SCES957A December 2023 – April 2024 TXV0106
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
This device has 2 features (VCC Isolation and VCC Disconnect) which helps in preventing current backflow in case the device is powered down unexpectedly. VCC Isolation: when one of the supplies is kept at (or goes to) zero during normal operation, no current will be consumed by the supply that is maintained. This scenario forces all I/Os to be High-Z. VCC Disconnect: when one of the supplies is left floating (disconnect) after ramping up, the I/Os are forced into High-Z without consuming any current from the maintained supply. In both cases, the I/Os will enter a high-impedance state when either supply (VCCA or VCCB) is <100 mV or left floating, while the other supply is still connected to the device. The following figure shows more information.
The maximum supply current is specified by ICCx, while VCCx is floating, in the Electrical Characteristics. The maximum leakage into or out of any input or output pin on the device is specified by Ioff(float) in the Electrical Characteristics.