Overview
The DRV8305NPHP is a 45-V max 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 DRV8305 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) 48 pins | - |
| Operating Temperature Range | -40 to 125 | °C |
| PWM Input Control Frequency | Up to 200 kHz | kHz |
| Integrated Voltage Regulator | 3.3 V or 5 V, 50 mA | V, mA |
| 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 current-shunt amplifiers for accurate low-side current measurements
- 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
- Supports both 3.3-V and 5-V digital interface
- Serial Peripheral Interface (SPI) for device settings and fault reporting
- Thermally-enhanced 48-pin HTQFP package
- Protection features including fault diagnostics, MCU watchdog, MOSFET shoot-through prevention, 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 DRV8305NPHP?
The operating voltage range is from 4.4 V to 45 V.
- What are the peak gate drive currents of the DRV8305NPHP?
The peak gate drive currents are 1.25 A and 1 A.
- What type of package does the DRV8305NPHP come in?
The DRV8305NPHP comes in a 48-pin HTQFP (PHP) package.
- What is the operating temperature range of the DRV8305NPHP?
The operating temperature range is from -40°C to 125°C.
- Does the DRV8305NPHP support SPI communication?
Yes, it supports Serial Peripheral Interface (SPI) for device settings and fault reporting.
- What are the integrated voltage regulator options for the DRV8305NPHP?
The integrated voltage regulator options are 3.3 V or 5 V, with a 50 mA output.
- What protection features does the DRV8305NPHP include?
The protection features include fault diagnostics, MCU watchdog, MOSFET shoot-through prevention, and overtemperature warning and shutdown.
- Can the DRV8305NPHP handle 100% duty cycle operation?
Yes, it includes a charge-pump gate driver that supports 100% duty cycle operation.
- What is the maximum PWM input control frequency for the DRV8305NPHP?
The maximum PWM input control frequency is up to 200 kHz.
- Does the DRV8305NPHP have integrated current-shunt amplifiers?
Yes, it includes three integrated current-shunt amplifiers for accurate low-side current measurements.
