Overview
The LV8968BBUWR2G, produced by onsemi, is a multi-purpose three-phase Brushless DC (BLDC) motor predriver designed primarily for automotive applications. It is developed in compliance with ISO 26262, ensuring it meets stringent functional safety (FuSa) requirements. This device features a wide operating voltage range, extensive protection and monitoring capabilities, and integrated system power supplies. The LV8968BBUWR2G is AEC-Q100 qualified and PPAP capable, making it suitable for a variety of automotive and industrial applications.
Key Specifications
| Parameter | Unit | Typical | Min | Max |
|---|---|---|---|---|
| Supply Voltage (VS) | V | - | 4.5 | 40 |
| Operating Voltage Range | V | - | 8 | 28 |
| Extended Voltage Range (Logic Level Mode) | V | - | 6 | 33 |
| Gate Current | mA | 400 | - | - |
| Motor PWM Frequency | kHz | - | - | 30 |
| Junction Temperature | °C | - | -40 | 175 |
| Linear Regulator Output | V | 5 / 3.3 | - | - |
| Linear Regulator Current | mA | - | - | 50 |
Key Features
- Full drive power from 8 V to 28 V supply voltage with transient tolerance from 4.5 V to 40 V.
- Extended voltage range from 6 V to 33 V using logic level mode.
- Up to 30 kHz motor PWM with individual six gate control or drive-3 mode with integrated programmable dead time.
- 5 V / 3.3 V linear regulator for external loads up to 50 mA.
- Extensive system protection features including drain-source short detection, overcurrent shutoff, low gate voltage warning, overtemperature warning and shutoff, and over/undervoltage protection.
- SPI interface for parameter setup and diagnostic access.
- Nonvolatile (OTP) memory for storing critical system parameters.
- Integrated window watchdog timer function.
- AEC-Q100 qualified and PPAP capable.
- Thermally efficient exposed die 48-pin SQFP package for transient operation up to 175°C.
Applications
- Suspension, park brake, transmission, steering pump, vacuum pump, battery pack cooling, sliding door, lift gate, etc.
- Robotics.
- Light e-mobility and motive power.
- Industrial equipment.
- White goods.
Q & A
- What is the primary application of the LV8968BBUWR2G?
The LV8968BBUWR2G is primarily designed for automotive applications, complying with ISO 26262 for functional safety.
- What is the operating voltage range of the LV8968BBUWR2G?
The device operates from 8 V to 28 V with transient tolerance from 4.5 V to 40 V.
- What protection features are included in the LV8968BBUWR2G?
The device includes extensive protection features such as drain-source short detection, overcurrent shutoff, low gate voltage warning, overtemperature warning and shutoff, and over/undervoltage protection.
- How does the SPI interface function in the LV8968BBUWR2G?
The SPI interface allows for real-time parameter setup and diagnostic access, including dynamic access to dead time, amplifier gain, and short-circuit levels.
- What is the maximum junction temperature of the LV8968BBUWR2G?
The maximum junction temperature is 175°C.
- Is the LV8968BBUWR2G AEC-Q100 qualified?
Yes, the LV8968BBUWR2G is AEC-Q100 qualified and PPAP capable.
- What types of motors can the LV8968BBUWR2G control?
The device can control three-phase Brushless DC (BLDC) motors.
- How many gate drivers does the LV8968BBUWR2G provide?
The device provides six gate drivers with 400 mA typical gate current.
- What is the purpose of the WAKE pin in the LV8968BBUWR2G?
The WAKE pin activates the IC from sleep mode and enables the internal linear regulator.
- Does the LV8968BBUWR2G have integrated power supplies?
Yes, the device includes an internal 3.3 V regulator, a linear regulator for external loads, and a VG regulator for gate voltages.
