"Ti's drv8802-q1 is a 1.6A dual brushless DC motor driver for automotive electronics, with two H-bridge drivers. The output driver includes an n-channel power MOSFET that can be configured as an H-bridge. Each and H-bridge provide 1.1a RMS or peak current of 1.6A, meet aec-q100 specification, and the operating temperature is - 40 ℃ to 125 ℃. It is mainly used in automotive HVAC, automotive valves and automotive entertainment systems. This paper introduces the main characteristics of drv8802-q1, Functional block diagram and application circuit, as well as the main characteristics, block diagram, circuit diagram, bill of materials, PCB design drawing and composite drawing of reference design tida-01357
The DRV8802-Q1 device provides an integrated motor driver soluTIon for automoTIve applications. The device has two H-bridge drivers, and is intended to drive DC motors. The output driver block for each consists of N-channel power MOSFET’s configured as H-bridges to drive the motor windings. The DRV8802-Q1 device can supply up to 1.6-A peak or 1.1-A RMS output current (with proper heatsinking at 24 V and 25℃) per H-bridge.
A simple parallel digital control interface is compatible with industry-standard devices. Decay mode is programmable to allow braking or coasting of the motor when disabled.Internal shutdown functions are provided for over current protection, short circuit protection, under voltage lockout and overtemperature. The DRV8802-Q1 device is available in a 28-pin HTSSOP package with PowerPAD (Eco-friendly: RoHS & no Sb/Br).
Main features of drv8802-q1:
Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results
Device Temperature Grade 1: –40℃ to 125℃ Ambient Operating Temperature
Device HBM ESD Classification Level 2
Device CDM ESD Classification Level C4B
Dual H-Bridge Current-Control Motor Driver
Drives Two DC Motors
Brake Mode
Two-Bit Winding Current Control Allows Up to 4 Current Levels
Low MOSFET On-Resistance
1.6-A Maximum Drive Current at 24 V, 25℃
Built-In 3.3-V Reference Output
Industry Standard Parallel Digital Control Interface
8-V to 45-V Operating Supply Voltage Range
Thermally Enhanced Surface Mount Package
Drv8802-q1 application:
• Automotive HVAC
• Automotive Valves
• Automotive Infotainment
Figure 1. Functional block diagram of drv8802-q1
Figure 2. Drv8802-q1 application circuit diagram
Refer to design tida-01357
The TIDA-01357 TI Design offers a solution for DCmotors by using the DRV8802-Q1 device to controlautomotive HVAC flap actuators or dampers. Thisdesign demonstrates a cost-effective motor driversolution for six flap actuator where all six motors canbe driven simultaneously with an output current up to0.4 A per motor. This reference design maintains asmall solution size and low quiescent current inaddition to offering reverse battery and load dumpprotection, all of which are highlighted in this guide.brushed-DC motors or stepper motors. This TI Design offers a solution for DC-motor-based flap actuators.
The end goal is to develop a cost-effective motor driver solution for six-flap actuators that can be drivensimultaneously. This design includes protection features against load dump conditions and reverse batteryconditions and maintains a small solution size and low quiescent current at the same time.
The TIDA-01357 has been designed with a focus on the following points:
• Simultaneously driving six brushed-DC motors for a flap actuator
• Capability to survive reverse battery and load dump conditions (12-V system)
• Low quiescent current
• Compact design and high performance
• Use of a diagnostics feature (output short detect)
Main characteristics of reference design tida-01357:
• Survives Voltages up to 45 V
• Withstands Reverse Battery Conditions and LoadDump Conditions (12-V System)
• Three-Chip Solution to Drive up to Six MotorsSimultaneously (Two DC Motors per IC)
• Compact Layout; Does Not Require External FETs
• Low Quiescent Current
• Components Selected for Automotive Temperatureand Quality
Reference design tida-01357 application:
• Automotive HVAC Flap Actuator and DamperMotor Drive
• Automotive HVAC Intake Air-Flap Motor Drive
Refer to design tida-01357 electrical characteristics:
Figure 3. Block diagram of reference design tida-01357
Figure 4. Launchpad ™ Outline drawing of hair plate and tida-01357
Figure 5. Circuit diagram of reference design tida-01357 (1)
Figure 6. Circuit diagram of reference design tida-01357 (2)
Refer to design tida-01357 bill of materials:
Figure 7. Reference design tida-01357 PCB composition diagram. Left: top layer component layout; Right: top floor routing layout
Figure 8. Reference design tida-01357 PCB composition diagram: ground floor wiring layout
Figure 9. refer to design tida-01357 PCB design drawing (1)
Figure 10. Tida-01357 PCB design drawing (2)
Figure 11. Tida-01357 PCB design drawing (3)
Figure 12. Tida-01357 PCB design drawing (4)
Figure 13. Tida-01357 PCB design drawing (5)
Figure 14. Tida-01357 PCB design drawing (6)
Figure 15. Tida-01357 PCB design drawing (7)
Figure 16. Reference design tida-01357 PCB design drawing (8): overall dimensions, read the full text, technical area
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