Overview
The VNQ7050AJTR is a quad-channel high-side driver manufactured by STMicroelectronics using their proprietary VIPower M0-7 technology. This device is housed in a PowerSSO-16 package and is designed to drive 12 V automotive grounded loads through a 3 V and 5 V CMOS-compatible interface. It integrates advanced protective functions and diagnostic capabilities, making it suitable for demanding automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 38 | V |
| Reverse DC Supply Voltage (-VCC) | 0.3 | V |
| Maximum Transient Supply Voltage (VCCPK) | 40 | V |
| Maximum Jump Start Voltage (VCCJS) | 28 | V |
| DC Output Current (IOUT) | Internally limited | A |
| Reverse DC Output Current (-IOUT) | 16 | A |
| Junction Operating Temperature (Tj) | -40 to 150 | °C |
| Storage Temperature (Tstg) | -55 to 150 | °C |
| Supply Current in Standby (ISTBY) | 0.5 to 3 | µA |
Key Features
- Automotive qualified
- Quad channel smart high-side driver with analog current sense feedback
- Very low standby current
- Compatible with 3 V and 5 V CMOS outputs
- CurrentSense diagnostic functions with high precision proportional current mirror
- Overload and short to ground (power limitation) indication
- Thermal shutdown indication
- OFF-state open-load detection
- Output short to VCC detection
- Sense enable/disable
- Protections: undervoltage shutdown, overvoltage clamp, load current limitation, self-limiting of fast thermal transients, configurable latch-off on overtemperature or power limitation
- Loss of ground and loss of VCC protection
- Reverse battery protection with external components
- Electrostatic discharge protection
Applications
The VNQ7050AJTR is designed for use in automotive systems, particularly in applications requiring high reliability and robust protection features. It is suitable for driving various automotive loads such as lamps, relays, and motors. Additionally, it can be used in battery management systems and other low-voltage applications where advanced diagnostic and protective functions are necessary.
Q & A
- What is the VNQ7050AJTR used for?
The VNQ7050AJTR is a quad-channel high-side driver used to drive 12 V automotive grounded loads and is designed for automotive applications requiring advanced protective and diagnostic functions.
- What package does the VNQ7050AJTR come in?
The VNQ7050AJTR is housed in a PowerSSO-16 package.
- What are the key protective features of the VNQ7050AJTR?
The device includes protections such as undervoltage shutdown, overvoltage clamp, load current limitation, thermal shutdown, and configurable latch-off on overtemperature or power limitation.
- How does the VNQ7050AJTR handle thermal management?
The device features thermal shutdown and self-limiting of fast thermal transients, with a junction operating temperature range of -40 to 150°C.
- What is the purpose of the FaultRST pin?
The FaultRST pin is used to unlatch the output in case of a fault and can also set the outputs in auto-restart mode if kept low.
- How does the CurrentSense function work?
The CurrentSense function provides an analog feedback of the load current through a high precision proportional current mirror.
- What is the standby current of the VNQ7050AJTR?
The standby current is very low, typically 0.5 µA at 25°C and up to 3 µA at 125°C.
- Is the VNQ7050AJTR compatible with CMOS outputs?
Yes, it is compatible with both 3 V and 5 V CMOS outputs.
- What kind of diagnostic capabilities does the VNQ7050AJTR offer?
The device offers various diagnostic capabilities including overload indication, thermal shutdown indication, OFF-state open-load detection, and output short to VCC detection.
- How does the device protect against reverse battery conditions?
The device can be protected against reverse battery conditions using external components such as diodes and resistor networks.
