instruments, part of the next-generation B-version of the industry-standard LM393 and LM2903 comparator family. These comparators are designed to operate from a single power supply over a wide range of voltages and feature significant improvements over their predecessors, including lower offset voltage, higher supply voltage capability, lower supply current, and improved ESD performance.
The LM393B and LM2903B devices, which include the LM393PWRG3, are drop-in replacements for the LM293, LM393, and LM2903 in both 'A' and 'V' grades. They consist of two independent voltage comparators and are known for their low input offset voltage, low input bias current, and fast response time.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | VS = 5 to 36V | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | TA = -40°C to +85°C | -3.5 | -25 | -50 | nA |
| Supply Current | VS = 5V, no load | 400 | 600 | µA | |
| Propagation Delay Time | TTL input signal, VO_PULLUP = 5V, VCM = VS/2, CL = 15pF, RL = 5.1k Ohm, TA = 25°C | 300 | ns | ||
| Common Mode Input Voltage Range | VS = 3 to 36V | 0 | VCC - 1.5 | V | |
| Differential Input Voltage Range | Maximum-rated supply voltage | ±38 V | V | ||
| Operating Temperature Range | 0 | 70 | °C | ||
| ESD Rating (HBM) | 2 kV |
Key Features
- Improved specifications of B-version: lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current.
- Maximum rating: up to 38V.
- ESD rating (HBM): 2kV.
- Low input offset voltage: 0.37mV.
- Low input bias current: 3.5nA.
- Low supply current: 200µA per comparator.
- Faster response time: 1µsec.
- Extended temperature range for LM393B.
- Available in tiny 2 x 2mm WSON package.
- B-version is drop-in replacement for LM293, LM393, and LM2903, for 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 robot.
- Single phase UPS.
- Server PSU.
- Cordless power tool.
- Wireless infrastructure.
- Appliances.
- Building automation.
- Factory automation & control.
- Motor drives.
- Infotainment & cluster.
- Chemical or gas sensor.
- Desktop PC.
- Motor Control: AC Induction.
- Weigh Scale).
Q & A
- What is the maximum supply voltage rating for the LM393PWRG3?
The maximum supply voltage rating for the LM393PWRG3 is up to 38V).
- What is the typical input offset voltage of the LM393PWRG3?
The typical input offset voltage of the LM393PWRG3 is ±0.37mV).
- What is the input bias current of the LM393PWRG3?
The input bias current of the LM393PWRG3 is typically -25nA).
- What is the propagation delay time of the LM393PWRG3?
The propagation delay time of the LM393PWRG3 is typically 300ns).
- What is the ESD rating of the LM393PWRG3?
The ESD rating of the LM393PWRG3 is 2kV (HBM)).
- What are the common-mode and differential input voltage ranges for the LM393PWRG3?
The common-mode input voltage range includes ground, and the differential input voltage range is equal to the maximum-rated supply voltage: ±38 V).
- Is the output of the LM393PWRG3 compatible with other logic families?
Yes, the output of the LM393PWRG3 is compatible with TTL, MOS, and CMOS).
- What is the operating temperature range for the LM393PWRG3?
The operating temperature range for the LM393PWRG3 is 0°C to 70°C).
- Can the LM393PWRG3 be used as a drop-in replacement for other comparators?
Yes, the LM393PWRG3 can be used as a drop-in replacement for LM293, LM393, and LM2903, for both 'A' and 'V' grades).
- What are some typical applications of the LM393PWRG3?
Typical applications include vacuum robots, single phase UPS, server PSUs, cordless power tools, wireless infrastructure, appliances, building automation, factory automation & control, motor drives, and infotainment & cluster systems).
- What package options are available for the LM393PWRG3?
The LM393PWRG3 is available in packages such as TSSOP (PW) and VSSOP).
