VNQ5050AK-E

VNQ5050AK-E is an automotive smart high-side switch. It integrates a power MOSFET with protection and control functions to switch a DC load directly from a logic signal, simplifying automotive power electronics.
Key points:
- Function: Enables VBAT to the load when commanded; provides current limiting and protective features.
- Protections: overcurrent/short-circuit, overtemperature, undervoltage, and reverse/short-to-battery scenarios; fault/diagnostic output for MCU monitoring.
- Interface: simple control input (IN/EN) and a fault/diagnostic output; designed for low-power control and easy MCU integration.
- Environment: designed for automotive/industrial 12–28 V networks with transient protection; RoHS compliant.
- Applications: lamps, actuators, pumps, and other automotive body/engine bay loads.
Note: Exact electrical ratings (current limit, on-resistance, voltage range) vary by variant. Always consult the latest datasheet for the VNQ5050AK-E to confirm specs for your design.

Equivalent automotive high-side switches with current limit (pinout and current rating vary; check before drop-in):
- TI TPS1H100-Q1
- TI TPS1H110-Q1
- Infineon TLE9250-1 / TLE9250V2
Note: verify ILIM, voltage range, package, and pinout for compatibility.

VNQ5050AK-E is ST’s 50 V VIPower smart high-side switch. Key features:
- 50 V maximum load switching with an integrated MOSFET.
- Current limit around 0.5 A, with short-circuit protection.
- Protections: overcurrent, overvoltage, undervoltage lockout, and thermal shutdown.
- Reverse-battery protection on input.
- Enable/Disable control via IN pin; output follows enable state.
- Diagnostic capability: fault/open-load/short conditions reported through a DIAG/STATUS output.
- Auto-retry fault handling (auto-retry after fault) and safe-off during faults.
- Low quiescent/off-state current; fast turn-on/turn-off.
- Automotive-grade/ECOPACK packaging suitable for harsh environments (AEC-Q100 qualified, RoHS).
Note: exact numbers and pins may vary by package revision; refer to the datasheet for pinout, typical current limit, and diagnostic behavior for your specific package.

- Pin count: 8 pins (8-pin package, e.g., SO-8/HVSON).
- Function: Automotive smart high-side switch (load switch). It connects VBAT to the load via OUT when enabled by the control input (IN/EN). Includes protections: reverse polarity, overcurrent (current limit), overtemperature, undervoltage lockout, and a diagnostic/FAULT output (and optional current-sense).

- Manufacturer: Nexperia
- What kind of company: A global Dutch semiconductor company (spin-off from Philips/NXP) that designs and manufactures discrete and logic semiconductors and protection devices (e.g., high-side switches, diodes, MOSFETs, ESD protection) for automotive, industrial, and consumer markets.

VNQ5050AK-E is a 5-A high-side switch with integrated protection for automotive power distribution. Applications include:
- Automotive body electronics: lighting (exterior/interior), actuators, sensors
- DC motors and solenoids: windows, wipers, seats, pumps
- Power rails for ECUs and controllers
- Any automotive load requiring reverse-polarity protection, overcurrent/short-circuit protection, undervoltage and thermal protection
It serves as a drop-in switch to replace relays in many automotive applications.

VNQ5050AK-E is offered in an 8-pin SO-8 (DIL-8) package, RoHS-compliant (Pb-free).