TDF8554J NXP Semiconductors, TDF8554J Datasheet - Page 5
TDF8554J
Manufacturer Part Number
TDF8554J
Description
The TDF8554J is one of a new generation of complementary quad Bridge-Tied Load(BTL) audio power amplifiers with full I²C-bus controlled diagnostics, multiple voltageregulator and two power switches intended for automotive applications
Manufacturer
NXP Semiconductors
Datasheet
1.TDF8554J.pdf
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5. Block diagram
TDF8554J
Product data sheet
Fig 1.
Block diagram
RESCAP
BUCAP
SDA
SCL
STB
IN1
IN2
IN3
IN4
V
P
28
36
35
2
4
22
11
12
15
14
V P
BACKUP
SWITCH
STANDBY/ MUTE
SVR
10
All information provided in this document is subject to legal disclaimers.
TDA8554J
ENABLE
40 μs
LOGIC
Rev. 1 — 31 August 2011
SGND
13
MUTE
MUTE
MUTE
MUTE
V
INTERFACE
reg2
I
2
REFERENCE
C-BUS
VOLTAGE
ACGND
4 45 W power amplifier with multiple voltage regulator
16
16 dB
26 dB
16 dB
26 dB
16 dB
26 dB
16 dB
26 dB
PGND1
TEMPERATURE & LOAD
CLIP DETECT/ DIAGNOSTIC
DUMP PROTECTION
8
REGULATOR 2
REGULATOR 1
REGULATOR 3
REGULATOR 4
REGULATOR 5
PGND2/TAB
SWITCH 1
SWITCH 2
PROTECTION VOLTAGE
AMPLIFIER
TEMPERATURE &
PROTECTION/
PROTECTION/
PROTECTION/
PROTECTION/
DIAGNOSTIC
DIAGNOSTIC
DIAGNOSTIC
DIAGNOSTIC
1
REGULATOR
LOAD DUMP
PGND3
18
PGND4
24
37
30
31
33
34
29
27
26
32
20
25
17
19
21
23
6
9
7
5
3
aaa-000380
REG2
REG1
REG3
REG4
REG5
SW1
SW2
RST
GND
V
V
DIAG
OUT1+
OUT1-
OUT2+
OUT2-
OUT3+
OUT3-
OUT4+
OUT4-
P1
P2
TDF8554J
© NXP B.V. 2011. All rights reserved.
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