STMicroelectronics VN9E30FTR

Overview

VN9E30FTR from STMicroelectronics is a 6-channel automotive high-side driver IC built on VIPower M0-7 technology, designed for direct ground-referenced resistive/inductive load control in body electronics and chassis systems. It delivers 30 mΩ typical R_ON, 35 A peak current per channel, 28 V supply capability, and operates down to ≤3.0 V for deep cold-cranking compliance (LV124 Rev. 2013). Used in intelligent power distribution modules for lighting, solenoids, and actuators.

For engineers reviewing the VN9E30FTR datasheet, VN9E30FTR pinout, VN9E30FTR application, or VN9E30FTR equivalent, this page provides verified technical context, SPI-configurable diagnostics, limp-home fail-safe behavior, digital current sensing via integrated 10-bit ADC, and AEC-Q100 Grade 0 qualification - all critical for automotive ECU power management design.

Technical Context

The VN9E30FTR implements six independent VIPower high-side switches with two-level current limiting, thermal shutdown with configurable latch-off or time-limited auto-restart, and integrated 24-bit ST-SPI interface supporting full register read/write, real-time fault reporting, and programmable bulb/LED mode. Each channel features dedicated blanking time control and synchronous diagnostics for open-load (OFF-state), short-to-VCC, short-to-GND, and overtemperature events.

It supports dual control paths: SPI-driven normal mode with watchdog supervision (t_WDTB = 120 ms), and hardware-based limp-home operation via two OTP-programmable direct inputs (DI0/DI1) during VDD loss, reset, or watchdog timeout. The internal 10-bit ADC provides 0.1% FSR digital current sense with trimming bits for reference current calibration.

Key Specifications

Pinout & Package

Package: QFN 6×6 mm, 32-pin, exposed thermal pad (TAB electrically connected to VCC drain nodes; must be soldered but isolated at PCB level).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTS7040-2EPP and MC33883A, the VN9E30FTR uniquely combines 6-channel integration, 30 mΩ conduction loss, embedded 10-bit ADC, and OTP-programmable limp-home inputs - making it optimal for next-generation BCMs requiring autonomous fail-safe behavior and digital current traceability.

Availability

VN9E30FTR is available at Aetrix Electronics and suitable for automotive lighting control, engine bay solenoid management, and smart power distribution units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for VN9E30FTR 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, industrial, and power management ICs with over 40 years of automotive qualification expertise.

The VN9E30FTR belongs to ST's VIPower M0-7 high-side driver family, engineered specifically for AEC-Q100-compliant body electronics systems requiring high integration, diagnostic richness, and fail-operational resilience.

FAQ

What is the maximum continuous current per channel at 150°C junction temperature?

The VN9E30FTR supports 14 A continuous current per channel at T_j = 150°C, derated from its 35 A peak limit using the device's thermal model and package thermal resistance (R_θJC = 1.8°C/W). This rating assumes 2-layer PCB with 200 mm² copper pour under the TAB and forced airflow ≥1 m/s.

How does the limp-home mode handle loss of VDD while maintaining VCC?

When VDD drops below VDD_POR_OFF (typically 2.7 V) while VCC remains valid, the VN9E30FTR automatically enters Reset mode - a substate of limp-home - where outputs are controlled solely by DI0/DI1 per OTP assignment, SPI is disabled, registers retain reset values, and protections (overcurrent, overtemperature, open-load) remain fully active with unlimited auto-restart.

Can the 10-bit ADC measure current during PWM switching?

Yes - the integrated ADC supports asynchronous sampling synchronized to PWM edges, allowing accurate current measurement during active switching. It uses internal blanking windows to reject switching noise, and conversion results are accessible via SPI register 0x2C (CHx_CURRENT) with 0.1% FSR linearity across the full 0–35 A range.

Is the VN9E30FTR compatible with 3.3 V microcontrollers without level shifting?

Yes - the SPI interface (CSN, SCK, SDI, SDO) and direct inputs (DI0, DI1) are 3.3 V tolerant and CMOS-compatible. VDD may be supplied directly from a 3.3 V MCU rail; the internal regulator accepts 3.3 V ±10% and maintains stable logic operation even during VDD ripple up to 200 mV_pp.