IRS20954STRPBF International Rectifier, IRS20954STRPBF Datasheet - Page 11

• 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

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Self Reset Protection
By simply putting a capacitor between the CSD and V
Shutdown Input
By externally discharging Ct down to below V
shutdown mode. The operation resumes when the voltage of CSD pin comes back and cross the upper threshold of
CSD, V
th1
Designing Ct
Timing capacitor Ct programs the protection resume interval timing t
or
For example, t
shutdown release, is given as:
or
Protection-resume timing t
the repetitive sequences of shutdown and resume when the load is in continuous short circuit. In most of
applications, the minimum recommended protection-resume timing t
t
C
t
C
, by its charging process.
PR
SU
t
t
=
=
= 1 .
= 7 .
t
t
1
1
0
0
SU
PR
1 .
7 .
where I
⋅
⋅
⋅
⋅
⋅
⋅
V
C
I
V
I
Not recommended for new designs.
C
CSD
CSD
DD
DD
t
PR
I
t
I
⋅
CSD
V
CSD
⋅
CSD
V
is 1.2 s with a 10 µF capacitor for V
V
DD
Please use IRS20957SPBF.
DD
DD
[F]
Figure 8: Self-Reset Protection Configuration
[F]
is charge/discharge current in CSD pin, 100 µA.
is supply voltage respect to V
[s]
[s]
PR
should be long enough to avoid over heating and failure of the MOSFET from
th2
, for example with a transistor shown in Fig. 9, the IRS20954 enters
Ct
SS
, the OCP in the IRS20954 acts as a self.
VDD
CSD
VSS
VREF
OCSET
NC
DT
IN
SS.
DD
=10.8 V. The start-up time t
CSH
VCC
COM
HO
NC
VS
LO
VB
PR
PR
given as:
is 0.1 s.
IRS20954SPBF
SU
, from power-up to
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