IRS20954STRPBF International Rectifier, IRS20954STRPBF Datasheet - Page 22

• Manufacturer Part Number: IRS20954STRPBF
• Description: IC DVR DGTL AUDIO PROT 16-SOIC
• Manufacturer: International Rectifier
• Type: MOSFET Driverr

Specifications of IRS20954STRPBF

• Applications: Amplifiers, Receivers
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Then, total dissipation Pd is given by;
Estimated Tj from the thermal resistance between ambient and junction temperature, Rth
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T
P
d
j
=
=
=
P
P
Rth
MID
HIGH
(
I
JA
QBS
Where
P
P
R
R
R
Qg is total gate charge of high-side MOSFET.
+
⋅
LDD
HO
=
O
g(int)
g
P
P
⋅
is external gate resistance.
LOW
d
V
is equivalent output impedance of HO, typically 10 Ω for the IRS20954.
P
is dissipation from gate drive stage to LO.
+
LDD
BS
is dissipation from internal logic circuitry.
is internal gate resistance of high-side MOSFET.
T
+
)
A
+
+
P
<
⎛
⎜
⎜
⎝
HIGH
P
V
150
HO
BS
⋅
Q
°
C
g
⋅
f
SW
Not recommended for new designs.
⋅
R
O
+
Please use IRS20957SPBF.
R
R
g
O
+
R
g
(int)
⎞
⎟
⎟
⎠
JA
;
IRS20954SPBF
22