DRV8842_15 Datasheet, PDF (1/27 Pages) Texas Instruments – DC Motor Driver IC

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
DRV8842
SLVSAB8F – MAY 2010 – REVISED DECEMBER 2015
DRV8842 DC Motor Driver IC
1 Features
•1 Single H-Bridge Current-Control Motor Driver
• 8.2-V to 45-V Operating Supply Voltage Range
• Five-Bit Winding Current Control Allows Up to 32
Current Levels
• Low MOSFET R_DS(on) Typical 0.65 Ω (HS + LS)
• 5-A Maximum Drive Current at 24 V, 25°C
• Built-In 3.3-V Reference Output
• Industry-Standard PWM Control Interface
• Thermally Enhanced Surface Mount Package
• Protection Features:
– Overcurrent Protection (OCP)
– Thermal Shutdown (TSD)
– VM Undervoltage Lockout (UVLO)
– Fault Condition Indication Pin (nFAULT)
2 Applications
• Printers
• Scanners
• Office Automation Machines
• Gaming Machines
• Factory Automation
• Robotics
3 Description
The DRV8842 provides an integrated motor driver
solution for printers, scanners, and other automated
equipment applications. The device has one H-bridge
driver, and is intended to drive one DC motor, one
coil of a stepper motor, or other loads. The output
driver block consists of N-channel power MOSFETs
configured as an H-bridge. The DRV8842 can supply
up to 5-A peak or 3.5-A RMS output current (with
proper heatsinking at 24 V and 25°C).
Separate inputs to independently control each half of
the H-bridge are provided.
Internal shutdown functions are provided for
overcurrent protection, short-circuit protection,
undervoltage lockout, and overtemperature.
TheDRV8842 is available in a 28-pin HTSSOP
package with PowerPAD™ (Eco-friendly: RoHS & no
Sb/Br).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8842
HTSSOP (28)
9.70 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
8.2 to 45 V
ENBL ^DRV8842
PHASE
+
Current Control _H-Bridge
Decay Mode _{Motor Driver} ^{5 A}
-
nFAULT
Current
Control
1
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.