Overview
The NCV7518MWTXG, produced by onsemi, is a programmable six-channel low-side MOSFET pre-driver designed for controlling and protecting N-type logic-level MOSFETs. This device is part of the FLEXMOS family of products, which offers application scalability through the choice of external MOSFETs. It is particularly suited for automotive and other applications requiring unique site and control change requirements, and it is AEC-Q100 qualified and PPAP capable.
The NCV7518MWTXG features a combination of serial SPI and parallel inputs, making it versatile for various control scenarios. It includes internal power-on reset, reset and enable inputs, and open-drain fault flag outputs. The device is designed to monitor external MOSFET drain voltages for fault conditions and provides programmable fault detection and recovery modes.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| DC Supply - VLOAD | -0.3 | 40 | V | |
| DC Supply - VCC1, VCC2, VDD | -0.3 | 5.8 | V | |
| Difference Between VCC1 and VCC2 | ±0.3 | V | ||
| Junction Temperature, TJ | -40 | 150 | °C | |
| VLOAD Power Supply Voltage | 7.5 | 18.0 | V | |
| Main Power Supply Voltage (VCC1) | 4.75 | 5.25 | V | |
| Gate Drivers Power Supply Voltage (VCC2) | VCC1 - 0.3 | VCC1 + 0.3 | V | |
| Serial Output Driver Power Supply Voltage (VDD) | 3.0 | VCC1 | V | |
| Logic High Input Voltage (VIN High) | 2.0 | VCC1 | V | |
| Logic Low Input Voltage (VIN Low) | 0 | 0.8 | V | |
| Ambient Still-air Operating Temperature (TA) | -40 | 125 | °C |
Key Features
- 16-bit SPI with Parity and Frame Error Detection
- 3.3 V/5 V Compatible Parallel and Serial Control Inputs
- 3.3 V/5 V Compatible Serial Output Driver
- Reset and Enable Inputs
- Open-drain Fault Flag
- Priority Encoded Diagnostics with Latched Unique Fault Type Data:
- Shorted Load, Short to GND
- Open Load with Fast Charge Option
- On and Off State Pulsed Mode Diagnostics
- Ratiometric Diagnostic References and Currents
- Programmable:
- Shorted Load Fault Detection Thresholds
- Fault Recovery Mode
- Blanking Timers
- Wettable Flanks Pb-Free Packaging
- AEC-Q100 Qualified and PPAP Capable
Applications
The NCV7518MWTXG is designed for various automotive and industrial applications where robust and reliable MOSFET control is necessary. It is particularly useful in systems that require flexible and programmable fault detection and protection, such as:
- Automotive power management systems
- Industrial motor control systems
- Power supplies and DC-DC converters
- High-reliability industrial automation
Q & A
- What is the NCV7518MWTXG used for?
The NCV7518MWTXG is a six-channel low-side MOSFET pre-driver used for controlling and protecting N-type logic-level MOSFETs in various automotive and industrial applications.
- What are the key features of the NCV7518MWTXG?
Key features include 16-bit SPI with parity and frame error detection, 3.3 V/5 V compatible inputs and outputs, reset and enable inputs, open-drain fault flag, and programmable fault detection and recovery modes.
- What is the operating temperature range of the NCV7518MWTXG?
The device operates in an ambient still-air temperature range of -40°C to 125°C.
- What types of fault detection does the NCV7518MWTXG support?
The device supports detection of shorted loads, shorts to ground, open loads with fast charge options, and on and off state pulsed mode diagnostics.
- Is the NCV7518MWTXG AEC-Q100 qualified?
Yes, the NCV7518MWTXG is AEC-Q100 qualified and PPAP capable, making it suitable for automotive applications.
- What is the package type of the NCV7518MWTXG?
The device is packaged in a 32-pin QFN (Quad Flat No-Lead) package with an exposed pad.
- Can the NCV7518MWTXG be controlled via both serial and parallel inputs?
Yes, the device can be controlled by a combination of serial SPI and parallel inputs.
- What is the purpose of the internal power-on reset (POR) in the NCV7518MWTXG?
The internal power-on reset monitors VCC1 and holds all GATX outputs low until sufficient power is available.
- How does the NCV7518MWTXG handle fault recovery?
Fault recovery operation for each channel is programmable and can be selected for latch-off or automatic retry.
- What is the significance of the wettable flanks Pb-Free packaging of the NCV7518MWTXG?
The wettable flanks Pb-Free packaging ensures that the device is lead-free and suitable for applications requiring high reliability and environmental compliance.
