Texas Instruments DRV8844 Bedienungsanleitung
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DRV8844 Quad Half-Bridge Driver IC
1 Features
•Quad 1/2-H-Bridge DC Motor Driver
–Can Drive Four Solenoids, Two DC Motors,
One Stepper Motor, or Other Loads
–Full Individual Half Bridge Control
–Low MOSFET On-Resistance
•2.5A Maximum Drive Current at 24V, 25°C
•Floating Input Buffers Allow Dual (Bipolar)
Supplies (up to ±30V)
•Built-In 3.3V, 10mA LDO Regulator
•Industry Standard IN/IN Digital Control Interface
•8V to 60V Operating Supply Voltage Range
•Outputs Can Be Connected in Parallel
•Thermally Enhanced Surface Mount Package
2 Applications
•Textile Machines
•Office Automation Machines
•Gaming Machines
•Factory Automation
•Robotics
3 Description
The DRV8844 provides four individually controllable
1/2-H-bridge drivers. The device can be used to drive
two DC motors, one stepper motor, four solenoids,
or other loads. The output driver channel for each
channel consists of N-channel power MOSFET’s
configured in a 1/2-H-bridge configuration.
The DRV8844 can supply up to 2.5A peak or 1.75A
RMS output current per channel (with proper PCB
heatsinking at 24V and 25°C) per H-bridge.
Separate inputs to independently control each 1/2-
H-bridge are provided. To allow operation with split
supplies, the logic inputs and nFAULT output are
referenced to a separate floating ground pin.
Internal shutdown functions are provided for
over current protection, short circuit protection,
undervoltage lockout, and overtemperature.
The DRV8844 is available in a 28-pin HTSSOP
package with PowerPAD
™
(Eco-friendly: RoHS & no
Sb/Br).
Device Information
(1)
PART NUMBERPACKAGEPACKAGE SIZE
(2)
DRV8844HTSSOP (28)9.70mm × 6.40mm
(1)For all available packages, see the orderable addendum at
the end of the data sheet.
(2)The package size (length × width) is a nominal value and
includes pins, where applicable.
Simplified Schematic
DRV8844
SLVSBA2E – JULY 2012 – REVISED JULY 2025
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Produktspezifikationen
| Marke: | Texas Instruments |
| Kategorie: | Nicht kategorisiert |
| Modell: | DRV8844 |
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