Overview
The VN5050AJ-E is a monolithic device produced by STMicroelectronics, utilizing their VIPower technology. It is designed to drive resistive or inductive loads with one side connected to ground. The device features an active VCC pin voltage clamp to protect against low energy spikes and complies with the ISO7637 transient compatibility standards. It includes an analog current sense that delivers a current proportional to the load current and offers various protection mechanisms such as undervoltage shut-down, overvoltage clamp, and thermal shutdown with automatic restart.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Max Supply Voltage (VCC) | 41 | V |
| Operating Voltage Range (VCC) | 4.5 to 36 | V |
| Max On-State Resistance (RON) | 50 | mΩ |
| Current Limitation (typ) | 16.5 | A |
| Off-State Supply Current (IS) | 2 | µA |
| Package Type | PowerSSO-12 |
Key Features
- General Features:
- Inrush current active management by power limitation
- Very low stand-by current
- 3.0V CMOS compatible input
- Optimized electromagnetic emission
- Very low electromagnetic susceptibility
- In compliance with the 2002/95/EC European directive
- Protection:
- Undervoltage shut-down
- Overvoltage clamp
- Load current limitation
- Self limiting of fast thermal transients
- Protection against loss of ground and loss of VCC
- Thermal shut down
- Reverse battery protection
- Electrostatic discharge protection
- Diagnostic Functions:
- Proportional load current sense
- High current sense precision for wide range currents
- Current sense disable
- Thermal shutdown indication
- Very low current sense leakage
Applications
The VN5050AJ-E is suitable for driving all types of resistive, inductive, and capacitive loads. It is particularly useful in automotive applications due to its robust protection features and compliance with automotive standards. It can also be used as an LED driver and in various other applications requiring high-side switching with current sensing and protection.
Q & A
- What is the maximum supply voltage for the VN5050AJ-E?
The maximum supply voltage (VCC) is 41 V.
- What is the operating voltage range for the VN5050AJ-E?
The operating voltage range is from 4.5 V to 36 V.
- What is the maximum on-state resistance of the VN5050AJ-E?
The maximum on-state resistance (RON) is 50 mΩ.
- What is the typical current limitation of the VN5050AJ-E?
The typical current limitation (ILIMH) is 16.5 A.
- What kind of protection does the VN5050AJ-E offer?
The device offers undervoltage shut-down, overvoltage clamp, load current limitation, thermal shut down, reverse battery protection, and electrostatic discharge protection.
- How does the analog current sense function in the VN5050AJ-E?
The analog current sense delivers a current proportional to the load current when CS_DIS is driven low or left open.
- What is the package type of the VN5050AJ-E?
The package type is PowerSSO-12.
- Is the VN5050AJ-E compliant with any specific European directive?
Yes, it is in compliance with the 2002/95/EC European directive.
- What are the diagnostic functions of the VN5050AJ-E?
The device includes proportional load current sense, high current sense precision, current sense disable, thermal shutdown indication, and very low current sense leakage.
- Can the VN5050AJ-E be used in automotive applications?
Yes, it is suitable for automotive applications due to its robust protection features and compliance with automotive standards.
