ZHCSPG7 February 2022 AMC1306M25-Q1
PRODUCTION DATA
In Figure 8-1, the high-side power supply (AVDD) for the AMC1306M25-Q1 is derived from the floating power supply of the upper gate driver, using a resistor (R4) and a Zener diode (D1).
The floating ground reference (AGND) is derived from the end of the shunt resistor that is connected to the negative input of the AMC1306M25-Q1 (INN). If a four-pin shunt is used, the inputs of the AMC1306M25-Q1 are connected to the inner leads and AGND is connected to the outer lead on the INN-side of the shunt. To minimize offset and improve accuracy, route the ground connection as a separate trace that connects directly to the shunt resistor rather than shorting AGND to INN directly at the input to the device. See the Section 10 section for more details.