DRV8860 Datasheet, PDF (1/31 Pages) Texas Instruments – 8 Channel Serial Interface Low-Side Driver

DRV8860
www.ti.com
SLRS065A – SEPTEMBER 2013 – REVISED NOVEMBER 2013
8 Channel Serial Interface Low-Side Driver
Check for Samples: DRV8860
FEATURES
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• 8-Channel Protected Low-side Driver
– Eight NMOS FETs with Overcurrent
Protection
– Integrated Inductive Catch Diodes
– Open/Short Load Detection
– Configurable 100% Output Timing
– Configurable PWM Duty Cycle
• Continuous Current Driving Capability
– 560mA (Single Channel on)
– 280mA (Quad Channels on)
– 200mA (Oct Channels on)
– Support Parallel Configuration
• 8V to 38V Supply Voltage Range
• Input Digital Noise Filter for Noise Immunity
• Internal Data Read Back Capability for Reliable
Control
• Programmable Current Profile
– Configurable 100% Output Timing. Fast
Activation of Solenoid.
– Configurable PWM Duty Cycle in Chopping
Mode. Reducing Power Consumption and
Thermal Dissipation in Hold-mode of
Solenoid.
• Serial Interface
– Daisy Chain Connection
• 16-pin TSSOP Package
• Protection and Diagnostic Features
– Overcurrent Protection (OCP)
– Open Load Detection (OL)
– Over-Temperature Shutdown (OTS)
– Under-Voltage Lockout (UVLO)
– Individual Channel Status Report
– Fault Condition Alarm
APPLICATIONS
• Relays
• Unipolar Stepper Motors
• Solenoids
• Electromagnetic Drivers
• General Low-side Switch Applications
DESCRIPTION
The DRV8860 provides an 8-channel low side driver
with overcurrent protection and open/shorted load
detection. It has built-in diodes to clamp turn-off
transients generated by inductive loads, and can be
used to drive unipolar stepper motors, DC motors,
relays, solenoids, or other loads.
DRV8860 can supply up to 200mA × 8 channel
continuous output current. The current driving
capability increased with lower PWM duty cycle. A
single channel can deliver up to 560mA continuous
output current. Refer to the OUTPUT CURRENT
RECOMMENDATION section for details.
A serial interface is provided to control the DRV8860
output drivers, configure internal setting register and
read the fault status of each channel. Multiple
DRV8860 devices can be daisy-chained together to
use a single serial interface. Energizing-Time and
Holding-PWM-Duty cycles are configurable through
serial interface as well. These functions allow for
lower temperature operation rather than traditional
always-on solutions.
Internal shutdown functions are provided for over
current protection, short circuit protection, under
voltage lockout, and over temperature. DRV8860 can
diagnosis the open load condition. Fault information
for each channel can be read out through serial
interface and indicated by an external fault pin.
The DRV8860 is packaged in a 16 pin TSSOP
package (Eco-friendly: RoHS and no Sb/Br).
Ordering Information
For the most current packaging and ordering information, see the Package Option Addendum at the end of this
document, or see the TI web site at www.ti.com.
The package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated