ZHCSN32B June 2019 – July 2024 TPS99001-Q1
PRODUCTION DATA
Separated ground planes are good for isolating noise from different parts of the circuit to other. However, when designing with separate ground planes, one must be careful of how the signals are routed to avoid large inductive loops. If separate ground planes are used, TI recommends the following ground connections to the TPS99001-Q1. In addition, the grounds should be connected electrically by a via or a 0Ω resistor. If a unified ground plane is used, the following can be used as a guideline for which groups of signals should be routed apart from other signals.
PIN | NAME | GROUND |
---|---|---|
13, 35 | VSS_IO | Digital |
24 | DVSS | Digital |
25, 60, 75, 99 | PBKG | Analog |
48 | VSS_DRVR | Power |
53 | DRST_PGND | Power |
56 | VSS_DRST | Power |
66 | GND_LDO | Analog |
71, 72 | VSS_TIA | Analog |
78, 100 | AVSS | Analog |
81, 84, 87, 89, 91 | VSSL_ADC | Analog |
Thermal Pad | DAP | Analog |