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Texas Instruments DRV777DR — Discrete Semiconductors

DRV777DR 7-Ch Low-Side Driver, 1A, 5-20V, 16-SOIC

MPNDRV777DR
End of Life

Texas Instruments DRV777DR, Fully Integrated Driver, Control and Power Stage, NMOS, 7 Low-Side Outputs, 1A, 5-20V, Parallel Interface, 16-SOIC, -40°C to 125°C.

$0.68Ref. price · indicative, final on quote
Texas Instruments DRV777DR datasheet (PDF)
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DRV777DR specifications
ParameterValue
MountingSurface Mount
Motor type - AC, DCBrushed DC
Motor type - stepperUnipolar
Voltage - load5V ~ 20V
Supply voltage5V ~ 20V
Output current1A
InterfaceParallel
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionDriver - Fully Integrated, Control and Power Stage
TechnologyNMOS
ApplicationsGeneral Purpose
Case16-SOIC (0.154\", 3.90mm Width)
Output configurationLow Side (7)

Product details

Seven low-side NMOS outputs in a 16-SOIC

Each channel is rated for 1A continuous output, driven by a parallel interface. The supply and load voltage range of 5V to 20V lets you run logic and power off a single rail — common in 12V and 24V industrial systems.

The 1A per-output rating is continuous, not pulsed. For a brushed DC motor at 12V, that's about 12W per channel — enough for small pumps, fans, or actuator drives. For unipolar stepper motors, the seven outputs let you drive a five- or six-lead motor with one phase per output, leaving headroom for a brake or indicator. The low-side configuration means the load connects between the positive supply and the drain; the source sinks to ground. Watch the total package dissipation when all seven channels run near 1A — the 16-SOIC copper pad area and airflow matter.

No last-time-buy notice, no end-of-life risk.

Frequently asked questions

What is the DRV777DR equivalent or second source?

The DRV8811PWPR is a functionally different part — it provides four half-bridge outputs for bipolar stepper motors, versus the seven low-side NMOS outputs of the DRV777DR for unipolar steppers. They are not pin-compatible or direct equivalents. No official second-source alternate is listed for the DRV777DR.

Can I use DRV777DR for a stepper motor?

Yes, the DRV777DR is specified for unipolar stepper motors. Its seven low-side outputs can drive a five- or six-lead unipolar stepper with one phase per output, plus an extra channel for a brake or indicator. It is not suited for bipolar stepper motors, which require H-bridge outputs.

What are the specifications of DRV777DR?

The DRV777DR is a fully integrated driver with seven low-side NMOS outputs rated at 1A each. Supply and load voltage range is 5V to 20V. Interface is parallel. Operating temperature is -40°C to 125°C. Package is 16-SOIC. It drives brushed DC and unipolar stepper motors for general-purpose applications.