TDF8553J NXP Semiconductors, TDF8553J Datasheet - Page 2

• Manufacturer Part Number: TDF8553J
• Description: I2C-bus controlled 4 X 50 Watt power amplifier and multiple voltage regulator
• Manufacturer: NXP Semiconductors

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NXP Semiconductors
3. Applications
4. Quick reference data
Table 1.
TDF8553J_1
Objective data sheet
Symbol Parameter
Amplifiers
V
I
P
THD
V
q(tot)
P(oper)
o(max)
n(o)
operating supply voltage R
total quiescent current
maximum output power
total harmonic distortion P
output noise voltage
Quick reference data
I
I
I
Voltage regulators
Protection
Boost amplifier and voltage regulator for car radios and CD/MD players
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
I
Good stability for any regulator with almost any output capacitor value
Six voltage regulators (microcontroller, display, audio processor, tuner, bus,
mechanical digital and drive)
Selectable output voltages for regulators 1, 4 and 5
Low dropout voltage PNP output stages
High supply voltage ripple rejection
Low noise for all regulators
Two power switches (antenna switch and amplifier switch)
Standby regulators 2 and 6 (microcontroller and bus supply) operational during
load dump and thermal shut-down
Low standby quiescent current (only regulators 2 and 6 operational)
Second supply pin for connecting optional external DC-to-DC converter to reduce
internal dissipation
Backup functionality for regulator 2
If connection to the battery voltage is reversed, all regulator voltages will be zero
Able to withstand output voltages up to 18 V (supply line may be short-circuited)
Thermal protection to avoid thermal breakdown
Load-dump protection
Regulator outputs protected from DC short-circuit to ground or to supply voltage
All regulators protected by foldback current limiting
Power switches protected from loss-of-ground and surge conditions
2
C-bus control
Conditions
no load
R
R
R
filter 20 Hz to 22 kHz; R
o
L
L
L
L
line driver mode
amplifier mode
= 1 W to 12 W; f = 1 kHz; R
= 4
= 4 ; V
= 4 ; V
= 2 ; V
P
P
P
Rev. 01 — 3 December 2008
= 14.4 V; V
= 15.2 V; V
= 14.4 V; V
4
50 Watt power amplifier and multiple voltage regulator
S
IN
IN
IN
= 600
= 2 V RMS square wave
= 2 V RMS square wave
= 2 V RMS square wave
L
= 4
Min
8
-
44
49
83
-
-
-
TDF8553J
Typ
14.4
280
46
52
87
0.01
25
50
© NXP B.V. 2008. All rights reserved.
Max Unit
18
400 mA
-
-
-
0.1
35
70
2 of 47
V
W
W
W
%
V
V