lx1722 Microsemi Corporation, lx1722 Datasheet - Page 5

• Manufacturer Part Number: lx1722
• Description: Class-d Stereo Power Amplifier Controller
• Manufacturer: Microsemi Corporation

Copyright © 2001
Rev. 1.2a,2004-06-10
Note 2: The LX1721 / 22CDB is guaranteed to meet performance specifications from 0° to 70°C. Specifications over the -20° to 0°C operation temperature
range are assured by design, characterization, and statistical process control.
Current Limit Comparator
Voltage Sense Threshold
Blanking Pulse Delay
Response Time
I
Latch
Consecutive Clear Pulses required to
reset I
Reference Voltage Section
Initial Accuracy
Voltage Stability
Initial Accuracy
Voltage Stability
Temperature Stability
Line Regulation
Load Regulation
Under Voltage Lockout Section
Start Threshold Voltage
UV Lockout Hysteresis
UVLO Delay To Output Enable
Supply Current
Sleep Current
Operating Current
Sleep to Output Enable
Sleep Threshold
Mute Section
Mute Threshold
Output Drivers For N-Channel MOSFETs
NFET Drivers, Low Level Voltage
NFET Drivers, High Level Voltage
Output Drives For P-Channel MOSFETs
PFET Drivers, Low Level Voltage
PFET Drivers, High Level Voltage
UM
Pulses required to Current Limit
UM
I N T E G R A T E D
counter
Parameter
(VREF)
(VREF)
(V25)
(V25)
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
E L E C T R I C A L C H A R A C T E R I S T I C S ( C O N T I N U E D )
P R O D U C T S
Symbol
V
V
V
V
OL
OH
OL
OH
Linfinity Microelectronics Division
Microsemi
Excluding blanking pulse
T
V
I
SLEEP Input = 0V, T
SLEEP Input = 2V, V
No MOSFETs connected
I
I
I
applied externally
I
applied externally
I
I
I
(applied externally)
I
(applied externally)
OUT
SINK
SINK
SOURCE
SOURCE
SINK
SINK
SOURCE
SOURCE
A
DD
= 0
= 9V to 15V
= 0 to 10mA
= 3mA
= 100mA
= 3mA
= 100mA
O
Test Conditions
C to 70
= 3mA, C
= 100mA, C
= 3mA, C
= 100mA, C
Class-D Stereo Power Amplifier Controller
O
C
AudioMAX™
N
P
= 5.2V
= 5.2V
N
P
= 5.2V
A
= 5.2V
IN
= 25
= 15V,
O
C
P
RODUCTION
Min
1.45
190
1.2
4
2
LX1721 / 1722
62,500
62,500
Typ
± 50
± 25
1.35
210
500
250
250
5.0
2.5
0.5
1.6
0.3
0.3
0.5
0.5
30
30
30
30
30
4
2
2
5
6
8
LX1721 / 1722
± 100
Max
± 50
1.75
230
100
100
100
100
1.5
1.0
1.0
1.0
1.0
11
4
2
5
‘cycles
‘cycles
Units
clkcyc
clkcyc
‘mV
‘mV
‘mV
‘mV
mV
mV
‘mA
‘mV
‘mV
‘mV
‘mV
mV
‘ns
‘ns
µA
V
V
V
V
V
V
V
Page 5