VN5770AKPTR-E STMicroelectronics, VN5770AKPTR-E Datasheet - Page 26

• Manufacturer Part Number: VN5770AKPTR-E
• Description: Power Switch ICs - Power Distribution Quad Smart Power 280mOhm 8.5A 36VCC
• Manufacturer: STMicroelectronics

Specifications of VN5770AKPTR-E

• Product Category: Power Switch ICs - Power Distribution
• Rohs: yes

Package and thermal data
26/35
Figure 39. Auto and mutual Rthj-amb vs PCB copper area in open box free air
Table 17.
Table 18.
1. Values dependent on PCB heatsink area
R
R
R
R
OFF
HS
ON
thHS
thLS
thHSLS
thLSLS
Note:
See
1
Figure
= R
OFF
= R
HS
ON
60
50
40
30
20
10
= R
= R
0
2
Rth (˚C/W)
38. For more detailed information see
thLS3
thHS1
0
thLS3LS4
condition
Thermal calculations in clockwise and anti-clockwise operation in
steady-state mode
Thermal resistances definitions
thHS1LS4
OFF
LS
ON
= R
3
= R
thLS4
OFF
LS
thHS2
ON
= R
1
4
thHS2LS3
P
R
P
R
dHS1
dHS2
thHSLS
thHSLS
Doc ID 17772 Rev. 4
x
x
2
R
R
Cu Area (refer to PCB layout)
+ T
+ T
T
thHS
thHS
jHS12
amb
amb
High-side chip thermal resistance junction to ambient
(HS
Low-side chip thermal resistance junction to ambient
Mutual thermal resistance junction to ambient between
high-side and low-side chips
Mutual thermal resistance junction to ambient between
low-side chips
Table 17
+ P
+ P
1
dLS4
dLS3
or HS
3
and
x
x
(1)
Table
2
P
P
P
P
in ON-state)
dHS1
dLS4
dHS2
dLS3
18.
4
x
x
x
x
R
R
R
R
T
thLSLS
thLS
thHSLS
thHSLS
jLS3
+ T
5
+ T
+
+
amb
amb
RthA
RthB = RthC
RthAB = RthAC
RthBC
P
P
P
P
dHS1
dLS4
dHS2
dLS3
6
x
x
x
x
VN5770AKP-E
R
R
R
R
T
thLS
thLSLS
thHSLS
thHSLS
jLS4
7
+ T
+ T
+
+
amb
amb