Datasheet

Data Sheet 9 Rev. 1.1, 2011-09-01
Smart Low-Side Power Switch
BTS3405G
General Product CharacteristicsThermal Resistance
Figure 5 Typical Transient Thermal Impedance Z
thJA
with different Duty cycles
Z
thJA
= f(t
p
) , D = tp/T, T
a
= 25 °C
Device mounted on PCB according EIA/JEDEC standard JESD51-7 (4-layer FR4, 76.2 mm × 114.3 mm with
buried planes). PCB is mounted vertical without blown air with 0.78W power dissipation generated in each
channel for single pulse on the DMOS
Z
thJA
[K/W]
10
-3
10
-2
10
-1
10
-1
10
-6
10
-5
10
-4
t
p
[s]
10
2
110
1
10
3
10
2
10
1
1
D = 0.5
D = 0.2
D = 0.1
D = 0.05
D = 0.02
D = 0.01
Single pulse
pulse_BTS3405_25 .emf