1 Features
• N-channel H-bridge brushed DC motor driver
• 1.65-V to 11-V operating supply voltage range
• Ripple counting feature for:
– On-chip Speed and Position detection
– Integrated Voltage and Speed regulation
• Soft-Start and Stop feature for inrush current
protection
• 240-mΩ RDS(on) (High-Side + Low-Side)
• High output current capability: 4-A Peak, 2-A RMS
• PWM with I2C control interface
– Configuration and diagnostics on I2C registers
– Multi-follower operation support
– Supports standard and fast I2C mode
• Supports 1.8-V, 3.3-V, and 5-V logic inputs
• Integrated current sensing and current regulation
• Analog current sense output (IPROPI)
• Gain select (GAINSEL) feature for:
– High accuracy current sensing down to 10 mA
– Optimized RDS(ON) and overcurrent limit
• Internal charge pump with 100% duty cycle
• Long battery life with low-power sleep mode
– < 100 nA maximum sleep current
• Small package and footprint
– 16-Pin WQFN with PowerPAD™, 3 × 3 mm
• Integrated protection features
– VCC undervoltage lockout (UVLO)
– Overcurrent protection (OCP)
– Thermal shutdown (TSD)
– Stall detection
– Overvoltage protection (OVP)

2 Applications
• Electronic smart lock
• Electronic and robotic toys
• Water and gas meters
• Infusion pumps and other portable medical
equipments
• Electric toothbrush, Beauty & grooming
• Portable printers and Point-of-Sale (POS) Devices

3 Description
The DRV8214 is a high-performance integrated Hbridge
motor driver with integrated speed and position
detection using ripple counting along with additional
features like motor speed and voltage regulation, stall
detection, current sense output, current regulation,
and protection circuitry.
The integrated ripple counting algorithm counts the
number of ripples in the motor current to determine
motor relative position and speed eliminating the
potential need for encoders, hall sensors, or optical
sensors. This reduces board space and design
complexity, and saves on overall system cost.
Integrated speed regulation is used to maintain
constant motor speed over varying input supply
voltages which minimizes current consumption and
saves power over time. This is critical in applications
that have different loading conditions or rely on
battery power for operation where the input voltage
is not constant. Soft-start and stop allows for a
controlled turn-on and turn-off time, reducing large
inrush currents to protect the motor windings from
damage, thereby increasing system reliability and
longevity.
An internal current mirror implements current sensing
and regulation. This eliminates the need for a large
power shunt resistor, saving board area and reducing
system cost. The IPROPI current sense output allows
a microcontroller to detect motor stall or changes in
load conditions. The gain select feature allows high
accuracy current sensing down to 10 mA average
motor current. Using the VREF pin, this device can
regulate the motor current during startup and highload
events without interaction from a microcontroller.
The device supports sensorless motor stall detection
and reporting to microcontroller.