Overview
The DRV8305NPHPR is a 3-phase smart gate driver IC produced by Texas Instruments. This device is designed for three-phase motor-drive applications, particularly for brushless DC (BLDC) and permanent magnet synchronous motors (PMSM). It features three high-accuracy and temperature-compensated half-bridge drivers, each capable of driving a high-side and low-side N-channel MOSFET. The DRV8305NPHPR includes a charge pump driver that supports 100% duty cycle and low-voltage operation, and it can tolerate load dump voltages up to 45 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage | 4.4 to 45 | V |
| Peak Gate Drive Currents | 1.25 A and 1 A | A |
| Package Type | HTQFP (PHP) | - |
| Pins | 48 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Integrated Voltage Regulator | 3.3 V or 5 V, 50 mA LDO | - |
| PWM Input Control | Up to 200 kHz | Hz |
| Digital Interface | 3.3 V and 5 V | - |
| Thermal Resistance (Junction-to-Ambient) | 26.6 | °C/W |
Key Features
- Programmable high- and low-side slew-rate control
- Charge-pump gate driver for 100% duty cycle
- Three integrated bidirectional current-shunt amplifiers with variable gain settings and adjustable offset reference
- Integrated 50-mA LDO (3.3-V and 5-V options)
- 3-PWM or 6-PWM input control up to 200 kHz
- Single PWM-mode commutation capability
- Serial Peripheral Interface (SPI) for device settings and fault reporting
- Thermally-enhanced 48-pin HTQFP package
- Protection features: fault diagnostics, MCU watchdog, programmable dead-time control, MOSFET shoot-through prevention, MOSFET VDS overcurrent monitors, gate-driver fault detection, reverse battery-protection support, limp home-mode support, and overtemperature warning and shutdown
Applications
- Three-phase BLDC and PMSM motors
- CPAP and pumps
- Robotics and RC toys
- Power tools
- Industrial automation
Q & A
- What is the operating voltage range of the DRV8305NPHPR?
The operating voltage range is from 4.4 V to 45 V.
- What are the peak gate drive currents of the DRV8305NPHPR?
The peak gate drive currents are 1.25 A and 1 A.
- What type of package does the DRV8305NPHPR come in?
The DRV8305NPHPR comes in a 48-pin HTQFP (PHP) package.
- What is the operating temperature range of the DRV8305NPHPR?
The operating temperature range is from -40°C to 125°C.
- Does the DRV8305NPHPR have integrated voltage regulation?
Yes, it has an integrated 50-mA LDO with options for 3.3 V and 5 V.
- What is the maximum PWM input control frequency for the DRV8305NPHPR?
The maximum PWM input control frequency is up to 200 kHz.
- What digital interface voltages does the DRV8305NPHPR support?
The DRV8305NPHPR supports both 3.3 V and 5 V digital interfaces.
- What protection features are included in the DRV8305NPHPR?
The device includes fault diagnostics, MCU watchdog, programmable dead-time control, MOSFET shoot-through prevention, MOSFET VDS overcurrent monitors, gate-driver fault detection, reverse battery-protection support, limp home-mode support, and overtemperature warning and shutdown.
- How does the DRV8305NPHPR communicate with other devices?
The DRV8305NPHPR uses a Serial Peripheral Interface (SPI) for device settings and fault reporting.
- What are some common applications for the DRV8305NPHPR?
Common applications include three-phase BLDC and PMSM motors, CPAP and pumps, robotics and RC toys, power tools, and industrial automation.
