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Texas Instruments DRV8106SQRHBRQ1
- Part No.:
- DRV8106SQRHBRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
DRV8106SQRHBRQ1.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,221
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Product details
Overview
DRV8106SQRHBRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive half-bridge smart gate driver with integrated wide common-mode inline current sense amplifier, operating from 4.9 V to 37 V, supporting 100% PWM via doubler charge pump, and delivering adjustable 0.5–62 mA peak gate drive current for N-channel MOSFETs in brushed DC motor control.
For engineers reviewing the DRV8106SQRHBRQ1 datasheet, DRV8106SQRHBRQ1 pinout, DRV8106SQRHBRQ1 application, or DRV8106SQRHBRQ1 equivalent, this page delivers verified technical context, SPI-configurable gate drive and current sensing parameters, automotive-grade protection features, and real-world implementation guidance for BDC motor systems requiring precise inline current monitoring and robust fault handling.
Technical Context
The DRV8106SQRHBRQ1 implements a smart gate drive architecture with integrated dead-time handshaking and digitally adjustable slew rate control, enabling shoot-through prevention and EMI reduction through programmable gate current (16 settings, independent high-/low-side). Its wide common-mode shunt amplifier supports inline, high-side, or low-side sensing with four selectable gains (10/20/40/80 V/V) and configurable PWM blanking.
It uses SPI interface for full configuration of VDS/VGS fault thresholds, deglitch times, amplifier blanking, and digital dead-time insertion (up to 8.8 µs), while integrating protection monitors for PVDD undervoltage/overvoltage, VCP regulation, MOSFET VDS overcurrent, VGS gate faults, thermal warning/shutdown, and offline open-load/short-circuit diagnostics - all signaled via open-drain nFAULT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage Range | 4.9 V to 37 V (abs max 40 V); enables direct connection to 12 V/24 V automotive battery rails without external regulators. |
| Gate Drive Current | 0.5–62 mA peak source/sink (16-step SPI control); allows optimization of MOSFET switching speed vs. EMI and power loss. |
| Current Sense Gain | 10/20/40/80 V/V (SPI-selectable); supports accurate inline motor current measurement across ±50 mV to ±500 mV shunt voltage ranges. |
| Common-Mode Range | –2 V to VPVDD + 2 V; permits direct inline sensing even during recirculation when bridge node swings below ground. |
| Digital Dead-Time | 0–8.8 µs (8-step SPI setting); adds precise timing margin beyond hardware handshake to prevent shoot-through under varying load conditions. |
| Input Offset Voltage | ±1.5 mV (max at 25°C); ensures <1% error in 100-mV shunt-based current measurement at gain = 10 V/V. |
| Thermal Shutdown | Junction temperature >150°C triggers shutdown; combined with RθJA = 34.9°C/W, supports continuous operation up to 125°C ambient with proper PCB copper area. |
Pinout & Package
DRV8106SQRHBRQ1 is housed in a 32-pin VQFN package (5.0 mm × 5.0 mm) with wettable flanks for automated optical inspection. The exposed thermal pad must be soldered to PCB ground plane for thermal performance and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | System ground reference | Primary digital ground return; must be low-impedance connection to PCB ground plane. |
| DVDD (Pin 2) | Digital supply input | Powers logic core and SPI interface; requires 1.0-µF ceramic decoupling to GND. |
| nSCS (Pin 3) | SPI chip select | Active-low enable for serial communication; internal pullup eliminates need for external resistor. |
| SCLK (Pin 4) | SPI clock input | Drives data capture on falling edge; internal pulldown ensures safe default state. |
| SDI (Pin 5) | SPI data input | Serial command/data entry point; captures on SCLK falling edge. |
| SDO (Pin 6) | SPI data output | Push-pull output for register reads and status reporting; no external pullup needed. |
| IN1/EN (Pin 7) | H-bridge control input | Direct PWM or enable signal for half-bridge operation; internal pulldown prevents floating state. |
| nHIZ1 (Pin 8) | High-impedance control | Forces gate outputs into high-Z state; used for freewheeling or diagnostic isolation. |
| nSLEEP (Pin 11) | Global sleep enable | Logic low disables all drivers and reduces quiescent current to ≤3 µA; critical for battery conservation. |
| DRVOFF (Pin 12) | Driver shutdown override | Hardware-level kill switch: logic high pulls both GH1 and GL1 low regardless of other inputs. |
| nFAULT (Pin 13) | Fault indicator output | Open-drain active-low signal asserting any fault condition; requires external pullup to DVDD or system rail. |
| SO (Pin 14) | Current sense amplifier output | Analog voltage proportional to shunt current; connects directly to MCU ADC or external signal chain. |
| AREF (Pin 16) | Amplifier reference supply | Provides stable bias for current sense circuitry; requires 0.1-µF ceramic capacitor to AGND. |
| SP/SN (Pins 18/19) | Shunt amplifier inputs | Differential inputs for inline current sensing; SP connects to shunt high-side, SN to low-side. |
| GH1 (Pin 20) | High-side gate driver output | Drives gate of external high-side N-MOSFET; voltage referenced to SH1 (source sense). |
| SH1 (Pin 21) | High-side source sense | Connects to MOSFET source to enable accurate VGS monitoring and level-shifting. |
| GL1 (Pin 22) | Low-side gate driver output | Drives gate of external low-side N-MOSFET; voltage referenced to SL1 (power return path). |
| SL1 (Pin 23) | Low-side sense/power return | Low-impedance ground return for low-side MOSFET; must tie directly to system ground near shunt. |
| DRAIN (Pin 28) | Bridge drain voltage sense | Monitors high-side MOSFET drain node for VDS overcurrent detection and recirculation timing. |
| PVDD (Pin 29) | Power stage supply input | Connects to motor bus voltage; requires local 0.1-µF + ≥10-µF bulk capacitance to GND. |
| VCP (Pin 30) | Charge pump output | Regulated ~10.5 V output for high-side gate drive; requires 1-µF ceramic cap to PVDD. |
| CPH/CPL (Pins 31/32) | Charge pump switching nodes | Internal flying capacitor nodes; require 100-nF ceramic caps between CPH and CPL. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable gate drive current (0.5–62 mA) | Enables fine-tuned trade-off between MOSFET switching speed, gate drive losses, and radiated EMI in space-constrained automotive modules. |
| Integrated dead-time handshaking + digital insertion | Prevents shoot-through by coordinating high-/low-side turn-on timing, with additional programmable delay for worst-case layout or temperature drift. |
| Wide common-mode shunt amplifier (–2 V to VPVDD+2 V) | Allows accurate inline current sensing during PWM recirculation phases where bridge node drops below ground - essential for torque estimation in BDC motors. |
| SPI-configurable VDS/VGS fault thresholds and response modes | Supports adaptive protection: e.g., cycle-by-cycle VDS fault for short-circuit limiting vs. latched shutdown for catastrophic failure detection. |
| Offline open-load and short-circuit diagnostics | Verifies MOSFET integrity and shunt connection before motor activation - critical for functional safety compliance in ASIL-B systems. |
| Spread spectrum clocking for EMI reduction | Modulates internal oscillator frequency to lower peak emissions, easing compliance with CISPR 25 Class 5 automotive EMC requirements. |
Applications
| Automotive Brushed DC Motor Control | Solenoid & Relay Actuation |
|---|---|
Use Scenario: Driving 12 V/24 V brushed DC motors in HVAC blower, seat adjusters, or power window modules with closed-loop current feedback. IC Role / Device Role / Timing Role: Half-bridge gate driver with inline current sense amplifier providing real-time motor phase current for torque regulation and stall detection. Use Value: Enables precise current-controlled ramp-up/down, preventing inrush damage and enabling soft-start functionality without external current-sense ICs. | Use Scenario: Controlling high-current solenoids in transmission shift actuators or fuel injectors requiring fast, reliable coil energization and de-energization. IC Role / Device Role / Timing Role: Smart gate driver delivering controlled gate slew rate and VGS monitoring to prevent solenoid coil overvoltage and ensure clean turn-off. Use Value: Eliminates need for external flyback diodes and snubbers by integrating active clamp and energy recirculation paths. |
| BDC Fuel/Water/Oil Pump Control | Windshield Wiper System |
Use Scenario: Regulating brushless-compatible or brushed fuel pumps in engine management systems with variable-speed demand and diagnostic coverage. IC Role / Device Role / Timing Role: High-voltage half-bridge driver with PVDD monitoring, VDS overcurrent detection, and thermal shutdown protecting against dry-run or blocked-flow conditions. Use Value: Supports ASIL-B functional safety goals via integrated offline diagnostics and fault signaling on nFAULT pin. | Use Scenario: Driving windshield wiper motors with intermittent, park, and high/low-speed modes under harsh environmental conditions. IC Role / Device Role / Timing Role: Automotive-qualified gate driver with AEC-Q100 Grade 1 rating (–40°C to +125°C), spread-spectrum clocking, and robust ESD protection (±2 kV HBM). Use Value: Ensures uninterrupted operation in cold cranking (low-VBAT) and hot under-hood environments while meeting OEM EMC requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8706Q1RHBQ1 | H-bridge variant with identical inline current sense amplifier and SPI interface, but includes second half-bridge channel and shared VCP regulator. | Designed for dual-motor or bidirectional BDC control; not pin-compatible due to different pin mapping and dual-channel logic. | Select when driving two independent brushed DC loads or requiring H-bridge topology for reversible motion. |
| DRV8106HQRHBRQ1 | Hardware-interface variant with same gate drive specs and amplifier, but replaces SPI pins (SCLK/SDI/SDO/nSCS) with analog multi-level inputs (GAIN/IDRIVE/VDS) and fixed-function control. | Lacks programmable diagnostics and digital dead-time; suited for cost-sensitive, fixed-function designs with minimal MCU GPIO. | Select when SPI configuration is unnecessary and system uses simple H/W control signals instead of firmware-based tuning. |
Compared with DRV8706Q1RHBQ1 and DRV8106HQRHBRQ1, the DRV8106SQRHBRQ1 uniquely balances full SPI configurability, single half-bridge efficiency, and automotive-grade inline current sensing - making it optimal for space-constrained, software-defined BDC motor modules requiring adaptive protection and precision current feedback.
Availability
DRV8106SQRHBRQ1 is available at Aetrix Electronics and suitable for automotive brushed DC motor control, solenoid actuation, fuel/water pump regulation, and windshield wiper systems requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for DRV8106SQRHBRQ1 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 company specializing in analog, embedded processing, and automotive ICs, with leadership in high-reliability power management solutions.
The DRV8106-Q1 product line is designed specifically for automotive brushed DC motor control systems requiring integrated gate driving, inline current sensing, and comprehensive fault protection - targeting ASIL-B compliant applications in body electronics and powertrain peripherals.
FAQ
What is the maximum operating voltage for DRV8106SQRHBRQ1?
The DRV8106SQRHBRQ1 supports a driver power supply (PVDD) range of 4.9 V to 37 V, with absolute maximum rating of 40 V. This allows direct integration into 12 V and 24 V automotive battery systems, including cold-cranking scenarios down to 4.9 V and transients up to 40 V without external clamping.
Does DRV8106SQRHBRQ1 support inline current sensing during PWM recirculation?
Yes, the DRV8106SQRHBRQ1 wide common-mode shunt amplifier operates from –2 V to VPVDD + 2 V, enabling accurate inline current measurement even when the bridge node swings below ground during low-side or synchronous rectification recirculation windows - a key requirement for torque estimation in BDC motor control.
How does the DRV8106SQRHBRQ1 implement shoot-through prevention?
The DRV8106SQRHBRQ1 uses integrated hardware dead-time handshaking between GH1 and GL1 outputs, plus programmable digital dead-time insertion (0–8.8 µs via SPI) to enforce minimum off-time between high- and low-side MOSFET conduction, preventing simultaneous conduction and destructive shoot-through current under all operating conditions.
What fault conditions does DRV8106SQRHBRQ1 monitor and report?
The DRV8106SQRHBRQ1 monitors PVDD undervoltage/overvoltage, VCP regulation, MOSFET VDS overcurrent, VGS gate faults, thermal warning/shutdown, offline open-load/short-circuit, and charge pump faults - all reported collectively on the open-drain nFAULT pin, with individual flags accessible via SPI register reads.
Is DRV8106SQRHBRQ1 pin-compatible with other devices in the DRV8106-Q1 family?
No - DRV8106SQRHBRQ1 (SPI interface) and DRV8106HQRHBRQ1 (hardware interface) share the same VQFN-32 package and core functionality but differ in pin assignment for control signals (e.g., SCLK/SDI/SDO vs. GAIN/IDRIVE), making them not pin-compatible; board redesign is required for substitution.
DRV8106SQRHBRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Driven Configuration:
- Half-Bridge
- Channel Type:
- -
- Number of Drivers:
- -
- Gate Type:
- -
- Voltage - Supply:
- 3V ~ 5.5V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- -
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 32-VQFN (5x5)
DRV8106SQRHBRQ1 FAQ
1.How can I place an order for DRV8106SQRHBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8106SQRHBRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8106SQRHBRQ1 reliable?
The price and inventory of DRV8106SQRHBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8106SQRHBRQ1 is usually 5 days.
3.What payment methods are accepted for DRV8106SQRHBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8106SQRHBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8106SQRHBRQ1?
DRV8106SQRHBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8106SQRHBRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8106SQRHBRQ1?
For technical support, including DRV8106SQRHBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8106SQRHBRQ1 requirements.
6.How does Aetrix verify that DRV8106SQRHBRQ1 is sourced from the original manufacturer or authorized distributors?
All DRV8106SQRHBRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8106SQRHBRQ1 meets industry standards.
7.What is the process for return or replacement of DRV8106SQRHBRQ1?
All DRV8106SQRHBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DRV8106SQRHBRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8106SQRHBRQ1 part is unused and in its original packaging.
Return procedure for DRV8106SQRHBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DRV8106SQRHBRQ1 Tags
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ZXGD3009E6TA
Diodes Incorporated
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1EDN7512BXTSA1
Infineon Technologies
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Texas Instruments
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Microchip Technology
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Microchip Technology
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Microchip Technology
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Microchip Technology
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Littelfuse Inc.
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Infineon Technologies
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Infineon Technologies
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IX4310TTR
Littelfuse Inc.
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2EDN7524RXTMA1
Infineon Technologies
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