Datasheet

INA21x
V+
OUT
GND
IN-
IN+
C
BYPASS
Shutdown
Control
REF
Reference
Voltage
Supply
Load
R
SHUNT
Output
1MW
R
PROTECT
10W
R
PROTECT
10W
R
3
1MW R
4
INA21x
V+
OUT
GND
IN-
IN+
C
BYPASS
Shutdown
Control
REF
Reference
Voltage
Supply
Load
R
SHUNT
Output
1MW
R
PROTECT
10W
R
PROTECT
10W
R
3
1MW R
4
INA210 , INA211 , INA212 , INA213 , INA214 , INA215
SBOS437F –MAY 2008–REVISED JUNE 2014 www.ti.com
Figure 27. INA210-INA215 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 28. In either of these examples, the total
board area required by the INA210-INA215 with all protective components is less than that of an SO-8 package,
and only slightly greater than that of an MSOP-8 package.
Figure 28. INA210-INA215 Transient Protection using a Single Transzorb and Input Clamps
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