TDA8922C Datasheet, PDF (12/40 Pages) NXP Semiconductors – 2 X 75 W class-D power amplifier

NXP Semiconductors
TDA8922C
2 × 75 W class-D power amplifier
• Stereo operation: to avoid acoustical phase differences, the inputs should be in
anti-phase and the speakers should be connected in anti-phase. This configuration:
– minimizes power supply peak current
– minimizes supply pumping effects, especially at low audio frequencies
• Mono BTL operation: the inputs must be connected in anti-parallel. The output of one
channel is inverted and the speaker load is connected between the two outputs of the
TDA8922C. In practice (because of the OCP threshold) the output power can be
boosted to twice the output power that can be achieved with the single-ended
configuration.
The input configuration for a mono BTL application is illustrated in Figure 7.
IN1P
IN1M
V_in
IN2P
IN2M
OUT1
SGND
OUT2
Fig 7.
power stage
mbl466
Input configuration for mono BTL application
9. Limiting values
Table 6. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
∆V
I_ORM
voltage difference
V_DD − V_SS; Standby, Mute modes
repetitive peak output current maximum output current limiting
T_stg
storage temperature
T_amb
ambient temperature
T_j
junction temperature
V_MODE
voltage on pin MODE
referenced to SGND
V_OSC
voltage on pin OSC
V_I
input voltage
referenced to SGND
pins IN1P, IN1M, IN2P and IN2M
V_PROT
voltage on pin PROT
referenced to voltage on pin VSSD
V_ESD
electrostatic discharge voltage Human Body Model (HBM)
Charged Device Model (CDM)
I_q(tot)
total quiescent current
Operating mode; no load; no filter
no RC-snubber network connected
V_PWM(p-p) peak-to-peak PWM voltage
on pins OUT1 and OUT2
TDA8922C_1
Product data sheet
Rev. 01 — 7 September 2009
Min Max
Unit
-
65
V
6
-
A
−55 +150
°C
−40 +85
°C
-
150
°C
0
6
V
0
SGND + 6 V
−5
+5
V
0
12
V
−2000 +2000
V
−500 +500
V
-
70
mA
-
120
V
© NXP B.V. 2009. All rights reserved.
12 of 40