Audio Driver. IRS20124PBF Datasheet

IRS20124PBF Driver. Datasheet pdf. Equivalent

Part IRS20124PBF
Description Digital Audio Driver
Feature Data Sheet No. PD60240 IRS20124(S)PbF Digital Audio Driver with Discrete Deadtime and Protection .
Manufacture International Rectifier
Datasheet
Download IRS20124PBF Datasheet



IRS20124PBF
Data Sheet No. PD60240
IRS20124(S)PbF
Digital Audio Driver with Discrete Deadtime and Protection
Features
200 V high voltage ratings deliver up to 1000 W
output power in Class D audio amplifier
applications
Integrated deadtime generation and bi-directional
over-current sensing simplify design
Programmable compensated preset deadtime for
improved THD performances over temperature
High noise immunity
Shutdown function protects devices from overload
conditions
Operates up to 1 MHz
3.3 V/5 V logic compatible input
RoHS compliant
Product Summary
VSUPPLY
200 V max.
IO+/-
1 A / 1.2 A typ.
Selectable Deadtime
15 ns, 25 ns, 35 ns, 45 ns typ.
Prop Delay Time
60 ns typ.
Bi-Directional Over-
Current Sensing
Package
Typical Application Diagram
14-Lead SOIC
IN
<20 V
OC
SD
<20 V
IN NC
OCSET 1 NC
DT/SD VB
OCSET 2 HO
OC VS
COM
NC
LO VCC
IRS20124
<200 V
www.irf.com
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IRS20124PBF
IRS20124S(PbF)
Description
The IRS20124 is a high voltage, high speed power MOSFET driver with internal deadtime and shutdown
functions specially designed for Class D audio amplifier applications.
The internal dead time generation block provides accurate gate switch timing and enables tight deadtime
settings for better THD performances.
In order to maximize other audio performance characteristics, all switching times are designed for immunity
from external disturbances such as VCC perturbation and incoming switching noise on the DT pin. Logic
inputs are compatible with LSTTL output or standard CMOS down to 3.0 V without speed degradation. The
output drivers feature high current buffers capable of sourcing 1.0 A and sinking 1.2 A. Internal delays are
optimized to achieve minimal deadtime variations. Proprietary HVIC and latch immune CMOS technologies
guarantee operation down to Vs= –4 V, providing outstanding capabilities of latch and surge immunities with
rugged monolithic construction.
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters
are absolute voltages referenced to COM. All currents are defined positive into any lead. The thermal resistance and power
dissipation ratings are measured under board mounted and still air conditions.
Symbol
VB
Vs
VHO
VCC
VLO
VIN
VOC
VOCSET1
VOCSET2
dVs/dt
PD
RthJA
TJ
TS
TL
Definition
High-side floating supply voltage
High-side floating supply voltage
High-side floating output voltage
Low-side fixed supply voltage
Low-side output voltage
Input voltage
OC pin input voltage
OCSET1 pin input voltage
OCSET2 pin input voltage
Allowable Vs voltage slew rate
Maximum power dissipation
Thermal resistance, junction to ambient
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
Min.
-0.3
VB-20
Vs-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-
-
-
-
-55
-
Max.
220
VB+0.3
VB+0.3
20
Vcc+0.3
Vcc+0.3
Vcc+0.3
Vcc+0.3
Vcc+0.3
50
1.25
100
150
150
300
Units
V
V/ns
W
°C/W
°C
www.irf.com
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