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1FEATURES

? Supports up to 20V Output Pull-up Voltage

? –40°C to 125°C Operating Temperature Range

? Supports Wide Range of Stepper Motors, DC

Motors, Relays, and Inductive Coils

? Low Output VOL of 0.4V (Typical) With

– 140mA Current Sink per Channel at 5.0V

Logic Input(1)

– 1A Current Output when all 7 Channels

Tied in Parallel(1)

? Compatible to 1.8V, 3.3V and 5.0V Microcontrollers

and Logic Interface

? Internal Free-wheeling Diodes for Inductive

Kick-back Protection

? Input Pull-down Resistors Allows Tri-stating

the Input Driver

? Input RC-Snubber to Eliminate Spurious

Operation in Noisy Environment

? Low Input and Output Leakage Currents

? Easy to use Parallel Interface

? ESD Protection Exceeds JESD 22

– 2kV HBM, 500V CDM

? Available in 16-pin SOIC and TSSOP Packages

APPLICATIONS

? Unipolar Stepper Motor Drivers

? Relay and Inductive Load Drivers

? Solenoid Drivers

? Lamp and LED Displays

? Logic Level Shifter

? General Low-Side Switch Applications

DESCRIPTION

DRV777 motor driver features 7 low output

impedance drivers that minimize on-chip power

dissipation. DRV777 supports 1.8V to 5V CMOS logic

input interface thus making it compatible to a wide range of micro-controllers and other logic interfaces.

DRV777 features an improved input interface that

minimizes the input DC current drawn from the

external drivers. Device also features an input RC

snubber that greatly improves its performance in noisy operating conditions. All channel inputs feature

an internal input pull-down resistor thus allowing input

logic to be tri-stated. DRV777 also supports other

logic input levels, e.g. TTL and 1.8V; see typical

characteristics section for details.

As shown in the Functional Diagram, each output of

the DRV777 features an internal free-wheeling diode

connected in a common-cathode configuration at the

COM pin.

Device provides flexibility of increasing current sink

capability through combining several adjacent

channels in parallel. Under typical conditions DRV777

can support up to 1.0A of load current when all 7-

channels are connected in parallel. DRV777 is

available in 16-pin SOIC and 16-pin TSSOP

packages.