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2004 May 05 8
Philips Semiconductors Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
TDA8928J
12 DC CHARACTERISTICS
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 − 510mA
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 − 2V
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 − 2V
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 µA
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
05− V
V
EN(hys)
hysteresis voltage − 4 − V
I
I(EN)
input current −−300 µA
Switching-on input (pin POWERUP)
V
POWERUP
operating voltage referenced to V
SS
5 − 12 V
I
I(POWERUP)
input current V
POWERUP
=12V − 100 170 µA
Temperature protection
T
diag
temperature activating diagnostic V
DIAG
=V
DIAG(LOW)
150 −−°C
T
hys
hysteresis on temperature
diagnostic
V
DIAG
=V
DIAG(LOW)
− 20 −°C
Current protection
I
O(ocpl)
overcurrent protection level − 2.1 − A