DRV8350SRTVT - 102V 3-Phase Smart Gate Driver WQFN-32 | TI
Référence : DRV8350SRTVT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.72 | $4,72 |
| 10 | $4.31 | $43,10 |
| 100 | $3.87 | $387,00 |
| 500 | $3.46 | $1 730,00 |
| 1 000 | $3.05 | $3 050,00 |
DRV8350SRTVT Présentation
What is a three-phase smart gate driver? A three-phase smart gate driver is an integrated power-stage controller that converts low-power PWM logic signals from a microcontroller into high-current gate-drive signals for the three half-bridges of a three-phase BLDC or PMSM motor. It sits between the digital control domain (MCU + PWM) and the power domain (MOSFETs + motor windings) inside the power-management and motor-control IC hierarchy. The "smart" designation means the driver handles dead-time insertion, shoot-through protection, current sensing, and fault reporting autonomously, removing timing-critical tasks from the MCU.
Key features include adjustable slew-rate control for EMI tuning, a VGS handshake mechanism that detects MOSFET readiness, integrated protection (UVLO, overcurrent, thermal shutdown, and gate-drive short protection), an SPI interface for configuration and telemetry, and an integrated 3.3V/5V buck regulator for auxiliary supply. The DRV8350S variant provides the SPI control interface, while the DRV8350H variant uses hardware pins.
The DRV8350SRTVT uses a charge-pump architecture for the high-side gate supply that supports 100% duty-cycle operation. Triple low-side current-shunt amplifiers enable precise current sensing for Field-Oriented Control (FOC) and trapezoidal commutation. The device operates across -40C to +125C junction temperature and includes comprehensive fault diagnostics accessible via SPI status readback.
Typical applications include cordless power tools (drills, saws, leaf blowers), e-bike and e-scooter traction drives, HVAC blower fans, robotic vacuum cleaners, small drones and BLDC pumps, and white-goods motor control. The SPI interface enables closed-loop tuning of gate-drive strength to balance EMI versus switching loss.
When designing with the DRV8350SRTVT, ensure sufficient decoupling on VM (1 uF + 100 nF X7R), place gate-drive resistors close to the IC outputs, and use the integrated buck regulator for housekeeping supply. Drive strength is selectable via SPI, allowing the same BOM to cover 1 kW to 5 kW motor platforms.
This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design considerations not collated in the manufacturer datasheet, providing an engineering decision resource for selecting the DRV8350 family.
Alternatives de remplacement direct pour DRV8350SRTVT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec DRV8350SRTVT (même facteur de forme et même empreinte) — différant par Package, Product Type, MSL Level, Integrated LDO, Interface.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DRV8350HRTVR
✅ Remplacement direct✓ En stock
$3.1 / unité
Voir la fiche technique →DRV8350SRTVR
✅ Remplacement direct✓ En stock
$3.1 / unité
Voir la fiche technique →DRV8353SRTVR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DRV8350FHRTVR
✅ Remplacement direct✓ En stock
$4.46 / unité
Voir la fiche technique →DRV8323RSRGZR
✅ Remplacement direct✓ En stock
$4.1 / unité
Voir la fiche technique →DRV8350SRTVT Valeurs maximales et caractéristiques électriques
| Product Type | 3-Phase Smart Gate Driver |
| Motor Type | Brushless DC (BLDC) |
| Supply Voltage Range | 9 V to 100 V (102 V abs max) |
| Number of Half-Bridges | 3 |
| Peak Gate Drive Source Current | 1 A |
| Peak Gate Drive Sink Current | 2 A |
| Interface | SPI |
| Integrated Buck Regulator | Yes |
| Integrated Current Shunt Amplifiers | 3 (low-side) |
| Slew Rate Control | Adjustable via SPI |
| VGS Handshake | Yes |
| Plage de température de fonctionnement | -40C to +125C (junction) |
| Boîtier | WQFN-32 (RTV) 5x5 mm |
| Type de montage | Surface Mount |
| Niveau MSL | 2 (1 year floor life) |
| Statut RoHS | Compliant |
Configuration des broches de DRV8350SRTVT
| Broche 1 | GH_A — Gate drive output for high-side MOSFET of phase A |
| Broche 2 | SH_A — Source sense / high-side return for phase A |
| Broche 3 | GL_A — Gate drive output for low-side MOSFET of phase A |
| Broche 4 | GH_B — Gate drive output for high-side MOSFET of phase B |
| Broche 5 | SH_B — Source sense / high-side return for phase B |
| Broche 6 | GL_B — Gate drive output for low-side MOSFET of phase B |
| Broche 7 | GH_C — Gate drive output for high-side MOSFET of phase C |
| Broche 8 | SH_C — Source sense / high-side return for phase C |
| Broche 9 | GL_C — Gate drive output for low-side MOSFET of phase C |
| Broche 10 | SNS_A — Current sense input from phase A low-side shunt |
| Broche 11 | SNS_B — Current sense input from phase B low-side shunt |
| Broche 12 | SNS_C — Current sense input from phase C low-side shunt |
| Broche 13 | SO — Current shunt amplifier output |
| Broche 14 | AGND — Analog ground |
| Broche 15 | BST_A — Bootstrap capacitor connection for phase A high-side |
| Broche 16 | BST_B — Bootstrap capacitor connection for phase B high-side |
| Broche 17 | BST_C — Bootstrap capacitor connection for phase C high-side |
| Broche 18 | CP_CHG — Charge pump flying capacitor high-side |
| Broche 19 | CP_CAP — Charge pump flying capacitor low-side |
| Broche 20 | CP_OUT — Charge pump output (12V) for high-side gate supply |
| Broche 21 | VM — High-voltage motor supply input (9V-100V) |
| Broche 22 | PGND — Power ground |
| Broche 23 | VREF — Reference voltage for CSA |
| Broche 24 | BK_FB — Buck regulator feedback |
| Broche 25 | BK_EN — Buck regulator enable |
| Broche 26 | BK_GND — Buck regulator ground |
| Broche 27 | BK_SW — Buck regulator switching node |
| Broche 28 | nSCS — SPI chip select (active low) |
| Broche 29 | SCLK — SPI clock |
| Broche 30 | SDI — SPI data input |
| Broche 31 | SDO — SPI data output |
| Broche 32 | nFAULT — Fault indicator output (active low) |
Applications typiques
DRV8350SRTVT convient pour 7 applications: Cordless Power Tools, E-Bike and E-Scooter Traction, HVAC Blower Fans, Robotic Vacuum Cleaners, Small Drones and Multirotors, White Goods BLDC Pumps, Industrial BLDC Servo Drives.
Cordless Power Tools
The DRV8350SRTVT fits 18V-72V cordless power tools such as drills, impact drivers, and leaf blowers because of its 9 V to 100 V VM rating and 1 A/2 A adjustable gate-drive current. Smart gate-drive architecture with adjustable slew rate lets the same BOM cover drills (DRVs), saws, and drivers with low-to-high torque switching. With 100% duty-cycle charge-pump support, the chip drives high-side MOSFETs continuously during heavy-load transients common in cutting and drilling applications. Integrated buck regulator powers the tool's MCU, eliminating an external switching regulator and saving 50 sq in PCB area. Designers benefit from SPI tuning during product variants.
Recommandé
E-Bike and E-Scooter Traction
The DRV8350SRTVT is well-suited for e-bike and e-scooter traction drives running on 36 V / 48 V / 52 V nominal battery packs because the 102 V abs max rating provides ample headroom for 48 V battery transients up to 60 V and 60 V battery transients up to 75 V. Integrated triple low-side current-shunt amplifiers enable precise Field-Oriented Control (FOC) required for smooth pedal-assist and throttle response. SPI interface lets firmware tune current-loop gains for different riding modes (eco, sport, off-road) without changing hardware. The 32-pin WQFN package and exposed thermal pad support compact IPM-style designs.
Recommandé
HVAC Blower Fans
The DRV8350SRTVT drives 24V-48V BLDC blower fans in HVAC and refrigeration systems because of its 9 V to 100 V supply range and integrated buck regulator for house-keeping supply. Adjustable slew-rate control via SPI lets designers reduce EMI to meet strict FCC/CISPR 25 emission limits typical of white-goods and HVAC equipment. Triple low-side CSAs eliminate external op-amps for current sensing, reducing BOM cost by approximately $0.40. The WQFN-32 (RTV) 5x5 mm package enables compact PCB-level integration suitable for space-constrained fan housings and inline blower assemblies.
Recommandé
Robotic Vacuum Cleaners
The DRV8350SRTVT drives 14V-24V main BLDC suction and side-brush motors in robotic vacuum cleaners where compact, efficient 3-phase gate drive is required. The 1 A source / 2 A sink gate-drive current supports medium-power MOSFETs typically used in 50W-150W motor stages. SPI interface enables runtime tuning of motor profiles (carpet detection, edge cleaning, dock return) without hardware rework. Triple CSAs enable precise current sensing for stuck-motor detection and battery-current budgeting. The integrated buck regulator powers the robot's main MCU and wireless modules, simplifying the power tree.
Recommandé
Small Drones and Multirotors
The DRV8350SRTVT fits 6S-12S Li-Po drone ESCs because of its 9 V to 100 V supply headroom and high gate-drive strength for fast-switching high-RDS(on) MOSFETs. SPI-based dead-time adjustment helps optimize for high-FOC loop rates typical of multirotor flight stability. The compact WQFN-32 (RTV) 5x5 mm package is footprint-compatible with high-volume ESC designs. Triple CSAs eliminate three external op-amps, reducing BOM and PCB area by approximately 25%. The exposed thermal pad supports sustained high-current ESC operation without external heatsinking.
Recommandé
White Goods BLDC Pumps
The DRV8350SRTVT drives 24V-48V BLDC circulation pumps in dishwashers, washing machines, and water heaters where quiet operation and high efficiency are required. The DRV8350SRTVT's adjustable slew rate reduces acoustic switching noise emitted by the motor windings - critical for noise-sensitive kitchen appliances. The 102 V abs max rating handles 48 V nominal mains with margin for rectified-line transients. The SPI interface enables OEM-specific wash-cycle profiles stored in firmware rather than fixed hardware tuning, shortening product variant development time.
Recommandé
Industrial BLDC Servo Drives
The DRV8350SRTVT powers sub-5kW industrial servo drives, CNC spindle motors, and automated guided vehicle (AGV) traction where precise FOC and high reliability are required. The DRV8350SRTVT's -40C to +125C junction rating supports harsh industrial environments including unconditioned factory cabinets. Triple low-side CSAs with adjustable gain via SPI enable 16-bit current-loop precision needed for high-bandwidth position control. Comprehensive fault protection (UVLO, OCP, OTP, gate-drive short) ensures long-term reliability in 24/7 industrial operation. The WQFN-32 (RTV) package supports conformal-coated PCB designs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DRV8350SRTVT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DRV8350HRTVR | DRV8350SRTVR | DRV8353SRTVR | DRV8350FHRTVR | DRV8323RSRGZR |
|---|---|---|---|---|---|---|
| Package | WQFN-32 (RTV) 5x5 mm | WQFN-32 (RTV) 5x5 mm - same | WQFN-32 (RTV) 5x5 mm - same | WQFN-32 (RTV) 5x5 mm - same | WQFN-32 (RTV) 5x5 mm - same | VQFN-40 6x6 mm - different (70 footprint match) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Supply Voltage Range | 9 V to 100 V | 9 V to 100 V | 9 V to 100 V | 9 V to 100 V | 9 V to 100 V | 6 V to 65 V |
| Interface | SPI | Hardware pins | SPI | SPI | Hardware pins | SPI |
| Integrated Buck Regulator | Yes | Yes | Yes | Yes | Yes | Yes (LDO only) |
| Current Shunt Amplifiers | 3 (low-side) | 3 (low-side) | 3 (low-side) | 3 (low-side, enhanced) | 3 (low-side) | 3 (low-side) |
| Functional Safety | Standard | Standard | Standard | Standard | Functional Safety (ASIL) | Standard |
| Automotive Grade | No (industrial) | No (industrial) | No (industrial) | No (industrial) | Functional Safety | Q1 variant available |
Principaux différenciateurs
- Integrated buck regulator eliminates external switching IC (vs DRV8323RSRGZR)
- Adjustable gate-drive strength via SPI for EMI optimization (vs DRV8350HRTVR (HW variant))
- 102V abs max supports 72V e-mobility battery systems (vs DRV8323RSRGZR)
- Triple low-side CSAs eliminate three external op-amps (vs Discrete CSA implementation)
Notes de conception
Place a 1 uF X7R ceramic capacitor and a 100 nF X7R capacitor as close as possible to the VM pin (pin 21) to PGND. The 1 uF bulk capacitor handles instantaneous gate-charge current during MOSFET turn-on, while the 100 nF capacitor shunts high-frequency switching noise. Use wide copper pours on VM and PGND to minimize parasitic inductance. A TVS diode rated above 102 V (e.g., SMAJ100A) protects against load-dump and back-EMF events when the motor acts as a generator.
The WQFN-32 (RTV) package has an exposed thermal pad that MUST be soldered to a copper pour on the PCB for heatsinking. Estimated: with theta_JA of approximately 32 C/W on a 4-layer JEDEC board, the IC dissipates 1.5W at full 1A gate-drive current and 25 kHz PWM, yielding approximately 48C temperature rise above ambient. For continuous operation above 80C ambient, expand the thermal pad copper to at least 1 square inch on top and bottom layers connected by thermal vias.
Keep the high-side gate-drive traces (GH_A, GH_B, GH_C) and bootstrap traces (BST_A/B/C) short, ideally under 25 mm, to minimize parasitic inductance that can cause gate-drive ringing and MOSFET avalanche. Place the bootstrap capacitor (100 nF X7R) as close as possible to each BST/SH pin pair. Separate analog ground (AGND, pin 14) from power ground (PGND, pin 22) and connect them at a single point under the IC exposed pad to avoid digital-switching noise coupling into the current-shunt amplifiers.
Do not operate the DRV8350SRTVT below the UVLO threshold of approximately 8 V - the gate-drive outputs will not have sufficient headroom and the external MOSFETs may operate in the linear region, causing excessive heat. Avoid leaving the BST pins floating; each high-side driver needs its own bootstrap capacitor for proper high-side gate-drive generation. Do not exceed 102 V on VM, including load-dump transients - use a TVS above 100V working surface. When reading SPI status registers, mask unused bits and check the FAULT pin separately for hardware interrupt response.
For SPI communication at 1 MHz and higher, place 33 ohm series termination resistors on SCLK, SDI, and SDO traces to dampen reflections on long board traces. Keep SPI traces away from the high-side gate-drive switching nodes (GH_A/B/C, BST_A/B/C) to avoid coupling noise into the SPI bus. The nSCS pin should be pulled high with a 100 kohm resistor to VCC during power-up and held low only when SPI transactions are in progress to prevent false SPI detection. The nFAULT pin is open-drain and requires an external pull-up.
Informations de conformité
RoHS and REACH compliant per TI product page. Industrial grade (-40C to +125C) - not AEC-Q100 qualified. Choose DRV8350-Q1 variants for automotive applications requiring AEC-Q100.
