onsemi NCV7724DQBR2G

The NCV7724B is an eight channel half−bridge driver with protection features designed specifically for automotive and industrial motion control applications. The product has independent controls and diagnostics, and the drivers can be operated in forward, reverse, brake, and high impedance states. The device is controlled via a 16 bit SPI interface and is daisy chain compatible. Outputs 1 and 2 can be controlled through an external PWM signal. The NCV7724B is comprised of sixteen NMOS power drivers. The drivers are arranged as eight half−bridge output channels, allowing for four independent full−bridge configured loads. Output control and status reporting is handled via the SPI (Serial Peripheral Interface) communications port. OUT1 and OUT2 can be controlled with an external PWM signal. Each output is characterized for a typical 0.5 A DC load and has a maximum 2.0 A surge capability (at VSX = 13.2 V). Maximum allowable junction temperature is 150°C and may constrain the maximum load current and/or limit the number of drivers active at once. An active−high enable function (EN) allows global control of the outputs and provides a low quiescent current sleep mode when the device is not being utilized. An internal pull−down resistor is provided on the input to ensure the device enters sleep mode if the input signal is lost. After EN transitions from low to high, the VCC POR cycle will proceed and bring the device into normal operation. The device configuration registers can then be programmed via SPI. Bringing EN low clears all registers (no configuration or status data is stored), disables the drivers, and enters sleep mode. 16−bit full duplex SPI communication has been implemented for device configuration, driver control, and reading the status data. In addition to the 16−bit status data, a pseudo−bit (PRE_15) can also be retrieved from the SO output. The device must be enabled (EN = H) for SPI communication. The SPI inputs are TTL compatible and the SO output high level is defined by the applied VCC.

• Low Quiescent Current Sleep Mode
• High−Side and Low−Side Drivers Connected in Half−Bridge Configurations
• Integrated Freewheeling Protection (LS and HS)
• 500 mA Typical, 1.1 A Peak Current
• RDS(on)=0.8 Ω (Typ)
• OUT1 and OUT2 External PWM Control
• 5 MHz SPI Communication
• 16 Bit Frame Error Detection
• Daisy Chain Compatible with Multiple of 8 bit Devices
• Compliance with 3.3 V and 5 V Systems
• Undervoltage and Overvoltage Lockout
• Per Channel Fault Reporting
• Overcurrent Protection
• Overtemperature Protection
• Underload Detection (HS and LS)
• Exposed Pad Package
• NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
• This is a Pb−Free Device

• Automotive
• Industrial DC Motor Management for HVAC Application