2004 May 05 8
Philips Semiconductors Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier TDA8928J12 DC CHARACTERISTICS
VP=±12.5 V; Tamb=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
VPsupply voltage ±7.5 ±12.5 ±30 V
Iq(tot) total quiescent current no load connected −25 45 mA
outputs floating −510mA
Internal stabilizer logic supply (pin STAB)
VO(STAB) stabilizer output voltage referenced to VSS 11.7 13 14.3 V
Switch inputs (pins SW1 and SW2)
VIH HIGH-level input voltage referenced to VSS 10 −15 V
VIL LOW-level input voltage referenced to VSS 0−2V
Control outputs (pins REL1 and REL2)
VOH HIGH-level output voltage referenced to VSS 10 −15 V
VOL LOW-level output voltage referenced to VSS 0−2V
Diagnostic output (pin DIAG, open-drain)
VOL LOW-level output voltage IDIAG= 1 mA; note 1 0 −1.0 V
ILO output leakage current no error condition −−50 µA
Enable inputs (pins EN1 and EN2)
VIH HIGH-level input voltage referenced to VSS 9−15 V
VIL LOW-level input voltage referenced to VSS 05−V
VEN(hys) hysteresis voltage −4−V
II(EN) input current −−300 µA
Switching-on input (pin POWERUP)
VPOWERUP operating voltage referenced to VSS 5−12 V
II(POWERUP) input current VPOWERUP=12V −100 170 µA
Temperature protection
Tdiag temperature activating diagnostic VDIAG =V
DIAG(LOW) 150 −−°C
Thys hysteresis on temperature
diagnostic VDIAG=V
DIAG(LOW) −20 −°C
Current protection
IO(ocpl) overcurrent protection level −2.1 −A