參數(shù)資料
型號: VN5770AK-E
廠商: 意法半導(dǎo)體
英文描述: Quad smart power solid state relay for complete H bridge configurations
中文描述: 四完整的智能功率H橋配置固態(tài)繼電器
文件頁數(shù): 24/31頁
文件大?。?/td> 429K
代理商: VN5770AK-E
Package and thermal data
VN5770AK-E
24/31
Table 18.
Table 20.
Table 21.
T
jHS12
T
jLS3
T
jLS4
Thermal calculations in clockwise and anti-clockwise operation in steady-
state mode
HS
1
HS
2
LS
3
LS
4
T
jHS12
T
jLS3
T
jLS4
ON
OFF
OFF
ON
P
dHS1
x
R
thHS
+ P
dLS4
x
R
thHSLS
+ T
amb
P
dHS1
x
R
thHSLS
+
P
dLS4
x
R
thLSLS
+ T
amb
P
dHS1
x
R
thHSLS
+
P
dLS4
x
R
thLS
+ T
amb
OFF
ON
ON
OFF
P
dHS2
x
R
thHS
+ P
dLS3
x
R
thHSLS
+ T
amb
P
dHS2
x
R
thHSLS
+
P
dLS3
x
R
thLS
+ T
amb
P
dHS2
x
R
thHSLS
+
P
dLS3
x
R
thLSLS
+ T
amb
Table 19.
Thermal resistances definitions
(1)
1.
values dependent on PCB heatsink area
R
thHS
= R
thHS1
= R
thHS2
High side chip thermal resistance junction to ambient
(HS
1
or HS
2
in ON state)
Low side chip thermal resistance junction to ambient
R
thLS
= R
thLS3
= R
thLS4
R
thHSLS
= R
thHS1LS4
= R
thHS2LS3
Mutual thermal resistance junction to ambient between
high side and low side chips
R
thLSLS
= R
thLS3LS4
Mutual thermal resistance junction to ambient between
low side chips
Single pulse thermal impedance definitions
(1)
High Side Chip Thermal Impedance Junction to
Ambient
1.
values dependent on PCB heatsink area
Z
thHS
Z
thLS
= Z
thLS3
= Z
thLS4
Low Side Chip Thermal Impedance Junction to
Ambient
Z
thHSLS
= Z
thHS12LS3
= Z
thHS12LS4
Mutual Thermal Impedance Junction to Ambient
between High Side and Low Side Chips
Z
thLSLS
= Z
thLS3LS4
Mutual Thermal Impedance Junction to Ambient
between Low Side Chips
Thermal calculations in transient mode
(1)
Z
thHS
x P
dHS12
+ Z
thHSLS
x (P
dLS3
+ P
dLS4
) + T
amb
Z
thHSLS
x P
dHS12
+ Z
thLS
x P
dLS3
+ Z
thLSLS
x P
dLS4
+ T
amb
Z
thHSLS
x P
dHS12
+ Z
thLSLS
x P
dLS3
+ Z
thLS
x P
dLS4
+ T
amb
1.
Calculation is valid in any dynamic operating condition. Pd values set by user.
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