TDA8928J Datasheet, PDF (8/23 Pages) NXP Semiconductors – Power stage 2 x 10 or 1 x 20 W class-D audio amplifie

Philips Semiconductors
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
Preliminary specification
TDA8928J
12 DC CHARACTERISTICS
V_P = ±12.5 V; T_amb = 25 °C; measured in test diagram of Fig.4; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.
Supply
V_P
I_q(tot)
supply voltage
total quiescent current
no load connected
outputs floating
±7.5 ±12.5
−
25
−
5
Internal stabilizer logic supply (pin STAB)
V_O(STAB)
stabilizer output voltage
referenced to V_SS
Switch inputs (pins SW1 and SW2)
V_IH
HIGH-level input voltage
referenced to V_SS
V_IL
LOW-level input voltage
referenced to V_SS
Control outputs (pins REL1 and REL2)
V_OH
HIGH-level output voltage
referenced to V_SS
V_OL
LOW-level output voltage
referenced to V_SS
Diagnostic output (pin DIAG, open-drain)
V_OL
LOW-level output voltage
I_DIAG = 1 mA; note 1
I_LO
output leakage current
no error condition
Enable inputs (pins EN1 and EN2)
V_IH
V_IL
V_EN(hys)
I_I(EN)
HIGH-level input voltage
LOW-level input voltage
hysteresis voltage
input current
referenced to V_SS
referenced to V_SS
Switching-on input (pin POWERUP)
V_POWERUP
I_I(POWERUP)
operating voltage
input current
referenced to V_SS
V_POWERUP = 12 V
Temperature protection
T_diag
T_hys
temperature activating diagnostic
hysteresis on temperature
diagnostic
V_DIAG = V_DIAG(LOW)
V_DIAG = V_DIAG(LOW)
11.7 13
10
−
0
−
10
−
0
−
0
−
−
−
9
−
0
5
−
4
−
−
5
−
−
100
150
−
−
20
Current protection
I_O(ocpl)
overcurrent protection level
−
2.1
Note
1. Temperature sensor or maximum current sensor activated.
MAX.
±30
45
10
14.3
15
2
15
2
1.0
50
15
−
−
300
12
170
−
−
−
UNIT
V
mA
mA
V
V
V
V
V
V
µA
V
V
V
µA
V
µA
°C
°C
A
2004 May 05
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