onsemi NCV7728DPAR2G

The NCV7728 is a Hex Half−Bridge Driver with protection features designed specifically for automotive and industrial motion control applications. The NCV7728 has independent controls and diagnostics. The device can be operated in forward, reverse, brake, and high impedance states. The drivers are controlled via a 16 bit SPI interface and are daisy chain compatible. The NCV7728 is comprised of twelve DMOS power drivers (six PMOS High Side Driver and six NMOS Low Side Driver) configured as six half bridges that enables three independent Full Bridge operations. Each output drive is characterized for a max 550 mA DC load and has a typical 2 A surge capability (at VSx = 13.2 V). Strict adherence to integrated circuit die temperature is necessary. Maximum die temperature is 150 °C. This may limit the number of drivers enabled at one time. Output drive control and fault reporting is handled via the SPI (Serial Peripheral Interface) port. An Enable function (EN) provides a low quiescent sleep current mode when the device is not being utilized. No data is stored when the device is in sleep mode. An internal pull down resistor is provided on the EN input to ensure the device is off if the input signal is lost. De−asserting the EN signal clears all the registers and resets the driver. When the EN signal is asserted the IC will proceed with the VCC POR cycle and brings the drivers into normal operation. 16−bit full duplex SPI communication has been implemented for the communication of this IC for device configurations, driver controls and reading the diagnostic data. In addition to the 16−bit diagnostic data, a pseudo bit (PRE_15) can also be retrieved from the SO register. The part is required to be enabled (EN active high) for SPI communication. The inputs for the SPI are TTL logic compatible and are specified by the VthInH and VthInL thresholds. The active low CSB input has a pull up resistor and the remaining SPI inputs have pull−down resistors to bias them to a known state when SPI is not active.

• Low Quiescent Current Sleep Mode
• High−Side and Low−Side Drivers Connected in a Half−Bridge Configuration
• Integrated Freewheeling Protection (LS and HS)
• 0.55 A Peak Current
• RDS(on) = 1 Ω (typ)
• 5 MHz SPI Control
• Compliance with 5 V and 3.3 V Systems
• Undervoltage and Overvoltage Lockout
• Discriminated Fault Reporting
• Overcurrent Protection
• Overtemperature Protection
• Under Load Detection (HS and LS)
• Daisy Chain Compatible with Multiple of 8 bit Devices
• 16−Bit Frame Detection
• NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
• These are Pb−Free Devices

• Automotive
• Industrial
• DC Motor Management for HVAC Application