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IRS20954S PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 IRS20954S
部品説明 Protected Digital Audio Driver
メーカ International Rectifier
ロゴ International Rectifier ロゴ 



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IRS20954S Datasheet, IRS20954S PDF,ピン配置, 機能
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Data Sheet No. PD60276
IRS20954S
Protected Digital Audio Driver
Features
Floating PWM input enables easy half bridge
implementation
Integrated programmable bi-directional over-current
protection with self-reset function
Programmable compensated preset deadtime for
improved THD performances
High noise immunity
• ±100 V high voltage ratings deliver up to 500 W output
power
3.3 V / 5 V logic compatible input
Operates up to 800 kHz
RoHS compliant
Product Summary
VOFFSET (max)
Gate driver
Io+
Io -
Selectable Deadtime
Propagation delay
OC protection delay
± 100 V
1.0 A
1.2 A
15 ns, 25 ns,
35 ns, 45 ns
90 ns
1 µs (max)
Description
The IRS20954 is a high voltage, high speed MOSFET driver
with floating PWM input, specially designed for Class D audio
amplifier applications. The bi-directional current sensing
requires no external shunt resistors. It can capture over-current
conditions at either positive or negative load current direction. A
built-in control block provides secure protection sequence
against over-current conditions, including a programmable reset
timer. The internal deadtime generation block provides
accurate gate switch timing and enables optimum deadtime
settings for better audio performances, such as THD and audio
noise floor.
Package
16-Lead SOIC (narrow body)
Typical Connection
PWM
(Please refer to Lead
Assignments for correct
pin configuration. This
diagram shows
electrical connections
only)
IRS 20954 S
VDD
CSH
CSD
VB
IN HO
VSS
VS
NC
VREF
NC
VCC
OCSET
LO
DT COM
+B
Speaker
Vcc
12 V
-B
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