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Texas Instruments DRV8912QPWPRQ1
- Part No.:
- DRV8912QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8912QPWPRQ1.pdf
- Description:
- AUTO MULTI-CHANNEL HALF BRIDGER
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DRV8912QPWPRQ1 from Texas Instruments is a 12-channel automotive-grade half-bridge driver IC designed for brushed DC motor and solenoid control in safety-critical vehicle subsystems. It operates from 4.5 V to 32 V, delivers 1-A RMS per channel, supports 5-MHz SPI configuration and diagnostics, and integrates thermal shutdown, overcurrent protection, and enhanced open-load detection. It is used in HVAC flap actuation and side mirror adjustment systems.
For engineers reviewing the DRV8912QPWPRQ1 datasheet, DRV8912QPWPRQ1 pinout, DRV8912QPWPRQ1 application, or DRV8912QPWPRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed diagnostic capabilities, and real-world automotive use cases - all aligned with TI's SLVSEC9C production data sheet (Rev. FEBRUARY 2020).
Technical Context
The DRV8912QPWPRQ1 implements twelve independent half-bridge output stages with programmable PWM generators, enabling forward/reverse/brake/coast motor control modes. Its SPI interface operates at up to 5 MHz with daisy-chain capability and provides per-channel fault reporting including OCP, OTW/OTSD, VM UVLO/OVP, and multi-mode open-load detection (active, low-current, negative-current).
Each half-bridge features matched high-side and low-side MOSFETs with typical RDS(ON) of 1.1 Ω at 25°C (1.5 Ω at 125°C), configurable slew rate (0.6–2.5 V/µs), and programmable dead time (2–32 µs). The device enters ultra-low-power sleep mode (1.5 µA) via nSLEEP and signals faults on the open-drain nFAULT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 32 V VM; supports 12-V and 24-V automotive battery rails with 40-V absolute max. |
| Output Channels | 12 independent half-bridges; enables simultaneous control of multiple BDC motors or solenoids. |
| Per-Channel Current | 1-A RMS continuous; supports peak loads up to 6 A when outputs are paralleled. |
| SPI Interface | 16-bit, 5-MHz serial interface with daisy-chain support for multi-device configuration and real-time diagnostics. |
| Thermal Protection | Integrated thermal warning (OTW) and shutdown (OTSD) with junction temperature monitoring up to 150°C. |
| Open-Load Detection | Three active schemes: standard, low-current, and negative-current OLD - critical for detecting disconnected actuators. |
| Sleep Current | 1.5 µA typical at 25°C; reduces system standby power in always-on vehicle modules. |
Pinout & Package
DRV8912QPWPRQ1 is housed in a thermally enhanced 24-pin HTSSOP (PWP) package measuring 7.80 mm × 4.40 mm with an exposed thermal pad for improved heat dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 13, 24) | Power ground reference | Three dedicated ground pins minimize voltage drop and improve current return path integrity for all 12 channels. |
| VM (Pins 16, 21) | Main motor supply input | Dual VM pins reduce IR drop and support high-current delivery to all half-bridges; require ≥10-μF bulk capacitance. |
| VDD (Pin 6) | Logic supply input | 3.3-V or 5-V tolerant; requires 0.1-μF ceramic + ≥1-μF bulk capacitor for stable SPI and register operation. |
| nSLEEP (Pin 8) | Driver enable control | Active-low input; pulls device into 1.5-µA sleep mode when logic low - essential for low-quiescent-power vehicle modules. |
| nSCS (Pin 19) | SPI chip select | Active-low signal enabling SPI communication; internal pull-up eliminates need for external resistor in most designs. |
| SCLK (Pin 20) | SPI clock input | Supports up to 5-MHz operation; data captured on falling edge, shifted out on rising edge. |
| SDI (Pin 5) | SPI data input | Serial command and configuration data entry point; internal pull-down ensures defined state at power-up. |
| SDO (Pin 7) | SPI data output | Reads back status, fault registers, and diagnostics; push-pull output drives directly into next device's SDI in daisy chain. |
| nFAULT (Pin 12) | Fault indicator output | Open-drain output pulled low during any fault (OCP, OTSD, UVLO, etc.); requires external pull-up for system-level alerting. |
| OUT1–OUT12 (Pins 2, 23, 14, 11, 3, 10, 4, 22, 9, 15, 17, 18) | Half-bridge outputs | Twelve dedicated driver outputs; each connects to one motor winding or solenoid coil - no shared or multiplexed pins. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive reliability and lifetime requirements. |
| Configurable slew rate | Two settings (0.6 V/µs or 2.5 V/µs) reduce EMI and prevent shoot-through during switching transitions. |
| Programmable dead time | Adjustable 2–32 µs delay between high-side and low-side FET turn-on prevents cross-conduction in H-bridge configurations. |
| Multi-scheme open-load detection | Supports active, low-current, and negative-current OLD - detects open circuits even with small nominal load currents. |
| Daisy-chain SPI | Enables single MCU SPI port to configure and monitor multiple DRV8912QPWPRQ1 devices without GPIO expansion. |
| Per-channel diagnostics | SPI-accessible registers report individual channel faults (OCP, OLD, thermal), enabling precise root-cause analysis in complex systems. |
Applications
| HVAC Flap Actuation | Side Mirror Adjustment |
|---|---|
Use Scenario: Precise positioning of HVAC blend and mode flaps in automotive climate control systems. IC Role / Device Role / Timing Role: 12-channel half-bridge driver controlling up to six bidirectional DC motors (each requiring two half-bridges). Use Value: Enables independent, fault-monitored actuation of multiple flaps using a single IC - reducing BOM count and PCB area vs. discrete solutions. |
Use Scenario: Motorized horizontal/vertical movement and folding of exterior side mirrors. IC Role / Device Role / Timing Role: Dual half-bridge per mirror axis (X/Y) plus additional channels for fold/unfold solenoids or latches. Use Value: Integrated diagnostics detect stalled motors or broken linkages before mechanical damage occurs - improving field reliability. |
| Automotive LED Dimming | Seat/Mirror Solenoid Control |
Use Scenario: PWM-controlled dimming of interior ambient lighting, puddle lamps, or logo projectors. IC Role / Device Role / Timing Role: Configurable 8-bit PWM generator driving LED strings through half-bridge current paths. Use Value: Eliminates need for external PWM controllers; supports smooth, flicker-free dimming with real-time current feedback. |
Use Scenario: High-reliability activation of seat position locks, mirror fold latches, or trunk release solenoids. IC Role / Device Role / Timing Role: High-side or low-side switch for 12-V solenoids with integrated overcurrent and open-load protection. Use Value: Prevents coil burnout due to stuck plunger or wiring faults - critical for safety-related occupant restraint systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-channel half-bridge driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8910QPWPRQ1 | 10-channel variant; identical pinout, package, and feature set except for two fewer OUT pins. | Used where only ten motor/solenoid channels are required - saves cost and routing complexity without sacrificing diagnostics or SPI functionality. | Select when full 12-channel capacity is unnecessary; maintains full software compatibility and layout reuse. |
| DRV8908QPWPRQ1 | 8-channel variant with eight PWM generators (vs. four in DRV8912QPWPRQ1); same package and pin-compatible footprint. | Better suited for applications requiring independent PWM control per channel (e.g., multi-zone LED dimming), but reduced channel count. | Choose when per-output PWM granularity outweighs channel count - ideal for mixed motor/LED systems with fewer total loads. |
Compared with DRV8912QPWPRQ1, DRV8910QPWPRQ1 offers identical diagnostics and interface in a 10-channel form factor, while DRV8908QPWPRQ1 trades two channels for doubled PWM generator count - enabling finer-grained control at lower channel density.
Availability
DRV8912QPWPRQ1 is available at Aetrix Electronics and suitable for automotive HVAC systems, exterior mirror modules, interior lighting controls, and seat/mirror solenoid actuation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DRV8912QPWPRQ1 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 and embedded processing technologies, with deep expertise in automotive-grade power management and motor control ICs.
DRV8912QPWPRQ1 belongs to the DRV89xx-Q1 family of AEC-Q100 qualified multi-channel half-bridge drivers, engineered specifically for reliable, diagnostic-rich control of brushed DC motors and solenoids in automotive body electronics.
FAQ
What is the maximum operating voltage for DRV8912QPWPRQ1?
The DRV8912QPWPRQ1 supports a recommended operating voltage range of 4.5 V to 32 V on its VM supply pin, with an absolute maximum rating of 40 V. This allows robust operation across 12-V and 24-V automotive battery systems, including load-dump transients up to 35 V commonly seen in modern vehicles. Exceeding 40 V risks permanent damage per the SLVSEC9C datasheet Absolute Maximum Ratings table.
Does DRV8912QPWPRQ1 support daisy-chained SPI communication?
Yes, DRV8912QPWPRQ1 supports daisy-chained SPI communication using its SDO (serial data out) and SDI (serial data in) pins. When multiple devices are connected in series, a single MCU SPI port can configure and read diagnostics from all units - reducing GPIO usage and simplifying firmware architecture. The 5-MHz interface speed ensures timely updates even in systems with >10 devices.
How does DRV8912QPWPRQ1 handle open-load detection?
DRV8912QPWPRQ1 implements three distinct open-load detection (OLD) schemes: standard active OLD, low-current active OLD, and negative-current active OLD. These allow reliable detection of disconnected motors or solenoids across varying load conditions - including low-current scenarios like partially engaged mirror actuators. Each channel's OLD status is accessible via dedicated SPI registers for precise fault localization.
What thermal protection features are built into DRV8912QPWPRQ1?
DRV8912QPWPRQ1 includes both thermal warning (OTW) and thermal shutdown (OTSD) protections, triggered when junction temperature exceeds programmable thresholds. OTW asserts early warning via SPI register flag, allowing host MCU to reduce PWM duty cycle; OTSD forces immediate output disable and nFAULT assertion if temperature continues rising. Both functions operate independently per channel and are validated across –40°C to +150°C junction range.
Is DRV8912QPWPRQ1 pin-compatible with other devices in the DRV89xx-Q1 family?
Yes, DRV8912QPWPRQ1 is pin-to-pin compatible with DRV8910QPWPRQ1, DRV8908QPWPRQ1, DRV8906QPWPRQ1, and DRV8904QPWPRQ1 in the 24-pin HTSSOP (PWP) package. All share identical pin assignments for power, logic, SPI, fault signaling, and ground. Channel count differences are reflected only in unused OUTx pins (e.g., OUT11/OUT12 are no-connect on DRV8910QPWPRQ1), enabling seamless hardware scalability.
DRV8912QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Half Bridge (12)
- Applications:
- DC Motors, General Purpose
- Interface:
- Logic, PWM, SPI
- Load Type:
- Inductive, Capacitive, Resistive
- Technology:
- MOSFET (Metal Oxide)
- Rds On (Typ):
- 750mOhm LS, 750mOhm HS
- Current - Output / Channel:
- 6A
- Current - Peak Output:
- -
- Voltage - Supply:
- 3V ~ 5.5V
- Voltage - Load:
- 4.5V ~ 32V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Features:
- Charge Pump, Slew Rate Controlled
- Fault Protection:
- Over Current, Over Voltage, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-HTSSOP
DRV8912QPWPRQ1 FAQ
1.How can I place an order for DRV8912QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8912QPWPRQ1 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 DRV8912QPWPRQ1 reliable?
The price and inventory of DRV8912QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8912QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for DRV8912QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8912QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8912QPWPRQ1?
DRV8912QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8912QPWPRQ1 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 DRV8912QPWPRQ1?
For technical support, including DRV8912QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8912QPWPRQ1 requirements.
6.How does Aetrix verify that DRV8912QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All DRV8912QPWPRQ1 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 DRV8912QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of DRV8912QPWPRQ1?
All DRV8912QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DRV8912QPWPRQ1, 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 DRV8912QPWPRQ1 part is unused and in its original packaging.
Return procedure for DRV8912QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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