Overview
The VND5T050AK-E, produced by STMicroelectronics, is a monolithic double-channel high-side driver designed using the VIPower technology. This device is intended for driving resistive or inductive loads in 24 V automotive applications. It features a robust set of protections and diagnostic functions, making it suitable for demanding automotive environments. The device includes an analog current sense, which provides a current proportional to the load current, and various fault detection mechanisms such as overload, overtemperature, and short to VCC detection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Max. transient supply voltage (VCC) | 58 | V |
| Operating voltage range (VCC) | 8 to 36 | V |
| Typ. on-state resistance (per channel) (RON) | 50 | mΩ |
| Current limitation (typ.) (ILIM) | 34 | A |
| Off-state supply current (IS) | 2 | µA |
| Junction operating temperature (TJ) | -40 to 150 | °C |
| Storage temperature (Tstg) | -55 to 150 | °C |
| Thermal resistance, junction-to-case (RthJC) | 2.4 | °C/W |
| Thermal resistance, junction-to-ambient (RthJA) | See Figure 27 | °C/W |
Key Features
- Very low standby current
- 3.0 V CMOS compatible input
- Optimized electromagnetic emission and very low electromagnetic susceptibility
- Compliant with European directive 2002/95/EC
- Fault reset standby pin (FR_Stby)
- Proportional load current sense with high current sense precision
- Off-state open load detection, output short to VCC detection, overload and short to ground latch-off, and thermal shutdown latch-off
- Undervoltage shutdown, overvoltage clamp, load current limitation, and protection against loss of ground and VCC
- Thermal shutdown and electrostatic discharge protection
Applications
The VND5T050AK-E is suitable for driving all types of resistive, inductive, and capacitive loads in 24 V automotive applications. Its robust design and comprehensive set of protections make it ideal for use in various automotive systems where reliability and safety are critical.
Q & A
- What is the maximum transient supply voltage for the VND5T050AK-E?
The maximum transient supply voltage is 58 V.
- What is the operating voltage range for the VND5T050AK-E?
The operating voltage range is from 8 V to 36 V.
- What is the typical on-state resistance per channel for the VND5T050AK-E?
The typical on-state resistance per channel is 50 mΩ.
- What is the current limitation for the VND5T050AK-E?
The current limitation is typically 34 A.
- How does the VND5T050AK-E handle fault conditions such as overload or overtemperature?
The device latches off in case of overload or thermal shutdown and can be reset by a low level pass on the fault reset standby pin.
- What kind of diagnostic functions does the VND5T050AK-E offer?
The device offers proportional load current sense, off-state open load detection, output short to VCC detection, and other diagnostic functions.
- Is the VND5T050AK-E compliant with any specific automotive standards?
Yes, it is AEC-Q100 qualified and compliant with European directive 2002/95/EC.
- How does the VND5T050AK-E protect against electromagnetic interference?
The device is designed with optimized electromagnetic emission and very low electromagnetic susceptibility.
- What is the purpose of the fault reset standby pin (FR_Stby) in the VND5T050AK-E?
The FR_Stby pin is used to reset the device in case of latch-off due to overtemperature or overcurrent conditions.
- What are the thermal characteristics of the VND5T050AK-E?
The junction operating temperature range is -40°C to 150°C, and the thermal resistance, junction-to-case (RthJC), is 2.4°C/W.
