Overview
The NCV7518MWATXG, produced by onsemi, is a programmable six-channel low-side MOSFET pre-driver belonging to the FLEXMOS family of automotive-grade products. This device is designed to control and protect N-type logic-level MOSFETs, offering high flexibility and scalability through the choice of external MOSFETs. It features a combination of serial SPI and parallel inputs, making it versatile for various applications. The device includes internal power-on reset, reset and enable inputs, and open-drain fault flag outputs, ensuring robust and reliable operation.
Key Specifications
| Characteristic | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| DC Supply - VLOAD | - | - | -0.3 | - | 40 | V |
| DC Supply - VCC1, VCC2, VDD | - | - | -0.3 | - | 5.8 | V |
| Difference Between VCC1 and VCC2 | - | - | -0.3 | - | 0.3 | V |
| Junction Temperature, TJ | - | - | -40 | - | 150 | °C |
| VCC1 Supply Operating Current | ICC1A | VCC1 = 5.25 V, VFLTREF = 2.75 V, RSTB = 0 | - | 2.80 | 5.0 | mA |
| GATX Output Resistance | RGATX | Output High or Low | 200 | 350 | 500 | Ω |
| GATX High Output Current | IGSRC | VGATX = 0 V | -26.25 | - | -9.5 | mA |
| Turn-On Propagation Delay | tP(ON) | INX to GATx | - | - | 1.0 | μs |
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
- Programmable Shorted Load Fault Detection Thresholds, Fault Recovery Mode, and Blanking Timers
- Ratiometric Diagnostic References and Currents
- Wettable Flanks Pb-Free Packaging
- AEC-Q100 Qualified and PPAP Capable
Applications
The NCV7518MWATXG is designed for a wide range of applications, particularly in the automotive sector due to its AEC-Q100 qualification. It is suitable for controlling and protecting N-type logic-level MOSFETs in various systems, including but not limited to:
- Automotive power management and control systems
- Industrial control and automation systems
- Power supplies and DC-DC converters
- Motor control and drive systems
- Other applications requiring robust and scalable MOSFET control
Q & A
- What is the NCV7518MWATXG used for?
The NCV7518MWATXG is a six-channel low-side MOSFET pre-driver used for controlling and protecting N-type logic-level MOSFETs in various applications.
- What are the key communication interfaces of the NCV7518MWATXG?
The device supports 16-bit SPI with Parity and Frame Error Detection, as well as parallel inputs.
- What are the voltage compatibility of the control inputs and output driver?
The control inputs and serial output driver are 3.3 V/5 V compatible.
- Does the NCV7518MWATXG have fault detection capabilities?
Yes, it has programmable fault detection thresholds for shorted loads, open loads, and other fault conditions.
- How does the device handle fault recovery?
Fault recovery operation for each channel is programmable and may be selected for latch-off or automatic retry.
- What is the significance of the internal power-on reset (POR)?
The internal POR monitors VCC1 and holds all GATX outputs low until sufficient power is applied, ensuring controlled power-up.
- What is the packaging type of the NCV7518MWATXG?
The device is packaged in a 32-pin QFN (Quad Flat No-Lead) with an exposed pad, which is Pb-Free and has wettable flanks.
- Is the NCV7518MWATXG suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
- What are the operating temperature ranges for the NCV7518MWATXG?
The device operates within a junction temperature range of -40°C to 150°C.
- How many channels does the NCV7518MWATXG support?
The device supports six independent channels for controlling external MOSFETs.
