DRV8801PWPR Ignition Controllers

Technical Specifications of DRV8801PWPR

Datasheet	DRV8801PWPR datasheet
Category	Integrated Circuits (ICs)
Family	PMIC – Motor Drivers, Controllers
Manufacturer	Texas Instruments
Series	–
Packaging	Tape & Reel (TR)
Part Status	Active
Motor Type – Stepper	Bipolar
Motor Type – AC, DC	Brushed DC
Function	Driver – Fully Integrated, Control and Power Stage
Output Configuration	Half Bridge (2)
Interface	Parallel
Technology	DMOS
Step Resolution	–
Applications	General Purpose
Current – Output	2.8A
Voltage – Supply	8 V ~ 38 V
Voltage – Load	8 V ~ 38 V
Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	16-TSSOP (0.173″, 4.40mm Width) Exposed Pad
Supplier Device Package	16-HTSSOP

The DRV8801PWPR offers a flexible solution for motor driver needs and is equipped with a wide range of features. A brushed DC motor, one winding of a stepper motor, or other devices like solenoids can be driven by the device because it is equipped with a full H-bridge. This bridge can also be used to drive the device. A straightforward PHASE-ENABLE interface makes it relatively easy to interface with controller circuits.

Power MOSFETs with N-channel inputs are arranged in an H-bridge configuration in the output stages. The DRV8801PWPR has a peak output current capability of up to 2.8 A and an operating voltage capability of up to 36 V. The required gate drive voltages are generated by a charge pump located inside.

A low-power sleep mode is offered, which shuts down the device’s internal circuitry to achieve a very low quiescent current demand. The nSLEEP pin, dedicated to the sleep mode, can be used to set it.

Undervoltage, charge pump failure, overcurrent, short-to-supply, short-to-ground, and overtemperature are the internal hazards that are guarded against by the device’s built-in protection features. The default pin is used to signal fault conditions as they occur. The DRV880x comes in environmentally friendly 16-pin WQFN packaging with PowerPADTM (RoHS compliant and free of Sb and Br).

Features for the DRV8801PWPR

• Low RDS(on) MOSFETs (typically 0.4 ).
• Low-Power Sleep Mode is a feature.
• Support for 100% PWM Duty Cycle.
• Features an operating supply voltage range of 8 to 36 volts.
• Features Enhanced Thermal Surface-Mount Package.

Protection Features

• VBB Under voltage Lockout features (UVLO).
• Undervoltage Charge Pump (CPUV).
• Overcurrent Protection is a feature (OCP).
• Features protection from short supply.
• Features protection from short to ground.
• It Includes an overheating warning (OTW).
• Overtemperature Shutdown is a feature (OTS).
• Features Pin for Fault Condition Indication (nFAULT).

DRV8801PWPR Applications

• Printers
• Industrial Automation
• Robotics

Specifications

Frequently Asked Questions

What Is an H-Bridge?

An H-bridge will flip the polarity of the voltage and the current on both ends of the circuit when it is linked to a load or an output. These circuits are used in robots and other real-world applications to manage DC motor inversion and speed. Stepper motor control the great majority of DC-AC converters in electrical energy conversion, some DC-DC converters, and other power electronics devices.

This standard way of regulating DC motors is called an “H-bridge,” which derives its name from the fact that the form of the circuit is comparable to the letter H. The letter H is formed by the combination of a horizontal bar, represented by the motor, and four vertical legs, represented by the transistors.

Inverters almost always contain the H-bridge circuit, which can be built out of discrete components or an integrated circuit depending on the designer’s preference (DC-AC conversion). For use with alternating current (AC) motors, switches take direct current (DC) from batteries or another source and convert it into alternating current (AC) with a frequency that can be constant or variable (asynchronous motors, etc.)

How does an H-bridge driver work?

You can buy the H-bridge assembled as an integrated circuit or put it together using individual components.

Because this type of circuit is typically depicted as an H in a schematic diagram, it is sometimes referred to as an H-bridge. Only four switches can be used to construct an H-bridge (solid-state or mechanical). A positive voltage is sent to the motor when switches S1 and S4 are in their closed positions. On the other hand, the motor receives a negative voltage when switches S2 and S3 are in their open positions. You can switch this voltage so the motor can run in the opposite direction by opening switches S1 and S4 and closing switches S2 and S3. This is achieved by toggling the switches in the appropriate order.

If switches S1 and S2 in the preceding notation were closed simultaneously, it would cause a short circuit at the input voltage source and be unsafe. The S3 and S4 toggles are subject to the same kinds of considerations. This type of occurrence is referred to as a shoot-through.

A H bridge can provide power to a device with only two terminals. Through careful rearrangement of the switches in a specific order, it is possible to invert the polarity of the device’s power supply. The discussion moves to the switching regulator’s transformer and the DC motor driver. It is essential to keep in mind that not all switching conditions are without inherent danger. When there is a “short,” the power source and the switches are jeopardized.

Why is it called an H-bridge?

It gets its name from the switching transistors in it are arranged in an ‘H’ arrangement, which is the standard layout for such devices. Its primary application is in controlling forward and reverse rotation in DC motors; nevertheless, it is also present in the drive circuits of latching relays.

Can H-bridge control motor speed?

One of the more flexible control methods is utilizing a circuit known as an “H-Bridge” to regulate a DC motor. The ability to control the speed and direction of the motor is made possible by a configuration of transistors known as an “H-Bridge.”

Conclusion

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