TDA8932BT/N2,112 NXP Semiconductors, TDA8932BT/N2,112 Datasheet - Page 6

• Manufacturer Part Number: TDA8932BT/N2,112
• Description: IC AMP AUDIO 55W STER D 32SOIC
• Manufacturer: NXP Semiconductors
• Type: Class Dr

Specifications of TDA8932BT/N2,112

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Package / Case: 32-SOIC (7.5mm Width)
• Max Output Power X Channels @ Load: 55W x 1 @ 8 Ohm; 26.5W x 2 @ 4 Ohm
• Voltage - Supply: 10 V ~ 36 V, ±5 V ~ 18 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection
• Mounting Type: Surface Mount
• Product: Class-D
• Output Power: 55 W
• Available Set Gain: 36 dB
• Common Mode Rejection Ratio (min): 75 dB
• Thd Plus Noise: 0.007 %
• Operating Supply Voltage: 22 V
• Supply Current: 145 mA
• Maximum Power Dissipation: 5000 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 8 Ohms
• Dual Supply Voltage: +/- 11 V
• Input Signal Type: Differential
• Minimum Operating Temperature: - 40 C
• Output Signal Type: Differential, Single
• Supply Type: Single or Dual
• Supply Voltage (max): 36 V
• Supply Voltage (min): 10 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935283477112; TDA8932BT; TDA8932BT

NXP Semiconductors
TDA8932B_4
Product data sheet
8.2 Mode selection and interfacing
The TDA8932B supports four operating modes, selected using pins POWERUP and
ENGAGE:
Pins POWERUP and ENGAGE are referenced to pin CGND.
Table 4
ENGAGE pins.
Table 4.
[1]
If the transition between Mute mode and Operating mode is controlled via a time constant,
the start-up will be pop free since the DC output offset voltage is applied gradually to the
output between Mute mode and Operating mode. The bias current setting of the
VI-converters is related to the voltage on pin ENGAGE:
The time constant required to apply the DC output offset voltage gradually between Mute
mode and Operating mode can be generated by connecting a 470 nF decoupling
capacitor to pin ENGAGE.
Mode
Sleep
Mute
Operating
Fault
•
•
•
•
•
•
Sleep mode: with low supply current.
Mute mode: the amplifiers are switching idle (50 % duty cycle), but the audio signal at
the output is suppressed by disabling the Vl-converter input stages. The capacitors on
pins HVP1 and HVP2 have been charged to half the supply voltage (asymmetrical
supply only).
Operating mode: the amplifiers are fully operational with output signal.
Fault mode.
In case of symmetrical supply conditions the voltage applied to pins POWERUP and ENGAGE must never
exceed the supply voltage (V
Mute mode: the bias current setting of the VI-converters is zero (VI-converters
disabled)
Operating mode: the bias current is at maximum
shows the different modes as a function of the voltages on the POWERUP and
Mode selection
Pin
POWERUP
< 0.8 V
2 V to 6.0 V
2 V to 6.0 V
2 V to 6.0 V
Rev. 04 — 18 December 2008
[1]
[1]
[1]
DDA
, V
DDP1
or V
ENGAGE
< 0.8 V
< 0.8 V
2.4 V to 6.0 V
don’t care
DDP2
).
[1]
[1]
Class-D audio amplifier
DIAG
don’t care
> 2 V
> 2 V
< 0.8 V
TDA8932B
© NXP B.V. 2008. All rights reserved.
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