參數(shù)資料
型號(hào)： 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)： 32/55頁
文件大?。?/td> 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
38 of 55
NXP Semiconductors
TDF8555J
4
45 W power amplifier with multiple voltage regulator
Table 26.
Voltage regulator 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.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Supply
VP
supply voltage
regulators 1, 3, 4 and 5 on;
switches 1 and 2 on
10.0
14.4
18
V
standby regulator 2 in regulation
5.0
-
50
V
standby regulator 6 in regulation
6.0
-
50
V
Vth(dis)
disable threshold voltage
regulator 1, 3, 4 and 5 on; switches
1 and 2 on
18.1
22
-
V
VDCDC
DC-to-DC converter voltage
4.75
5.0
VP
V
Iq(tot)
total quiescent current
standby mode; VP = 14.4 V
180
250
A
Regulator 1 audio supply: pin REG1; IO = 5 mA unless otherwise specified
VO(reg)
regulator output voltage
0.5 mA
I
O 400 mA;
10 V < VP <18 V
IB2[D3:D2] = 01
7.9
8.3
8.7
V
IB2[D3:D2] = 10
8.1
8.6
9.1
V
IB2[D3:D2] = 11
4.75
5.0
5.25
V
SVRR
supply voltage rejection ratio
fripple =120 Hz; Vripple = 2 V (p-p)
50
60
-
dB
Vdo
dropout voltage
VP = 7 V; IB2[D3:D2] = 01
IO = 300 mA
-
0.5
0.8
V
IO = 400 mA
-
0.7
1.2
V
IO
output current
VO 4V
[4] 400
700
-
mA
IOS
output short-circuit current
RL 0.5
[5] 100
200
-
mA
Line regulation
V
O
output voltage variation
10 V
V
P 18 V
-
50
mV
Load regulation
V
O
output voltage variation
5 mA
I
O 400 mA
-
100
mV
Regulator 2 microprocessor supply: pin REG2; IO = 5 mA unless otherwise specified
VO(reg)
regulator output voltage
0.5 mA
I
O 350 mA;
10 V
V
P 18 V
3.1
3.3
3.5
V
SVRR
supply voltage rejection ratio
fripple =120 Hz; Vripple = 2 V (p-p)
40
50
-
dB
Vdo
dropout voltage
VBUCAP = 4.75 V; IO = 350 mA
1.45
2.0
V
IO
output current
VO 2.8 V
[4] 350
1000
-
mA
IOS
output short-circuit current
RL 0.5
[5] 160
300
-
mA
Line regulation
V
O
output voltage variation
10 V
V
P 18 V
-
50
mV
Load regulation
V
O
output voltage variation
0.5 mA
I
O 350 mA
-
100
mV
Regulator 3 mechanical digital supply: pin REG3; IO = 5 mA unless otherwise specified
VO(reg)
regulator output voltage
10 V
V
P 18 V;
0.5 mA
I
O 525 mA; 5 V VDCDC
18 V
[8] 3.1
3.3
3.5
V
SVRR
supply voltage rejection ratio
fripple =120 Hz; Vripple = 2 V (p-p)
50
65
-
dB
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