VNQ830 datasheet(17/20 Pages) STMICROELECTRONICS

部件名	VNQ830

功能描述	QUAD CHANNEL HIGH SIDE DRIVER

PDF	20 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

17 / 20 page

17/20

VNQ830

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)

0.15

R2=R8=R14=R16 (°C/W)

0.8

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)

0.0006

C2=C8=C14=C16 (W.s/°C)

2.10E-03

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

THt p 1

–

()

⋅

where

p T

⁄

SO-28 Thermal Impedance Junction Ambient Single Pulse

0.1

100

1000

0.0001

0.001

0.01

0.1

100

1000

Time (s)

ZT H (°C/W)

One channel ON

Two channels ON

on same chip

0.5 cm2

6 cm2

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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