DRV3245E-Q1 Texas instruments

DRV3245E-Q1

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DRV3245E-Q1

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Описание

The DRV3245E-Q1 device is a FET gate driver IC for three-phase motor-drive applications. The device is intended for high-temperature automotive applications and is designed according to the applicable requirements of ISO 26262 for functional safety applications. The device provides three half-bridge drivers each capable of driving a high-side and low-side N-channel MOSFET while also providing sophisticated protection and monitoring of the FETs. A charge-pump driver enables 100% duty cycle and supports low battery voltages during cold-crank operation. The integration of current-sense amplifiers, integrated phase comparators, and SPI-based configuration enable reduction of the bill of materials (BOM) and space on the printed circuit board (PCB) because of the elimination of most external and passive components. The DRV3245E-Q1 device also integrates diagnostics and protection for each internal block and provides support for common system diagnostic checks each of which can be instantiated and reported through SPI. This flexibility of the integrated features allows the device to integrate seamlessly into a variety of safety architectures.

AEC-Q100 qualified for automotive applications:
- Device temperature grade 0:
  –40°C to +150°C, T_A
SafeTI™semiconductor component
- Developed according to the applicable requirements of ISO 26262
4.5-V to 45-V operating voltage
Programmable peak gate drive currents up to 1A
Charge-pump gate driver for 100% Duty Cycle
Current-shunt amplifiers and phase comparators
- A Device: 3 current-shunt amplifiers and 3-phase comparators with status through SPI
- B Device: 2 current-shunt amplifiers and 3-phase comparators with real-time monitor through digital pins
3-PWM or 6-PWM input control up to 20 kHz
Single PWM-mode commutation capability
Supports both 3.3-V and 5-V digital interface
Serial peripheral interface (SPI)
Thermally-enhanced 48-Pin HTQFP
Protection features:
- Internal regulators, battery voltage monitor
- SPI CRC
- Clock monitor
- Analog built-in self test
- Programmable dead-time control
- MOSFET shoot-through prevention
- MOSFET V_DS overcurrent monitors
- Gate-source voltage real time monitor
- Overtemperature warning

Rating	Automotive
Architecture	Gate driver
Control interface	1xPWM, 3xPWM, 6xPWM
Gate drive (A)	1
Vs (min) (V)	4.5
Vs ABS (max) (V)	45
Features	Current sense Amplifier, Phase Comparators, SPI/I2C, Watchdog timer
Operating temperature range (°C)	-40 to 150
TI functional safety category	Functional Safety-Compliant