Overview
The LM239PW, produced by Texas Instruments, is a quad differential comparator integrated circuit. It is part of the LMx39 and LM2901 family of comparators, known for their versatility and wide range of operating voltages. The LM239PW is designed to operate from a single power supply, making it suitable for various applications requiring multiple comparator functions. However, it is important to note that the LM239PW is no longer in production and has been scheduled for obsolescence.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2 to 30 | V |
| Differential Input Voltage | ±30 | V |
| Input Bias Current (typ/max) | 25 / 250 | nA |
| Total Supply Current (5V to 30V max) | 1 to 2.5 | mA |
| Response Time (typ) | 1.3 | µsec |
| ESD Rating (HBM) | 1000 | V |
| Offset Voltage (Max over temp) | ±9 | mV |
| Temperature Range | -25 to 85 | °C |
| Output Compatibility | TTL, MOS, CMOS |
Key Features
- Four independent voltage comparators in a single package.
- Wide supply voltage range: 2V to 30V.
- Low input bias current: 25 nA (typical) and 250 nA (maximum).
- Low supply current: 1 to 2.5 mA.
- Fast response time: 1.3 µsec (typical).
- High ESD rating: 1000 V (HBM).
- Output compatible with TTL, MOS, and CMOS logic.
- Common-mode input voltage range includes ground.
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 LM239PW? The LM239PW is a quad differential comparator integrated circuit produced by Texas Instruments.
- Why is the LM239PW no longer in production? The LM239PW has been scheduled for obsolescence and is being discontinued by the manufacturer.
- What is the supply voltage range of the LM239PW? The supply voltage range is from 2V to 30V.
- What is the typical response time of the LM239PW? The typical response time is 1.3 µsec.
- Is the LM239PW ESD protected? Yes, it has an ESD rating of 1000 V (HBM).
- What are the typical applications of the LM239PW? Applications include vacuum robots, single-phase UPS systems, server power supplies, cordless power tools, and more.
- Is the LM239PW compatible with different logic families? Yes, it is compatible with TTL, MOS, and CMOS logic.
- What is the temperature range of the LM239PW? The temperature range is from -25°C to 85°C.
- How many independent comparators does the LM239PW contain? It contains four independent voltage comparators.
- What is the input bias current of the LM239PW? The typical input bias current is 25 nA, and the maximum is 250 nA.
