VNH5050A-E STMicroelectronics, VNH5050A-E Datasheet - Page 25

• Manufacturer Part Number: VNH5050A-E
• Description: Motor / Motion / Ignition Controllers & Drivers Automotive H-Bridge 50mOhm 30A 41V VCC
• Manufacturer: STMicroelectronics

Specifications of VNH5050A-E

• Product Category: Motor / Motion / Ignition Controllers & Drivers
• Rohs: yes

VNH5050A-E
4.1.1
4.1.2
Figure 16. Chipset configuration
Figure 17. Auto and mutual R
Thermal calculation in clockwise and anti-clockwise operation in
steady-state mode
Table 18.
Thermal resistances definition (values according to the PCB heatsink
area)
R
HS
R
OFF ON
HS
ON OFF OFF ON
thHS
thLS
B
A
in ON state)
HS
= R
= R
B
thHSA
thLSA
80
70
60
50
40
30
20
10
0
LS
ON OFF
condition
Thermal calculation in clockwise and anti-clockwise operation in steady-
state mode
0
A
= R
= R
LS
thLSB
thHSB
B
P
x R
P
x R
dHSA
dHSB
= Low Side Chip Thermal Resistance Junction to Ambient
2
= High Side Chip Thermal Resistance Junction to Ambient (HS
thHSLS
thHSLS
x R
x R
cm
Doc ID 16009 Rev 10
T
LOW SIDE
jHSAB
2
thHS
thHS
+ T
+ T
CHIP A
of Cu Area (refer to PCB layout)
thj-amb
LS
amb
amb
+ P
+ P
4
A
HIGH SIDE
dLSB
dLSA
vs PCB copper area in open box free air
CHIP
HS
AB
P
P
P
P
dHSA
dLSB
dHSB
dLSA
LOW SIDE
6
CHIP B
x R
x R
LS
x R
x R
T
B
thLSLS
thLS
thHSLS
thHSLS
jLSA
+ T
Package and PCB thermal data
8
+ T
+
+
amb
amb
P
x R
P
x R
RthA
RthB = RthC
RthAB = RthAC
RthBC
dHSA
dHSB
10
thLS
thLSLS
x R
x R
+ T
T
thHSLS
thHSLS
+ T
amb
jLSB
amb
12
+ P
+ P
dLSB
dLSA
25/33
A
or