DRV8840_15 Datasheet, PDF (1/28 Pages) Texas Instruments – DC Motor Driver IC

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
DRV8840
SLVSAB7D – MAY 2010 – REVISED DECEMBER 2015
DRV8840 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 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, T_A = 25°C
• Built-In 3.3-V Reference Output
• Parallel Digital Control Interface
• Thermal 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 DRV8840 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. The
output driver block for each consists of N-channel
power MOSFETs configured as full H-bridges to drive
the motor windings. The DRV8840 can supply up to
5-A peak or 3.5-A output current (with proper
heatsinking at 24 V and 25°C).
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
overcurrent protection, short-circuit protection,
undervoltage lockout, and overtemperature.
The DRV8840 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)
DRV8840
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 ^DRV8840
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.