參數(shù)資料
型號： TDF8555J/N1
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37
封裝： PLASTIC, SOT725-1, 37 PIN
文件頁數(shù)： 27/55頁
文件大小： 534K
代理商： TDF8555J/N1
TDF8555J
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 29 August 2011
33 of 55
NXP Semiconductors
TDF8555J
4
45 W power amplifier with multiple voltage regulator
12. Characteristics
Table 25.
Amplifier characteristics
Refer to test circuit (see Figure 29) at Tamb =25 C; VP = 14.4 V; unless otherwise specified. Tested at Tamb =25 C;
guaranteed for Tj = 40 C to +150 C; functionality guaranteed for VP < 10 V unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Supply voltage behavior
VP(oper)
operating supply voltage
RL =4
6
14.4
18
V
RL =2
6
14.4
16
V
Iq
quiescent current
no load
-
260
350
mA
no load; VP = 7 V
-
190
-
mA
Ioff
off-state current
VSTB = 0.4 V
-
4
10
A
VO
output voltage
DC
amplifier on; high gain/low gain mode
6.6
7.1
7.6
V
line driver mode; IB4[D4] = 1;
IB3[D5:D6] = 1
3.0
3.4
3.8
V
VP(low)(mute)
low supply voltage mute
rising supply voltage
IB4[D6] = 0
7.0
7.7
8.1
V
IB4[D6] = 1
5.4
5.7
6.2
V
falling supply voltage
IB4[D6] = 0
6.5
7.2
7.7
V
IB4[D6] = 1
5.2
5.5
5.9
V
P(low)(mute)
low supply voltage mute
hysteresis
IB4[D6] = 0
0.1
0.5
0.8
V
IB4[D6] = 1
0.1
0.3
0.7
V
VP(ovp)pwarn
pre-warning overvoltage
protection supply voltage
rising supply voltage
15.2
16
16.9
V
falling supply voltage
14.4
15.2
16.2
V
hysteresis
-
0.8
-
V
Vth(ovp)
overvoltage protection
threshold voltage
rising supply voltage
18
20
22
V
VPOR
power-on reset voltage
falling supply voltage
-
3.1
4.5
V
VO(offset)
output offset voltage
amplifier on
75
0
+75
mV
amplifier mute
25
0
+25
mV
line driver mode
45
0
+45
mV
Mode select (pin STB) second clip detection
VSTB
voltage on pin STB
I2C-bus mode off
-
0.8
V
I2C-bus mode on; operating mode
selected
2.5
-
VP
V
ISTB
current on pin STB
0 V < VSTB <8.5 V
30
A
Start-up, shut-down and mute timing
twake
wake-up time
time after wake-up via pin STB before
first I2C-bus transmission is recognized;
-
300
500
s
ILO(SVR)
output leakage current on
pin SVR
--
5
A
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