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参数资料
| 型号： | TDA7451 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 7 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封装： | FLEXIWATT-25 |
| 文件页数： | 5/9页 |
| 文件大小： | 154K |
| 代理商： | TDA7451 |
Obsolete
Product(s)
- Obsolete
Product(s)
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
DIAGNOSTIC OUTPUT
Diag On Vs
Low Vs Diag. ON Threshold
7
7.5
8
V
Diag Off Vs
Low Vs Diag. OFF Thrershold
7.6
V
Diag Hyst Vs
Low Vs Diag. Hysteresis
100
150
mV
Diag Dump
Diag. Threshold vs Overvoltage
20
21
22
V
Diag On
Drop
VREG3 Output Voltage Drop
Before Diag. Activation
IO3 = 100mA
90
200
mV
Vout On Diag
Diag. Output Voltage
Diag activated
R (Diag to VREG1)
≥ 15K
1.5
V
VO2
Output Voltage 2
IO2 = 5mA
4.85
5
5.15
V
VO2
Load Regulation 2
IO2 = 5 to 500mA
100
mV
IL02
Current Limit 2
VO2 = 0V
0.8
1
1.5
A
VO2
Dropout Voltage
IO2 = 500mA
1
1.5
V
SVR
Ripple Rejection
Vripple = 1Vpp; I02 = 100mA
f = 100Hz
f = 10KHz
60
50
dB
VO2
Line Regulation
VS = 8 to 18V, IO2 = 5mA
10
40
mV
VO3
Output Voltage 3
IO3 = 5mA
8.25
8.5
8.75
V
VO3
Load Regulation 3
IO3 = 5 to 200mA
80
mV
IL03
Current Limit 3
300
400
800
mA
VO3
Dropout Voltage
IO3 = 200mA
1
V
SVR
Ripple Rejection
Vripple = 1Vpp; I03 = 100mA
f = 100Hz
f = 10KHz
60
50
dB
VO3
Line Regulation 3
VS = 11 to 18V, IO3 = 5mA
10
40
mV
REG1
5V 150mA
REG3
8.5V 200mA
STCAP
OUT
SHORT
OUT
SHORT
EN
REG2
5V 500mA
OUT
SHORT
EN
+
-
+
-
7.5V
21V
HYST=0.1V
DUMP
Tj>170
+
-
+
-
2.8V
2.2V
AMPLIFIERS
OVERLOAD
AMPLIFIERS
CLIPPING
EN
REFERENCE
+
-
4V
HYST=0.5V
DROP SENSE
OUT
Tj>150
VCC
DIAG
D96AU504B
STCAP
REG1
RESET
REG3
CD
ST-BY
REG2
DIAGNOSTIC DIAGRAM
TDA7451
5/9
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