TDA8595 Datasheet, PDF (31/50 Pages) NXP Semiconductors – I2C-bus controlled 4 ´ 45 W power amplifier

NXP Semiconductors
TDA8595
I²C-bus controlled 4 × 45 W power amplifier
Table 17. Characteristics …continued
Refer to test circuit (see Figure 30) at V_P = V_P1 = V_P2 = 14.4 V; R_L = 4 Ω; f = 1 kHz; R_S = 0 Ω; normal mode; unless otherwise
specified. Tested at T_amb = 25 °C; guaranteed for T_amb = −40 °C to +105 °C.
Symbol
Parameter
Conditions
Min
Typ
Max Unit
f_SCL
R_ADSEL
SCL clock frequency
resistance on pin ADSEL
I²C-bus address
A[6:0] = 110 1100
-
400
-
kHz
155
-
-
kΩ
I²C-bus address
A[6:0] = 110 1101
42
51
57
kΩ
I²C-bus address
A[6:0] = 110 1111
7
10
15
kΩ
legacy mode
-
-
0.5
kΩ
Diagnostic
V_OL(DIAG)
LOW-level output voltage fault condition; I_DIAG = 1 mA
on pin DIAG
-
-
0.3
V
V_{O(offset_det)}
output voltage at offset
detection
±1.5
±1.75 ±2.2
V
THD_clip
total harmonic distortion
clip detection level
IB2[D7:D6] = 10
IB2[D7:D6] = 01
5
10
16
%
3
5
7
%
IB2[D7:D6] = 00
1
2
3
%
∆THD_clip
total harmonic distortion between IB2[D7:D6] = 10 and
clip detection level variation IB2[D7:D6] = 01
1
4
9
%
between IB2[D7:D6] = 01 and
IB2[D7:D6] = 00
1
3.5
6
%
T_j(AV)(pwarn)
pre-warning average
junction temperature
IB3[D4] = 0
IB3[D4] = 1
135
145
155
°C
112
122
132
°C
T_{j(AV)(G(−0.5dB))} average junction
V_i = 0.05 V
temperature for 0.5 dB gain
reduction
150
155
160
°C
∆T_{j(pw-G(−0.5dB))} prewarning to 0.5 dB gain
reduction junction
temperature difference
7
10
13
°C
∆T_{j(G(−0.5dB)-off)}
difference in junction
temperature between
0.5 dB gain reduction and
off
10
15
20
°C
∆G_{(th_fold)}
gain reduction of thermal all channels will switch off
foldback
-
20
-
dB
Z_th(load)
load detection threshold
impedance
I²C-bus mode
normal load detection
-
-
20
Ω
line driver load detection
100
-
800
Ω
Z_th(open)
open load detection
threshold impedance
I²C-bus mode
5000 -
-
Ω
I_{th(o)det(load)AC} AC load detection output
threshold current
I²C-bus mode
AC load bit is set
460
-
-
mA
AC load bit is not set
-
-
230
mA
TDA8595_2
Product data sheet
Rev. 02 — 21 November 2007
© NXP B.V. 2007. All rights reserved.
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