INA211CIRSWRG4 datasheet(18/50 Pages) TI2

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Device

V+

OUT

GND

IN-

IN+

BYPASS

Shutdown

Control

REF

Reference

Voltage

Supply

Load

SHUNT

Output

1 MW

PROTECT

10 W

PROTECT

10 W

1 MW

Figure 6-5. INA21x Transient Protection Using Dual Zener Diodes

In the event that low-power zeners do not have sufficient transient absorption capability and a higher power

transzorb must be used, the most package-efficient solution then involves using a single transzorb and back-to-

back diodes between the device inputs. The most space-efficient solutions are dual series-connected diodes in a

single SOT-523 or SOD-523 package. This method is shown in Figure 6-6. In either of these examples, the total

board area required by the INA21x with all protective components is less than that of an SO-8 package, and only

slightly greater than that of an MSOP-8 package.

Device

V+

OUT

GND

IN-

IN+

BYPASS

Shutdown

Control

REF

Reference

Voltage

Supply

Load

SHUNT

Output

1 MW

PROTECT

10 W

PROTECT

10 W

1 MW

Figure 6-6. INA21x Transient Protection Using a Single Transzorb and Input Clamps

INA210, INA211, INA212, INA213, INA214, INA215

SBOS437K – MAY 2008 – REVISED NOVEMBER 2023

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