Philips TDA8928J Manual De Usuario
2004 May 05
8
Philips Semiconductors
Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
audio amplifier
TDA8928J
12 DC CHARACTERISTICS
V
V
P
=
±
12.5 V; T
amb
= 25
°
C; measured in test diagram of Fig.4; unless otherwise specified.
Note
1. Temperature sensor or maximum current sensor activated.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
P
supply voltage
±
7.5
±
12.5
±
30
V
I
q(tot)
total quiescent current
no load connected
−
25
45
mA
outputs floating
−
5
10
mA
Internal stabilizer logic supply (pin STAB)
V
O(STAB)
stabilizer output voltage
referenced to V
SS
11.7
13
14.3
V
Switch inputs (pins SW1 and SW2)
V
IH
HIGH-level input voltage
referenced to V
SS
10
−
15
V
V
IL
LOW-level input voltage
referenced to V
SS
0
−
2
V
Control outputs (pins REL1 and REL2)
V
OH
HIGH-level output voltage
referenced to V
SS
10
−
15
V
V
OL
LOW-level output voltage
referenced to V
SS
0
−
2
V
Diagnostic output (pin DIAG, open-drain)
V
OL
LOW-level output voltage
I
DIAG
= 1 mA; note 1
0
−
1.0
V
I
LO
output leakage current
no error condition
−
−
50
µ
A
Enable inputs (pins EN1 and EN2)
V
IH
HIGH-level input voltage
referenced to V
SS
9
−
15
V
V
IL
LOW-level input voltage
referenced to V
SS
0
5
−
V
V
EN(hys)
hysteresis voltage
−
4
−
V
I
I(EN)
input current
−
−
300
µ
A
Switching-on input (pin POWERUP)
V
POWERUP
operating voltage
referenced to V
SS
5
−
12
V
I
I(POWERUP)
input current
V
POWERUP
= 12 V
−
100
170
µ
A
Temperature protection
T
diag
temperature activating diagnostic
V
DIAG
= V
DIAG(LOW)
150
−
−
°
C
T
hys
hysteresis on temperature
diagnostic
diagnostic
V
DIAG
= V
DIAG(LOW)
−
20
−
°
C
Current protection
I
O(ocpl)
overcurrent protection level
−
2.1
−
A