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VNH5019ATR-E Datasheet(PDF) 27 Page - STMicroelectronics

Part # VNH5019ATR-E
Description  Automotive fully integrated H-bridge motor driver
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VNH5019ATR-E Datasheet(HTML) 27 Page - STMicroelectronics

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VNH5019A-E
Package and PCB thermal data
Doc ID 15701 Rev 9
27/37
3.1.1
Thermal calculation in clockwise and anti-clockwise operation in
steady-state mode
3.1.2
Thermal calculation in transient mode
Ths= Pdhs • Zhs + Zhsls • (PdlsA + PdlsB) + Tamb
TlsA= PdlsA • Zls + Pdhs • Zhsls + PdlsB • Zhsls + Tamb
TlsB= PdlsB • Zls + Pdhs • Zhsls + PdlsA • Zhsls + Tamb
Figure 19.
Chipset configuration
Equation 1: pulse calculation formula
Table 17.
Thermal calculation in clockwise and anti-clockwise operation in steady-state mode
Chip 1
Chip 2 Chip 3
Tjchip1
Tjchip2
Tjchip3
ON
OFF
ON
Pdchip1 • RthA + Pdchip3 •
RthAC + Tamb
Pdchip1 • RthAB + Pdchip3 •
RthBC + Tamb
Pdchip1 • RthAC + Pdchip3 •
RthC + Tamb
ON
ON
OFF
Pdchip1 • RthA + Pdchip2 •
RthAB + Tamb
Pdchip1 • RthAB + Pdchip2 • RthB
+ Tamb
Pdchip1 • RthAC + Pdchip2 •
RthBC + Tamb
ON
OFF
OFF
Pdchip1 • RthA+ Tamb
Pdchip1 • RthAB + Tamb
Pdchip1 • RthAC + Tamb
ON
ON
ON
Pdchip1 • RthA + (Pdchip2 +
Pdchip3) • RthAB + Tamb
Pdchip2 • RthB + Pdchip1 •
RthAB + Pdchip3 • RthBC + Tamb
Pdchip1 • RthAB + Pdchip2 •
RthBC + Pdchip3 • RthC + Tamb
CHIP 1
Zls
CHIP 2
CHIP 3
Zls
Zls
Zhsls
Zhsls
Zlsls
Z
TH
δ
R
TH δ
Z
THtp
1
δ
–
()
+
⋅
=
where
δ
t
p
T
⁄
=



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