ZHCSO13A june 2021 – march 2023 INA254
PRODUCTION DATA
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
DNC | 4, 9, 16, 21 | — | Do not connect this pin to any potential; leave this pin floating |
GND | 10 | Ground | Device ground connection |
IN+ | 17 | Analog input | Positive input to internal amplifier. Connect to SH+ or external filter network. |
IN– | 8 | Analog input | Negative input to internal amplifier. Connect to SH– or external filter network. |
IS+ | 2, 3, 22, 23, 25 | Analog input | Positive connection to internal shunt resistor. Connect to supply for high-side sensing or load ground for low-side sensing. |
IS– | 5, 6, 19, 20, 26 | Analog input | Negative connection to internal shunt resistor. Connect to load for high-side sensing or system ground for low-side sensing. |
NC |
1, 24 |
— | No internal connection. Can be left floating, connected to ground or supply. Connecting to IS+ simplifies high current connections to the shunt. |
OUT | 14 | Analog output | Current sense amplifier output. |
REF1 | 13 | Analog input | Reference voltage 1. Connect to any voltage between 0 V and VS to support bidirectional or unidirectional operation. |
REF2 | 12 | Analog input | Reference voltage 2. Connect to any voltage between 0 V and VS to support bidirectional or unidirectional operation. |
RES | 15 | — | Reserved pin. Connect to GND. |
SH+ | 18 | Analog output | Internal shunt positive sense connection. Connect to IN+ or external filter network. |
SH– | 7 | Analog output | Internal shunt negative sense connection. Connect to IN– or external filter network. |
VS | 11 | Power | Device power supply connection, 2.7 V to 5.5 V. |