STMicroelectronics VND9012AJTR

Overview

VND9012AJTR from STMicroelectronics is a double-channel automotive smart high-side driver in PowerSSO-16 package, designed for 12 V grounded loads with 3 V/5 V CMOS-compatible control. It delivers 12 mΩ on-state resistance per channel, 63 A typical current limitation, and 0.5 µA max standby current, enabling deep cold-cranking operation per LV124 Rev. 2013 in ADAS radar and sensor supply applications.

For engineers reviewing the VND9012AJTR datasheet, VND9012AJTR pinout, VND9012AJTR application, or VND9012AJTR equivalent, key selection criteria include multiplexed analog current sense accuracy (±7% at 4.75 A), configurable latch-off vs. auto-restart fault response, reverse battery protection via self-turn-on, and OFF-state open-load detection with <4 V threshold.

Technical Context

This device integrates two independent VIPower M0-9 high-side switches with dedicated logic inputs (IN0/IN1), fault reset (FaultRST), sense enable (SEn), and channel select (SEL) pins. Its internal architecture includes proportional current mirror sensing, thermal shutdown with 150–210 °C trip range, and undervoltage lockout (2.1–2.7 V) with 0.15 V hysteresis.

The CS pin provides time-multiplexed analog feedback: load current sensing (K = 10050 ±7% at IOUT = 4.75 A), overload indication (VSENSEH = 5–7.5 V), short-to-VCC detection, and OFF-state open-load diagnosis (VOL = 2–4 V). Fault latching is controlled by FaultRST polarity and SEL/SEn state per Table 10.

Key Specifications

Pinout & Package

Package: PowerSSO-16 (exposed thermal pad connected to VCC). Pin count: 16-pin surface-mount with integrated heat dissipation path to PCB.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar double-channel high-side driver applications.

Compared with TPS4H1600QPWPRQ1 and NCV8460A32R2G, VND9012AJTR uniquely combines dual-channel integration, ±7% analog current sense accuracy, and configurable latch-off-reducing PCB area by 40% and eliminating external fault decoding logic in ADAS power domains.

Availability

VND9012AJTR is available at Aetrix Electronics and suitable for automotive radar modules, ADAS camera sensors, HVAC blower systems, and electric power steering auxiliary supplies requiring stable component supply across extended temperature and voltage ranges.

Supply support for VND9012AJTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive-grade power, analog, and microcontroller solutions with AEC-Q100 qualification across product families.

VND9012AJTR belongs to ST's VIPower high-side driver portfolio, engineered specifically for intelligent 12 V load management in next-generation ADAS and body electronics with integrated diagnostics and extreme low-voltage resilience.

FAQ

What is the maximum allowable reverse battery voltage applied to VCC?

The device withstands -0.3 V on VCC per absolute maximum ratings (Table 3), but its reverse battery protection operates up to -13 V with 12 mΩ RDSON in reverse condition. External reverse-battery network on GND is mandatory per datasheet Section 1, as GND lacks internal protection.

How does the CS pin distinguish between normal load current and fault conditions?

CS outputs proportional current (IOUT/K) during normal operation. During overload, short-to-ground, or open-load, it transitions to fixed voltage levels: 5–7.5 V for open-load or short-to-VCC, and saturates near 0 V for thermal shutdown. Multiplexing via SEL/SEn enables per-channel fault identification without additional pins.

Can FaultRST be left unconnected, and what is its default behavior?

No - FaultRST must not be left floating. Per Table 2, it must be pulled to ground through a 15 kΩ resistor if unused. With FaultRST low, outputs enter auto-restart mode; with FaultRST high, latch-off occurs after fault. Default behavior is undefined without proper biasing.

What is the minimum VCC required to maintain accurate current sense functionality?

CS analog feedback remains accurate down to VCC = 7 V per Table 9 test conditions. Below 7 V, VSENSEH drops to 4.3 V and ISENSEH falls to 4.4 mA in open-load fault mode, but proportional sensing (K2/K3) is only specified for VCC ≥ 7 V and Tj ≤ 150°C.