The DRV8243HQRXYRQ1 device family is a fully integrated H-bridge driver for a variety of automotive applications. The device can be configured as a single full-bridge driver, or as two independent half-bridge drivers. This monolithic power device-in-package system designed on a BiCMOS high-power process technology node offers excellent power handling and thermal performance, small package size, easy layout, EMI control, accurate current sensing and diagnostics, High robustness. This series offers the same pin function and scalable RON (current capability) to support different loads.

DRV8243HQRXYRQ1 These devices integrate an N-channel H-bridge, charge pump regulator, high-side current sensing and regulation, current ratiometric output, and protection circuitry. A low power sleep mode is also provided for lower quiescent current. These devices provide voltage monitoring and load diagnostics as well as overcurrent and overtemperature protection. Indicates a fault condition on the nFAULT pin. These devices are available in three variants - hardwired interface: HW (H) and two SPI interface variants: SPI (P) and SPI (S), where SPI (P) is used for externally supplied logic power and SPI (S) is used for Internally generated logic power. SPI interface variants allow for more flexible device configuration and fault monitoring.

Features:

AEC-Q100 Qualified for Automotive Applications:

– Temperature class 1: –40°C to +125°C, TA

• Provides functional safety

– Documentation to aid in functional safety system design

• 4.5V to 35V (40V Absolute Maximum) Operating Voltage Range

• VQFN-HR package: RON_LS + RON_HS: 84mΩ

• HVSSOP package: RON_LS + RON_HS: 98mΩ

• IOUT max = 12A

• PWM operation up to 25KHz with automatic dead-time assertion

• Configurable slew rate and spread spectrum clocking for low electromagnetic interference (EMI)

• Integrated Current Sensing (No Shunt Resistor Required)

• Proportional load current output on IPROPI pin

• Configurable current regulation

• Protection and diagnostics with configurable fault response (latch or retry)

– Load diagnostics in off-state and on-state to detect open loads and short circuits

– Voltage monitoring on the power supply (VM)

– Overcurrent protection

- Overheating protection

– Fault indication on nFAULT pin

• Supports 3.3-V and 5-V Logic Inputs

• Low Sleep Current: 1 μA Typical at 25°C

• 3 models: HW (H), SPI (S) or SPI (P)

• Configurable control modes:

– Single full-bridge implementation using PWM or PH/EN modes

– Implementation of two half-bridges using independent mode