VND920-E STMicroelectronics, VND920-E Datasheet - Page 14

• Manufacturer Part Number: VND920-E
• Description: IC DRIVER HIGH SIDE 2CH 28-SOIC
• Manufacturer: STMicroelectronics
• Type: High Sider

Specifications of VND920-E

• Input Type: Non-Inverting
• Number Of Outputs: 2
• On-state Resistance: 16 mOhm
• Current - Peak Output: 45A
• Voltage - Supply: 5.5 V ~ 36 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -

VND920-E
SO-28 Double Island Thermal Data
Figure 21. Double Island PC Board
Table 14. Thermal Calculation According To The Pcb Heatsink Area
Figure 22. R
14/19
Chip 1
OFF
ON
ON
ON
R
R
R
thA
thB
thC
Layout condition of R
Cu thickness=35 m, Copper areas: 0.5cm
= Thermal resistance Junction to Ambient with both chips ON and P
= Thermal resistance Junction to Ambient with one chip ON
= Mutual thermal resistance
Chip 2
RTHj_am b
OFF
ON
ON
ON
70
60
50
40
30
20
10
thj-amb
(°C/W)
0
R
R
R
(R
Vs. PCB Copper Area In Open Box Free Air Condition
thA
thC
thB
thA
x P
x (P
x P
x P
th
dchip1
dchip2
dchip1
dchip1
1
and Z
+ T
+ T
) + R
PCB Cu heatsink area (cm ^2)/island
+ P
th
T
amb
measurements (PCB FR4 area= 58mm x 58mm, PCB thickness=2mm,
amb
jchip1
dchip2
thC
2
x P
) + T
dchip2
amb
2
, 3cm
+ T
3
2
amb
, 6cm
R
R
R
(R
2
).
thC
thA
thB
thA
4
x P
x (P
x P
x P
dchip2
dchip1
dchip2
dchip1
+ T
) + R
+ T
5
+ P
T
jchip2
amb
amb
dchip2
thC
x P
) + T
dchip1
dchip1
6
amb
R
R
R
thA
thB
thC
=P
+ T
dchip2
amb
7
P
P
dchip1
dchip1
Note
=P
P
dchip2
dchip2