VND920 STMicroelectronics, VND920 Datasheet - Page 20

• Manufacturer Part Number: VND920
• Description: IC DRIVER DUAL 36V 35A 28-SOIC
• Manufacturer: STMicroelectronics
• Type: High Sider

Specifications of VND920

• 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: Contains lead / RoHS non-compliant
• Current - Output / Channel: -
• Other names: 497-2708-5

Package and PCB thermal data
4
4.1
Note:
Table 13.
20/26
Chip 1 Chip 2
OFF
ON
ON
ON
OFF
ON
ON
ON
Package and PCB thermal data
SO-28 thermal data
Figure 21. SO-28 PC board
Layout condition of R
PCB thickness = 2 mm, Cu thickness = 35 µm, Copper areas: 0.5 cm
Thermal calculation according to the PCB heatsink area
R
R
R
thA
thB
thC
R
R
R
(R
thA
thC
thB
= Thermal resistance Junction to Ambient with both chips ON and P
= Thermal resistance Junction to Ambient with one chip ON
= Mutual thermal resistance
thA
x P
x (P
x P
x P
dchip1
dchip2
dchip1
dchip1
+ T
+ T
) + R
+ P
T
amb
amb
jchip1
dchip2
thC
th
and Z
x P
) + T
dchip2
amb
th
Doc ID 7767 Rev 5
measurements (PCB FR4 area = 58 mm x 58 mm,
+ T
amb
R
R
R
(R
thC
thA
thB
thA
x P
x P
x (P
x P
dchip2
dchip1
dchip1
dchip2
+ T
+ T
) + R
+ P
T
amb
jchip2
amb
dchip2
thC
x P
) + T
dchip1
amb
+ T
2
, 3 cm
amb
dchip1
P
P
2
, 6 cm
dchip1
dchip1
= P
Note
dchip2
= P
≠ P
VND920
2
).
dchip2
dchip2