VNQ810M datasheet(17/21 Pages) STMICROELECTRONICS

Part #	VNQ810M

Description	QUAD CHANNEL HIGH SIDE DRIVER

PDF	21 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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17 / 21 page

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VNQ810M

Thermal fitting model of a four channels HSD

in SO-28

Pulse calculation formula

Thermal Parameter

Area/island (cm2)

0.5

R1=R7=R13=R15 (°C/W)

0.35

R2=R8=R14=R16 (°C/W)

1.8

R3=R9 (°C/W)

4.5

R4=R10 (°C/W)

R5=R11 (°C/W)

R6=R12 (°C/W)

C1=C7=C13=C15 (W.s/°C)

0.0001

C2=C8=C14=C16 (W.s/°C)

7.00E-04

C3=C9 (W.s/°C)

6.00E-03

C4=C10 (W.s/°C)

0.2

C5=C11 (W.s/°C)

1.5

C6=C12 (W.s/°C)

R17=R18 (°C/W)

150

δ Z

THtp 1

–

()

⋅

where

p T

⁄

SO-28 Thermal Impedance Junction Ambient Single Pulse

0.01

0.1

100

0.0001

0.001

0.01

0.1

100

1000

time(s)

Zth(°C/W)

6 cm ^2/is lan d

3 cm ^2/is land

0,5 cm ^2/is land

One channel ON

Two channels

ON on same chip

Pd1

Pd2

R14

C13

C14

R13

Tj_1

Tj_2

T_amb

Pd3

R10

C10

R12

R11

C11

C12

Pd4

R16

C15

C16

R15

Tj_3

Tj_4

R17

R18

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