Overview
The VNQ5050AK-E is a monolithic device produced by STMicroelectronics, utilizing their VIPower M0-5 technology. This quad-channel high-side driver is designed for driving resistive or inductive loads with one side connected to ground. It features an analog current sense that delivers a current proportional to the load current and includes various protection mechanisms such as undervoltage shutdown, overvoltage clamp, and thermal shutdown. The device is optimized for low electromagnetic emission and high electromagnetic susceptibility, making it suitable for automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 4.5 to 36 | V |
| Reverse DC Supply Voltage | 0.3 | V |
| DC Output Current (IOUT) | Internally limited | A |
| Reverse DC Output Current | 20 | A |
| On-state Resistance (RON) | 50 to 100 | mΩ |
| Clamp Voltage | 41 to 52 | V |
| Junction Operating Temperature (Tj) | -40 to 150 | °C |
| Storage Temperature (Tstg) | -55 to 150 | °C |
| Thermal Resistance Junction-Case (Rthj-case) | 2.8 | °C/W |
Key Features
- General Features:
- Inrush current active management by power limitation
- Very low standby current
- 3.0V CMOS compatible input
- Optimized electromagnetic emission
- Very low electromagnetic susceptibility
- In compliance with the 2002/95/EC European directive
- Protection:
- Undervoltage shutdown
- Overvoltage clamp
- Load current limitation
- Self limiting of fast thermal transients
- Protection against loss of ground and loss of VCC
- Thermal shutdown
- Reverse battery protection
- Electrostatic discharge protection
- Diagnostic Functions:
- Proportional load current sense
- High current sense precision for wide current range
- Current sense disable
- Thermal shutdown indication
- Very low current sense leakage
Applications
The VNQ5050AK-E is suitable for various applications, including:
- All types of resistive, inductive, and capacitive loads
- Suitable as an LED driver
- Automotive applications due to its robust protection features and compliance with automotive standards
Q & A
- What is the VNQ5050AK-E used for?
The VNQ5050AK-E is a quad-channel high-side driver used for driving resistive or inductive loads in automotive and other applications.
- What is the operating voltage range of the VNQ5050AK-E?
The operating supply voltage range is from 4.5V to 36V.
- What protection features does the VNQ5050AK-E have?
The device includes undervoltage shutdown, overvoltage clamp, load current limitation, thermal shutdown, reverse battery protection, and electrostatic discharge protection.
- How does the analog current sense function in the VNQ5050AK-E?
The analog current sense delivers a current proportional to the load current, and this function can be disabled by driving the CS_DIS pin high.
- What is the typical on-state resistance of the VNQ5050AK-E?
The on-state resistance (RON) is typically 50 to 100 mΩ.
- Is the VNQ5050AK-E suitable for LED driving?
- What is the junction operating temperature range of the VNQ5050AK-E?
The junction operating temperature range is from -40°C to 150°C.
- Does the VNQ5050AK-E have thermal shutdown protection?
- Is the VNQ5050AK-E compliant with any specific European directives?
- What is the package type of the VNQ5050AK-E?
The device is packaged in PowerSSO-24.
