TPS26613 datasheet(21/45 Pages) TI

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OUT

-Vs

+Vs

GND

MODE

VSNS

TPS26610

TPS26613

Burden

LOOP

GND

OUT = ILOOP X RBurden

I+

I-

Figure 8-18. Supply Sensing With VSNS

+Vs = 15 V, –Vs = –15 V, ROUT = 250 Ω, MODE = GND

Figure 8-19. Transition to Loop Power With R1 = 47

kΩ and R2 = 6.8 kΩ for Supply Sensing

+Vs = 15 V, –Vs = –15 V, ROUT = 250 Ω, MODE = GND

Figure 8-20. Transition to ± Vs Supplies Power with

R1 = 47 kΩ and R2 = 6.8 kΩ for supply Sensing

8.3.6 Enable Control With TPS26611, TPS26612, and TPS26614

TPS26611, TPS26612, and TPS26614 devices feature an EN pin for externally controlling the device through a

GPIO pin. To enable the device, EN pin can be left floating. The pin is internally pulled up with V(EN).

EN can also be made high with external voltage more than V(ENR) but less that or equal to 5 V. The internal FETs

are turned off when EN is pulled below V(ENF). EN pin can source and sink a current of I(EN_LKG). See Electrical

Characteristics for V(ENF), V(ENR) and I(EN_LKG). The EN feature helps the system designer to design universal

voltage and current analog inputs and outputs where a lot of pin multiplexing options are made available to the

end user. For turn-on and turn-off delay with EN pin, see tON_EN_dly and tOFF_EN_dly in Timing Requirements.

Figure 8-22 and Figure 8-23 illustrate the turn-on and turn-off control with enable pin.

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TPS2661

SLVSFE3C – NOVEMBER 2020 – REVISED DECEMBER 2021

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TPS26613 Datasheet(PDF) 21 Page - Texas Instruments