SLVSEC9C September 2019 – February 2020 DRV8904-Q1 , DRV8906-Q1 , DRV8908-Q1 , DRV8910-Q1 , DRV8912-Q1
PRODUCTION DATA.
Thermal analysis in this section is focused for the 2-layer and 4-layer PCB with two different copper thickness (1-oz and 2-oz) and six different copper areas (1-cm2, 2-cm2, 4-cm2, 8-cm2, 16-cm2 and 32-cm2).
Figure 148 and Figure 149 shows the top-layer and bottom-layer which is applicable for both 2/4-layer PCB. Figure 150 and Figure 151 shows the mid-layer-1 and mid-layer-2 of a 4-layer PCB. The top-layer, mid-layer-1 and bottom-layer of the PCB is filled with ground plane, whereas, the mid-layer-2 is filled with power plane.
The thickness of copper for different PCB layers in different PCB types is summarized in Table 94. The PCB dimension (A) for different PCB copper area is summarized in Table 95.
PCB Type | Copper Thickness | Top Layer | Bottom Layer | Mid-Layer 1 | Mid-Layer 2 |
---|---|---|---|---|---|
2-Layer | 1-oz PCB | 1-oz | 1-oz | N/A | |
2-oz PCB | 2-oz | 2-oz | |||
4-Layer | 1-oz PCB | 1-oz | 1-oz | 1-oz | 1-oz |
2-oz PCB | 2-oz | 2-oz | 1-oz | 1-oz |
COPPER AREA (cm2) | DIMENSION (A) (mm) |
---|---|
1 cm2 | 13.31 mm |
2 cm2 | 17.64 mm |
4 cm2 | 23.62 mm |
8 cm2 | 31.98 mm |
16 cm2 | 43.76 mm |
32 cm2 | 60.36 mm |