TDA8595
I
2
C-bus controlled 4
45 W power amplifier
Rev. 5 — 11 June 2013
Product data sheet
1. General description
The TDA8595 is a complementary quad Bridge Tied Load (BTL) audio power amplifier
made in BCDMOS technology. It contains four independent amplifiers in BTL
configuration. Through the I
2
C-bus, diagnosis of temperature warning and clipping level is
fully programmable and the information available via two diagnostic pins is selectable.
The status of each amplifier (output offset, load or no load, short-circuit or speaker
incorrectly connected) can be read separately.
2. Features and benefits
2.1 General
Operates in legacy mode (non I
2
C-bus) and I
2
C-bus mode (3.3 V and 5 V compliant)
Three hardware-programmable I
2
C-bus addresses
Drive 4
or 2
loads
Speaker fault detection
Independent short-circuit protection per channel
Loss of ground and open V
P
safe (with 150 m series impedance and a supply
decoupling capacitor of 2200
F
maximum)
All outputs short-circuit proof to ground, supply voltage and across the load
All pins short-circuit proof to ground
Temperature-controlled gain reduction to prevent audio holes at high junction
temperatures
Low battery voltage detection
Offset detection
This part has been qualified in accordance with AEC-Q100
2.2 I
2
C-bus mode
DC load detection: open-circuit, short-circuit and load present
AC load (tweeter) detection
During start-up, can detect which load is connected so the appropriate gain can be
selected without audio pop
Independently selectable soft mute of front channels (channel 1 and channel 3) and
rear channels (channel 2 and channel 4)
Programmable gain (26 dB and 16 dB) of front channels and rear channels
Fully programmable diagnostic levels can be set:
Programmable clip detection: 2 %, 5 % or 10 %
Programmable thermal pre-warning
NXP Semiconductors
TDA8595
I
2
C-bus controlled 4
45 W power amplifier
Selectable information on the DIAG and STB pins:
The STB pin can be programmed/multiplexed with second clip detection
Clip information of each channel can be directed separately to the DIAG pin or the
STB pin
Independent enabling of thermal, clip or load fault detection (short across or to V
P
or to ground) on DIAG pin
3. Quick reference data
Table 1.
Quick reference data
Refer to test circuit (see
Figure 30)
at V
P
= V
P1
= V
P2
= 14.4 V; R
L
= 4
; f = 1 kHz; R
S
= 0
;
normal mode; unless otherwise specified. Tested at T
amb
= 25
C; guaranteed for T
amb
=
40
C to
+105
C.
Symbol
V
P
I
q
P
o
Parameter
supply voltage
quiescent current
output power
Conditions
R
L
= 4
no load
V
P
= 14.4 V
R
L
= 4
;
THD = 0.5 %
R
L
= 4
;
THD = 10 %
R
L
= 4
;
maximum
power; V
i
= 2 V (RMS)
square wave
R
L
= 2
;
maximum
power; V
i
= 2 V (RMS)
square wave
THD
V
n(o)
total harmonic
distortion
noise output
voltage
R
L
= 4
;
f = 1 kHz;
P
o
= 1 W to 12 W
filter 20 Hz to 22 kHz;
R
S
= 1 k
normal mode
line driver mode
-
-
45
22
65
29
V
V
18
23
37
20
25
40
-
-
-
W
W
W
Min
8
-
Typ
14.4
270
Max
18
400
Unit
V
mA
58
64
-
W
-
0.01
0.1
%
4. Ordering information
Table 2.
Type
number
TDA8595J
TDA8595TH
TDA8595SD
Ordering information
Package
Name
DBS27P
HSOP36
RDBS27P
Description
plastic DIL-bent-SIL (special bent) power package;
27 leads (lead length 6.8 mm)
plastic, heatsink small outline package; 36 leads;
low stand-off height
plastic rectangular-DIL-bent-SIL (reverse bent) power
package; 27 leads (row spacing 2.54 mm)
Version
SOT827-1
SOT851-2
SOT878-1
TDA8595
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 5 — 11 June 2013
2 of 51
NXP Semiconductors
TDA8595
I
2
C-bus controlled 4
45 W power amplifier
TAB 36
V
P2
35
V
P2
34
DIAG 33
OUT2− 32
PGND2 31
OUT2+ 30
STB 29
ADSEL 28
n.c. 27
SDA 26
OUT4+ 25
PGND4 24
OUT4− 23
SCL 22
V
P1
21
V
P1
20
n.c. 19
001aad138
1
2
3
4
5
6
7
8
n.c.
OUT1−
PGND1
OUT1+
SVR
IN1
IN2
n.c.
SGND
TDA8595TH
9
10 n.c.
11 IN4
12 IN3
13 ACGND
14 OUT3+
15 n.c.
16 PGND3
17 OUT3−
18 n.c.
Fig 3. Pin configuration TDA8595TH
6.2 Pin description
Table 3.
Symbol
Pin description
Pin
TDA8595J
TDA8595SD
[1]
ADSEL
STB
PGND2
OUT2
DIAG
OUT2+
V
P2
n.c.
OUT1
PGND1
OUT1+
SVR
IN1
IN2
n.c.
SGND
TDA8595
Description
TDA8595TH
28
29
31
32
33
30
34 and 35
1
2
3
4
5
6
7
8
9
I
2
C-bus address select
standby (I
2
C-bus mode) or mode pin (legacy
mode); programmable second clip indicator
power ground channel 2
negative channel 2 output
diagnostic/clip detection output
positive channel 2 output
supply voltage 2
not connected
negative channel 1 output
power ground channel 1
positive channel 1 output
half supply filter capacitor
channel 1 input
channel 2 input
not connected
signal ground
© NXP B.V. 2013. All rights reserved.
1
2
3
4
5
6
7
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8
9
10
11
12
13
-
14
All information provided in this document is subject to legal disclaimers.
Product data sheet
Rev. 5 — 11 June 2013
5 of 51
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