Texas Instruments DRV8350FSRTVR

Overview

DRV8350FSRTVR from Texas Instruments is a 9–100-V, three-phase smart gate driver IC with integrated high- and low-side gate drivers, no integrated current shunt amplifiers, SPI interface, and WQFN-32 package. It delivers 50-mA to 1-A peak source and 100-mA to 2-A peak sink gate drive current, supports 6x/3x/1x PWM modes, and enables BLDC motor control in e-bikes and industrial servo drives.

For engineers reviewing the DRV8350FSRTVR datasheet, DRV8350FSRTVR pinout, DRV8350FSRTVR application, or DRV8350FSRTVR equivalent, this page provides verified functional safety support (IEC 61800-5-2), confirmed dead-time insertion, VGS handshake logic, dV/dt mitigation, and thermal shutdown behavior - all specific to the DRV8350FS variant in RTV package.

Technical Context

The DRV8350FSRTVR implements Smart Gate Drive (SGD) architecture with hardware-enforced minimum dead time and VGS handshake to prevent shoot-through, plus adjustable slew rate control for EMI reduction. Its charge pump supports 100% PWM duty cycle at up to 100-V VM, while the low-side linear regulator (VGLS) supplies 11 V for gate driving.

It uses SPI for configuration of protection thresholds, dead time (50–400 ns), and gate drive strength, and includes integrated VM UVLO, GDUV, VDS overcurrent, thermal warning/shutdown, and fault reporting via open-drain nFAULT. The device operates from –40°C to +125°C ambient with RθJA = 29.2°C/W.

Key Specifications

Pinout & Package

DRV8350FSRTVR uses a 32-pin WQFN package (RTV) with 5.0 mm × 5.0 mm body and exposed thermal pad. Pin functions are defined per TI SLVSFV1B Rev B (August 2021).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar three-phase gate driver applications.

Compared with DRV8350FHRTVR, the DRV8350FSRTVR adds SPI-based diagnostics and configuration flexibility at identical gate drive performance; compared with DRV8353FSRTAR, it removes integrated amplifiers to reduce size, cost, and layout complexity where external current sensing is already implemented.

Availability

DRV8350FSRTVR is available at Aetrix Electronics and suitable for e-mobility power stages, industrial servo drives, and autonomous delivery systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for DRV8350FSRTVR 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in motor control ICs.

The DRV835xF family was designed specifically for high-voltage, three-phase BLDC motor control in space-constrained, thermally demanding applications - emphasizing integration, protection, and functional safety readiness.

FAQ

What is the maximum VM supply voltage supported by the DRV8350FSRTVR?

The DRV8350FSRTVR supports a maximum VM supply voltage of 75 V under recommended operating conditions. Absolute maximum rating is 80 V, but sustained operation above 75 V risks exceeding thermal limits or violating gate drive regulator specifications. For 100-V drain operation, VDRAIN must be used as the charge pump reference while VM remains ≤75 V.

Does the DRV8350FSRTVR include integrated current sense amplifiers?

No, the DRV8350FSRTVR does not include integrated current shunt amplifiers. It belongs to the "F" variant without amplifiers (per TI device comparison table). Current sensing must be implemented externally using discrete amplifiers or MCU ADCs. For integrated amplifiers, consider DRV8353FSRTAR instead.

How is dead time controlled on the DRV8350FSRTVR?

On the DRV8350FSRTVR, dead time is fixed at 100 ns in hardware mode (DRV8350FH) but configurable via SPI register (DEAD_TIME bits) in the FS variant - offering 50 ns, 100 ns, 200 ns, or 400 ns options. This hardware-enforced minimum prevents shoot-through regardless of input timing skew or software errors.

What package type and thermal characteristics apply to the DRV8350FSRTVR?

The DRV8350FSRTVR uses a 32-pin WQFN package (RTV) with 5.0 mm × 5.0 mm body and exposed thermal pad. Its junction-to-ambient thermal resistance (RθJA) is 29.2°C/W, and junction-to-board (RθJB) is 9.2°C/W - enabling >10 W continuous power dissipation with proper PCB copper area and thermal vias.

Can the DRV8350FSRTVR operate with 100% PWM duty cycle?

Yes, the DRV8350FSRTVR supports 100% PWM duty cycle via its integrated high-side charge pump (VCP), which generates gate drive voltage referenced to VDRAIN. This eliminates bootstrap capacitor limitations and enables full-duty-cycle operation even at low VM voltages down to 9 V.