Overview
The DRV8703-Q1, produced by Texas Instruments, is a small single H-bridge gate driver designed to drive a bidirectional brushed-DC motor. It is AEC-Q100 qualified for automotive applications and operates within a temperature range of –40°C to +125°C. The device features a Smart Gate Drive architecture that eliminates the need for external gate components, such as resistors and Zener diodes, while protecting the external FETs. It supports various control interfaces, including PH/EN, independent H-Bridge, and PWM, making it versatile for different controller circuits.
Key Specifications
| Specification | Value |
|---|---|
| Package | VQFN (RHB) with 32 pins |
| Operating Temperature Range | –40°C to +125°C |
| Operating Supply-Voltage Range | 5.5 to 45 V |
| Logic Input Voltage | 1.8 V, 3.3 V, and 5 V |
| PWM Duty Cycle Support | 100% |
| Control-Interface Options | PH/EN, Independent H-Bridge, PWM, and Serial Interface for Configuration |
| Protection Features | Supply Undervoltage Lockout (UVLO), Charge-Pump Undervoltage (CPUV) Lockout, Overcurrent Protection (OCP), Gate-Driver Fault (GDF), Thermal Shutdown (TSD), Watchdog Timer, Fault-Condition Output (nFAULT) |
Key Features
- AEC-Q100 Qualified for Automotive Applications
- Functional Safety-Capable with documentation for system design
- Single H-Bridge Gate Driver driving four external N-channel MOSFETs
- Supports 100% PWM Duty Cycle
- Three Control-Interface Options: PH/EN, Independent H-Bridge, and PWM
- Serial Interface for Configuration
- Smart Gate Drive Architecture with adjustable slew-rate control
- Independent Control of Each H-Bridge
- Current-Shunt Amplifier and Integrated PWM Current Regulation
- Low-Power Sleep Mode
- Protection Features including UVLO, CPUV Lockout, OCP, GDF, TSD, Watchdog Timer, and Fault-Condition Output (nFAULT)
Applications
- Power Window Lift, Sunroof, Seats, Sliding Door, Trunk, and Tailgate
- Relay Replacement
- Brushed-DC Pumps
Q & A
- What is the operating temperature range of the DRV8703-Q1?
The DRV8703-Q1 operates within a temperature range of –40°C to +125°C. - What types of control interfaces does the DRV8703-Q1 support?
The DRV8703-Q1 supports PH/EN, independent H-Bridge, PWM, and a serial interface for configuration. - What is the Smart Gate Drive architecture in the DRV8703-Q1?
The Smart Gate Drive architecture eliminates the need for external gate components, optimizes dead time to avoid shoot-through conditions, and provides programmable slew-rate control to reduce electromagnetic interference (EMI). - What protection features are included in the DRV8703-Q1?
The protection features include Supply Undervoltage Lockout (UVLO), Charge-Pump Undervoltage (CPUV) Lockout, Overcurrent Protection (OCP), Gate-Driver Fault (GDF), Thermal Shutdown (TSD), Watchdog Timer, and Fault-Condition Output (nFAULT). - Can the DRV8703-Q1 support 100% PWM duty cycle?
Yes, the DRV8703-Q1 supports 100% PWM duty cycle. - What is the logic input voltage range for the DRV8703-Q1?
The DRV8703-Q1 supports 1.8 V, 3.3 V, and 5 V logic inputs. - What types of motors can the DRV8703-Q1 drive?
The DRV8703-Q1 is designed to drive bidirectional brushed-DC motors. - Does the DRV8703-Q1 have a low-power sleep mode?
Yes, the DRV8703-Q1 includes a low-power sleep mode. - What is the purpose of the current-shunt amplifier in the DRV8703-Q1?
The current-shunt amplifier provides adjustable current control. - Can the DRV8703-Q1 be used in automotive applications?
Yes, the DRV8703-Q1 is AEC-Q100 qualified for automotive applications.
