Overview
The NCV1124DR2G, produced by onsemi, is a monolithic integrated circuit designed to condition signals from variable-reluctance sensors used in monitoring rotating parts. This dual-channel device is particularly suited for automotive and industrial applications, providing robust signal conditioning and diagnostic capabilities.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Storage Temperature Range | −65 | 150 | °C | |
| Ambient Operating Temperature | −40 | 125 | °C | |
| Supply Voltage Range (continuous) | −0.3 | 7.0 | V | |
| Input Voltage Range (at any input, R1 = R2 = 22 k) | −250 | 250 | V | |
| Maximum Junction Temperature | 150 | °C | ||
| ESD Susceptibility (Human Body Model) | 2.0 kV | |||
| Supply Current (VCC = 5.0 V) | 5.0 mA | |||
| Input Threshold - Positive (VDIAG = Low) | 135 | 160 | 185 | mV |
| Input Threshold - Negative (VDIAG = Low) | −185 | −160 | −135 | mV |
| Output Low Voltage (IOUT = 1.6 mA) | 0.2 | 0.4 | V | |
| Output High Voltage (IOUT = −1.6 mA) | VCC - 0.5 | VCC - 0.2 | V |
Key Features
- Two independent channels for interfacing with variable-reluctance sensors.
- Internal hysteresis set at 160 mV for stable operation.
- Built-in diagnostic mode to test for sensor degradation or loss of physical connector.
- Designed to work from a 5.0 V ± 10% supply voltage.
- Pb-free packages available.
- Active clamp on each input to limit voltage and prevent substrate current injection.
- Input protection up to ±250 V with R1 = R2 = 22 kΩ.
Applications
- Anti-Skid Braking and Traction Control systems.
- Vehicle Stability Control systems.
- Drive Belt Slippage Detection.
- Crankshaft/Camshaft Position Sensing.
Q & A
- What is the primary function of the NCV1124DR2G?
The NCV1124DR2G is designed to condition signals from variable-reluctance sensors used in monitoring rotating parts.
- How many channels does the NCV1124DR2G have?
The NCV1124DR2G is a dual-channel device.
- What is the operating temperature range of the NCV1124DR2G?
The ambient operating temperature range is −40°C to 125°C.
- What is the supply voltage range for the NCV1124DR2G?
The supply voltage range is −0.3 V to 7.0 V.
- What is the purpose of the diagnostic mode in the NCV1124DR2G?
The diagnostic mode allows testing for degradation or loss of the physical connector to both sensors.
- What type of protection does the NCV1124DR2G offer for its inputs?
The device features active clamps to limit input voltage and prevent substrate current injection, protecting up to ±250 V with R1 = R2 = 22 kΩ.
- What are some typical applications of the NCV1124DR2G?
Typical applications include Anti-Skid Braking and Traction Control, Vehicle Stability Control, Drive Belt Slippage Detection, and Crankshaft/Camshaft Position Sensing.
- What is the maximum junction temperature for the NCV1124DR2G?
The maximum junction temperature is 150°C.
- Is the NCV1124DR2G available in Pb-free packages?
- How does the internal hysteresis in the NCV1124DR2G affect its operation?
The internal hysteresis set at 160 mV ensures stable operation by preventing oscillations around the threshold voltage.
