TDA8920C Datasheet, PDF (13/40 Pages) NXP Semiconductors – 2 X110 W class-D power amplifier

NXP Semiconductors
TDA8920C
2 × 110 W class-D power amplifier
11. Static characteristics
Table 7. Static characteristics
V_P = ±30 V; f_osc = 345 kHz; T_amb = 25 °C; unless otherwise specified.
Symbol Parameter
Conditions
Min Typ
Supply
V_P
V_P(ovp)
V_P(uvp)
I_q(tot)
supply voltage
Operating mode
overvoltage protection supply voltage non-Operating mode;
V_DD − V_SS
undervoltage protection supply voltage V_DD − V_SS
total quiescent current
Operating mode; no load; no
filter; no RC-snubber network
connected
[1] _{±12.5 ±30}
65
-
20
-
-
50
I_stb
standby current
Mode select input; pin MODE
measured at 30 V
-
480
V_MODE
voltage on pin MODE
referenced to SGND
Standby mode
[2] ₀
-
[2][3] ₀
-
Mute mode
[2][3] _2.2
-
Operating mode
[2][3] _4.2
-
I_I
input current
Audio inputs; pins IN1M, IN1P, IN2P and IN2M
V_I = 5.5 V
-
110
V_I
input voltage
Amplifier outputs; pins OUT1 and OUT2
DC input
[2] _-
0
V_O(offset) output offset voltage
SE; Mute mode
SE; Operating mode
-
-
[4] _-
-
BTL; Mute mode
-
-
BTL; Operating mode
[4] _-
-
Stabilizer output; pin STABI
V_O(STABI) output voltage on pin STABI
Mute and Operating modes;
with respect to VSSP1
9.3 9.8
Temperature protection
T_{act(th_prot)} thermal protection activation
temperature
-
154
T_{act(th_fold)} thermal foldback activation
temperature
closed loop SE voltage gain
[5] _-
153
reduced with 6 dB
Max Unit
±32.5 V
70
V
25
V
75
mA
600 µA
6
V
0.8 V
3.0 V
6
V
150 µA
-
V
±25 mV
±150 mV
±30 mV
±210 mV
10.3 V
-
°C
-
°C
[1] The circuit is DC adjusted at V_P = ±12.5 V to ±32.5 V.
[2] With respect to SGND (0 V).
[3] The transition between Standby and Mute mode has hysteresis, while the slope of the transition between Mute and Operating mode is
determined by the time-constant of the RC network on pin MODE; see Figure 8.
[4] DC output offset voltage is gradually applied to the output during the transition between the Mute and Operating modes. The slope
caused by any DC output offset is determined by the time-constant of the RC network on pin MODE.
[5] At a junction temperature of approximately T_{act(th_fold)} − 5 °C, gain reduction commences and at a junction temperature of approximately
T_{act(th_prot)}, the amplifier switches off.
TDA8920C_1
Preliminary data sheet
Rev. 01 — 29 September 2008
© NXP B.V. 2008. All rights reserved.
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