With three new devices added today, the DRV32xx-Q1 family now comprises four 3-phase, brushless, pre-FET motor drivers equipped with built-in diagnostic capabilities. The DRV3202-Q1 offers automotive system designers integrated power management and CAN interface to help reduce board space and design complexity in their safety-critical applications. The DRV3203-Q1 and DRV3204-Q1 help TI customers design safety-critical applications to meet ASIL-B, while the DRV3201-Q1, previously introduced in October, 2012 helps TI customers design safety-critical applications to meet ASIL-D requirements.
The three new motor drivers provide designers with reliable, space-saving options intended to help them address the challenges of space constraints and harsh conditions such as high-temperature, low-voltage start-stop and cold crank situations. Applications include power steering, hybrid electric vehicles/electric vehicles (HEV/EV), power train, oil pump, water pump and electric braking systems.
Key features and benefits of the DRV32xx-Q1 family:
· Optimized component count and board space for cost- and space-sensitive applications: The DRV3202-Q1 integrates a voltage regulator and CAN interface to reduce component count and minimize system cost and board space.
· Built-in diagnostics: The DRV32xx-Q1 family integrates hard-wired diagnostic circuits including a pre-FET driver short, over/under voltage and over temperature. The system's microcontroller can quickly communicate with the DRV32xx-Q1 family and monitor internal status through serial peripheral interface (SPI).
· Devices help TI customers design applications to meet the functional safety requirements of ISO 26262: The DRV3201-Q1 can help TI customers design critical-safety applications, such as electric power steering and electric braking systems, to meet ASIL-D requirements, and the DRV3204-Q1 and DRV3203-Q1 can help customers design safety applications, such as oil pump and water pump, to meet ASIL-B requirements.
· Design simplicity for start-stop and cold crank applications: With an integrated boost regulator, the DRV3201-Q1 eliminates the need for a large capacitor to hold battery voltage. With an integrated low drop-out linear regulator controller (LDO) and an external FET, the DRV3203-Q1 and DRV3204-Q1 also eliminate the need for a large capacitor