TDA8926 Datasheet, PDF (10/32 Pages) NXP Semiconductors – Power stage 2 x 50 W class-D audio amplifier

Philips Semiconductors
Power stage 2 × 50 W class-D audio
amplifier
Preliminary specification
TDA8926
12 DC CHARACTERISTICS
V_P = ±25 V; T_amb = 25 °C; measured in test diagram of Fig.6; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.
Supply
V_P
I_q(tot)
supply voltage
total quiescent current
note 1
no load connected
outputs floating
±15
±25
−
35
−
5
Internal stabilizer logic supply (pin STAB)
V_O(STAB)
stabilizer output voltage
Switch inputs (pins SW1 and SW2)
11
13
V_IH
HIGH-level input voltage
V_IL
LOW-level input voltage
Control outputs (pins REL1 and REL2)
referenced to V_SS
referenced to V_SS
10
−
0
−
V_OH
HIGH-level output voltage
V_OL
LOW-level output voltage
Diagnostic output (pin DIAG, open-drain)
referenced to V_SS
referenced to V_SS
10
−
0
−
V_OL
LOW-level output voltage
I_LO
output leakage current
Enable inputs (pins EN1 and EN2)
I_DIAG = 1 mA; note 2
0
−
no error condition
−
−
V_IH
HIGH-level input voltage
V_IL
LOW-level input voltage
V_EN(hys)
hysteresis voltage
I_I(EN)
input current
Switching-on input (pin POWERUP)
referenced to V_SS
referenced to V_SS
−
9
0
5
−
4
−
−
V_POWERUP
operating voltage
I_I(POWERUP)
input current
Temperature protection
referenced to V_SS
V_POWERUP = 12 V
5
−
−
100
T_diag
T_hys
temperature activating diagnostic
hysteresis on temperature
diagnostic
V_DIAG = V_DIAG(LOW)
V_DIAG = V_DIAG(LOW)
150
−
−
20
MAX.
±30
45
10
15
V_STAB
2
V_STAB
2
1.0
50
V_STAB
−
−
300
12
170
−
−
UNIT
V
mA
mA
V
V
V
V
V
V
µA
V
V
V
µA
V
µA
°C
°C
Notes
1. The circuit is DC adjusted at V_P = ±15 to ±30 V.
2. Temperature sensor or maximum current sensor activated.
2002 Oct 10
10