TPS2838PWPR datasheet(2/20 Pages) TI

2 / 20 page

TPS2838, TPS2839

TPS2848, TPS2849

SLVS367A – MARCH 2001 – REVISED JUNE 2001

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description (continued)

The SYNC pin can be used regardless of load to disable the synchronous FET driver and operate the power

supply nonsynchronously.

A power ready/undervoltage lockout function outputs the status of the VCC-pin voltage and driver regulator

output on the open-drain PWRRDY pin. This feature can be used to enable a controller’s output once the VCC

voltage reaches the threshold and the regulator output is stable. This function ensures both FET drivers are off

when the VCC voltage is below the voltage threshold.

The TPS2838/39/48/49 devices are offered in the thermally enhanced 14-pin and 16-pin PowerPAD TSSOP

package. The PowerPAD package features an exposed leadframe on the bottom that can be soldered to the

printed-circuit board to improve thermal efficiency. The TPS2838/48 are noninverting control logic while the

TPS2839/49 drivers are inverting control logic.

TPS2838PWPR Datasheet(PDF) 2 Page - Texas Instruments