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| TDA8933B Datasheet, PDF (18/42 Pages) NXP Semiconductors – Class D audio amplifier | |||
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NXP Semiconductors
TDA8933B
Class D audio ampliï¬er
Table 10. Characteristics â¦continued
VP = 25 V, fosc = 320 kHz and Tamb = 25 °C; unless speciï¬ed otherwise.
Symbol Parameter
Conditions
Min
Typ
Engage input: pin ENGAGE[1]
VO
output voltage
VI
input voltage
IO
output current
VI = 3 V
VIL
LOW-level input
voltage
2.4
2.8
0
-
-
50
0
-
VIH
HIGH-level input
voltage
2.4
-
Diagnostic output: pin DIAG[1]
VO
output voltage
protection activated; see
-
-
Table 6
Operating mode
2
2.5
Bias voltage for inputs: pin INREF
VO(bias)
bias output voltage
Half-supply voltage
Reference to VSSA
-
2.1
Pins HVP1 and HVP2
VO
output voltage
half-supply voltage to
charge SE capacitor
0.5VP â 0.2 V 0.5VP
IO
output current
VHVP1 = VHVP2 = VO â 1 V
-
50
Pin HVPREF
VO
output voltage
half-supply reference
voltage in Mute mode
0.5VP â 0.2 V 0.5VP
Reference voltage for internal logic: pin DREF
VO
output voltage
reference to VSSA
Ampliï¬er outputs: pins OUT1 and OUT2
4.5
4.8
VO(offset)
output offset voltage SE; with respect to HVPREF
Mute mode
-
-
Operating mode
-
-
BTL
Mute mode
-
-
Operating mode
-
-
Stabilizer output: pins STAB1, STAB2
VO
output voltage
Mute mode and
10
11
Operating mode; with
respect to pins VSSP1 and
VSSP2
Voltage protections
VP(uvp)
undervoltage
protection supply
voltage
8.0
9.5
VP(ovp)
overvoltage protection
supply voltage
36.1
38.5
Max
Unit
3.1
V
6.0
V
60
µA
0.8
V
6.0
V
0.8
V
3.3
V
-
V
0.5VP + 0.2 V V
-
mA
0.5VP + 0.2 V V
5.1
V
15
mV
100
mV
20
mV
150
mV
12
V
9.9
V
40
V
TDA8933B_1
Preliminary data sheet
Rev. 01 â 23 October 2008
© NXP B.V. 2008. All rights reserved.
18 of 42
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