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Analogysemi Automotive H-bridge Intelligent Gate Driver

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The DR702Q/703Q are intelligent single H-bridge drivers for automotive applications that can simultaneously drive four external N-channel MOSFETs to realize bi-directional brushed DC motors.

Analogysemi Automotive H-bridge Intelligent Gate Driver

DR702Q

Automotive H-bridge Intelligent Gate Driver

 

The DR702Q/703Q are intelligent single H-bridge drivers for automotive applications that can simultaneously drive four external N-channel MOSFETs to realize bi-directional brushed DC motors. The DR702Q supports a hardware configuration interface and the DR703Q supports an SPI configuration interface. Both devices support PH/EN, independent H-Bridge, or standard PWM interfaces for forward, reverse, slow decay, coast, and other motor controls. In addition, the integrated charge pump architecture supports a 100% duty cycle output, which can also be used to drive an external battery reverse protection switch.The DR702Q/703Q can also be used to sequentially control multiple DC motors in a cost-effective manner through independent half-bridge modes. The DR702Q/703Q incorporates a current sampling amplifier and includes the ability to regulate the winding current using a fixed turn-off time PWM current chopper. By integrating a smart gate driver module, the DR702Q/703Q devices can protect external FETs without the need for any external gate components, such as resistors and zener diodes, etc. The DR702Q/703Q devices combine protection with gate drive configurability to improve design simplicity and bring a new level of intelligence to motor systems. For example, configurable dead-time optimization avoids pass-through, active/passive pull-down, and prevents dV/dT gate rotation; and programmable slew rate control provides flexibility in reducing EMI. The DR702Q/703Q also integrates a variety of protection functions - UVLO, CPUV, OCP, TSD, GDF, watchdog timer, and more. The DR702Q/703Q devices are available in a QFN-32 package.

 

Characteristic

• Automotive grade AEC-Q100 certified 

    -Device Temperature Class 1;

    −40°C to 125°C Operating Ambient Temperature ;

• Single H-Bridge Gate Driver 

    -Drives four external N-channel MOSFETs 

    -Supports 100% PWM duty cycle 

• Supply Voltage Range: 

    -Operating voltage: 5.5V to 45V  

    -Maximum absolute rating: 55V  

• Three control interface options: 

    -PH/EN, independent H-bridge, and PWM 

• SPI  interface (DR703Q) 

• Intelligent gate drive architecture 

    -Adjustable slew rate control  

    -Adjustable output dead time  

• Supports 1.8V, 3.3V, and 5V logic inputs  

• Integrated current sampling amplifier 

• Integrated PWM current regulation 

• Low-power sleep mode  

• Protection Features 

    -Power supply undervoltage lockout (UVLO) 

    -Charge pump undervoltage lockout (CPUV) 

    -Overcurrent protection (OCP) 

    -Gate driver failure (GDF) 

    -Thermal Shutdown (TSD) 

    -Watchdog timer (DR703Q)

    -Fault output pin (nFAULT)

 

Application

• Power window lifters, sunroofs, seats, sliding doors and tailgates 

• Relay Alternative 

• Electric Parking Brake (EPB) 

• Brushed DC pumps

 

 


 

Sample Request

 

Samples are available, please feel free to tontaact local sales or send email to sales@szapl.com or call +86-4008-860-626.

 

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