S-19311BF2A-V5T2U4 Datasheet, PDF (30/39 Pages) Seiko Instruments Inc – CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-19311 Series
Rev.1.0_02
2. 3 Board 3
76.2 mm
Figure 31
2. 4 Board 4
76.2 mm
45 mm
Pattern for heat radiation
Figure 32
2. 5 Board 5
76.2 mm
45 mm
Figure 33
30
Table 18
Item
Specification
Thermal resistance value
(θja)
Size
39°C/W
114.3 mm × 76.2 mm × t1.6 mm
Material
FR-4
Number of copper foil layer 4
1 Land pattern and wiring for testing: t0.070 mm
Copper foil layer
2 74.2 mm × 74.2 mm × t0.035 mm
3 74.2 mm × 74.2 mm × t0.035 mm
4 74.2 mm × 74.2 mm × t0.070 mm
Thermal via
Number: 4
Diameter: 0.3 mm
Table 19
Item
Specification
Thermal resistance value
(θja)
Size
37°C/W
114.3 mm × 76.2 mm × t1.6 mm
Material
FR-4
Number of copper foil layer 4
1
Pattern for heat radiation:
45 mm × 50 mm × t0.070 mm
Copper foil layer
2 74.2 mm × 74.2 mm × t0.035 mm
3 74.2 mm × 74.2 mm × t0.035 mm
Thermal via
4 74.2 mm × 74.2 mm × t0.070 mm
−
Table 20
Item
Specification
Thermal resistance value
(θja)
Size
31°C/W
114.3 mm × 76.2 mm × t1.6 mm
Material
FR-4
Number of copper foil layer 4
1
Pattern for heat radiation:
45 mm × 50 mm × t0.070 mm
Copper foil layer
2 74.2 mm × 74.2 mm × t0.035 mm
3 74.2 mm × 74.2 mm × t0.035 mm
4 74.2 mm × 74.2 mm × t0.070 mm
Thermal via
Number: 4
Diameter: 0.3 mm