Texas Instruments TLV321x-Q1 Automotive 40ns Push-Pull Comparator
Texas Instruments TLV321x-Q1 40ns Push-Pull Comparator is qualified for automotive applications and features an excellent speed-to-power combination. This quad-channel high-speed comparator offers a 40ns propagation delay and a 1.8V to 5V supply voltage range with a quiescent supply current of only 40µA per channel. The TLV3214-Q1 includes a power-on reset (POR) function that holds the output in a known state until the minimum supply voltage is reached, preventing output transients during system power-up and power-down. The push-pull output stage can sink and source large currents for symmetrical rise and fall times and quickly drive capacitive loads like MOSFET gates. Additional features include rail-to-rail inputs, fast response time, low offset voltage, and large output drive current. The TLV321x-Q1 push-pull comparator from TI is ideal for automotive head units, wireless and Onboard Chargers (OBC), telematics eCalls, and instrument clusters.
Features
- Qualified for automotive applications
- Excellent speed-to-power combination
- Well-suited for current sensing, zero-cross detection, and other applications where speed is critical
- Fast response time
- Rail-to-rail inputs
- Low offset voltage
- Large output drive current
- Push-pull output stage capable of sinking and sourcing large currents for symmetrical rise and fall times and quickly driving capacitive loads (MOSFET gates, etc.)
- POR for known start-up
Applications
- Telematics eCalls
- Automotive head units
- Instrument clusters
- Wireless chargers and OBC
Specifications
- 40ns propagation delay
- 40µA supply current per channel
- ±5mV maximum input offset voltage
- 1.8mV internal hysteresis
- Input voltage range extends 200mV beyond rails
- 1.8V to 5V supply voltage range
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: -40°C to +125°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C3
Block Diagram
Low-Side Current Sensing
