Part A
DRV8300DRGER
Texas Instruments
- Lifecycle
- Active
- Stock
- 2048 PCS
- Package
- VQFN-24
- Series
- PMIC - Gate Drivers
Replacement verdict
Compatible functional replacement candidate
The DRV8300DRGER and DRV8304SRHAR are both three-phase gate drivers with integrated current sense amplifiers, but they differ in drive current, package footprint, and supply voltage range. The DRV8304SRHAR offers higher source/sink current and a wider operating voltage, making it a stronger candidate for higher-power motor drive designs, while the DRV8300DRGER remains suitable for lower-current applications. Pinout and peripheral component requirements must be validated before committing to a drop-in substitution.
Output Current
Validation required
Supply Voltage Range
Validation required
Package Type
Validation required
Channel Configuration
High match
Parts at a glance
Part B
DRV8304SRHAR
Texas Instruments
- Lifecycle
- Active
- Stock
- 8304 PCS
- Package
- VQFN-40
- Series
- PMIC - Gate Drivers
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | DRV8300DRGER | DRV8304SRHAR | Why it matters |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Same manufacturer indicates consistent design methodology and support ecosystem. |
| Product Category | Three-phase gate driver | Three-phase gate driver with integrated current sense amplifiers | The DRV8304 integrates current sense amplifiers, reducing external component count versus the DRV8300. |
| Number of Gate Drivers | 3 (three half-bridges) | 3 (three half-bridges) | Both drive three-phase BLDC motors, so motor topology compatibility is equivalent. |
| Gate Drive Voltage (VGS) | Up to 20 V (trickle charge pump) | Up to 15 V (charge pump) | Higher gate drive voltage supports a wider range of MOSFETs and can reduce conduction losses. |
| Supply Voltage Range (VM) | 4.5 V to 60 V | 6 V to 38 V | The DRV8300 supports higher bus voltages, enabling use in higher-voltage motor systems. |
| Integrated Current Sense Amplifiers | No | Yes (3x) | Integrated current sense amplifiers simplify design and reduce board space in the DRV8304. |
| Peak Gate Drive Current (Source/Sink) | 1 A / 2 A | 1 A / 2 A | Similar drive strength means comparable switching performance for typical MOSFETs. |
| Package | VQFN-24 (RGE) | VQFN-40 (RHA) | Different package footprints and pin counts affect PCB layout and thermal design. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Identical temperature ratings ensure both parts suit the same environmental conditions. |
| Interface | PWM (6x inputs) | PWM (6x inputs) with SPI configuration | The DRV8304 offers SPI configurability, adding flexibility but requiring more MCU resources. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | DRV8300DRGER | DRV8304SRHAR |
|---|---|---|
| Part Status | Active | Active |
| Driven Configuration | High-Side and Low-Side | High-Side or Low-Side |
| Channel Type | 3-Phase | 3-Phase |
| Number of Drivers | 3 | 3 |
| Gate Type | N-Channel MOSFET | N-Channel MOSFET |
| Voltage - Supply | 5V ~ 20V | 6V ~ 38V |
| Logic Voltage - VILVIH | 0.8V, 2V | 0.8V, 1.5V |
| Current - Peak Output(Source Sink) | 750mA, 1.5A | 150mA, 300mA |
| Input Type | Non-Inverting | Non-Inverting |
| Rise / Fall Time(Typ) | 12ns, 12ns | 300ns, 150ns |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| High Side Voltage - Max(Bootstrap) | 105 V | - |
Frequently asked questions
What are the key differences between the DRV8300DRGER and DRV8304SRHAR?
The DRV8300DRGER is a three-phase gate driver with three integrated current shunt amplifiers, housed in a 24-pin VQFN package. The DRV8304SRHAR is a three-phase gate driver with integrated current shunt amplifiers and a buck regulator, housed in a 40-pin VQFN package. The DRV8304SRHAR integrates additional power management features not present in the DRV8300DRGER.
Are the DRV8300DRGER and DRV8304SRHAR pin-to-pin compatible?
No. The DRV8300DRGER uses a 24-pin VQFN package, while the DRV8304SRHAR uses a 40-pin VQFN package. The different pin counts and package sizes prevent direct pin-to-pin compatibility.
What is the maximum gate drive voltage for each device?
The DRV8300DRGER supports a gate drive voltage range of 5 V to 20 V. The DRV8304SRHAR supports a gate drive voltage range of 6 V to 60 V. These values are specified in the respective manufacturer datasheets.
Do both devices include integrated current shunt amplifiers?
Yes. Both the DRV8300DRGER and DRV8304SRHAR include three integrated current shunt amplifiers for three-phase current sensing.
Does the DRV8304SRHAR include a buck regulator?
Yes. The DRV8304SRHAR integrates a buck regulator, which can provide an auxiliary power rail. The DRV8300DRGER does not include an integrated buck regulator.
What are the typical applications for each device?
The DRV8300DRGER is typically used in three-phase motor drive applications such as fans, pumps, and robotics. The DRV8304SRHAR is used in similar three-phase motor drive applications but is suited for systems requiring an integrated buck regulator for auxiliary power, such as battery-powered motor drives and compact power tools.
Can the DRV8300DRGER be used as a drop-in replacement for the DRV8304SRHAR?
No. Due to differences in package size, pin count, gate drive voltage range, and integrated features such as the buck regulator, the DRV8300DRGER cannot be used as a drop-in replacement for the DRV8304SRHAR without significant design changes.