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T

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16

REF3425-Q1, REF3430-Q1, REF3433-Q1, REF3440-Q1, REF3450-Q1

SBAS901 – JULY 2018

www.ti.com

Product Folder Links: REF3425-Q1 REF3430-Q1 REF3433-Q1 REF3440-Q1 REF3450-Q1

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Copyright © 2018, Texas Instruments Incorporated

Feature Description (continued)

9.3.3 Load Current

are protected from short circuits by limiting the output short-circuit current to 18 mA. The device temperature

increases according to Equation 4:

where

•

•

•

•

(4)

The REF34xx-Q1 maximum junction temperature must not exceed the absolute maximum rating of 150°C.

9.4 Device Functional Modes

9.4.1

EN Pin

When the EN pin of the REF34xx-Q1 is pulled high, the device is in active mode. The device must be in active

mode for normal operation. The REF34xx-Q1 can be placed in a low-power mode by pulling the ENABLE pin

low. When in shutdown mode, the output of the device becomes high impedance and the quiescent current of

the device reduces to 2 µA in shutdown mode. The EN pin must not be pulled higher than VIN supply voltage.

See the Thermal Information for logic high and logic low voltage levels.