The TDA8933B is a high-efficiency class D amplifier with low power dissipation

TDA8933B

Manufacturer Part NumberTDA8933B
DescriptionThe TDA8933B is a high-efficiency class D amplifier with low power dissipation
ManufacturerNXP Semiconductors
TDA8933B datasheet
 
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NXP Semiconductors
Table 10.
Characteristics
…continued
V
= 25 V, f
= 320 kHz and T
P
osc
amb
Symbol
Parameter
V
low unbalance
P(th)(ubp)l
protection threshold
supply voltage
V
high unbalance
P(th)(ubp)h
protection threshold
supply voltage
Current protections
I
overcurrent protection
O(ocp)
output current
Temperature protection
T
thermal protection
act(th_prot)
activation temperature
T
thermal foldback
act(th_fold)
activation temperature
Oscillator reference: pin OSCIO
V
HIGH-level input
IH
voltage
V
LOW-level input
IL
voltage
V
HIGH-level output
OH
voltage
V
LOW-level output
OL
voltage
N
maximum number of
slave(max)
slaves
[1]
Measured with respect to pin CGND.
[2]
Measured with respect to pin V
SSD(HW)
13. Dynamic characteristics
Table 11.
Switching characteristics
V
= 25 V; T
= 25 C; unless otherwise specified.
P
amb
Symbol
Parameter
Internal oscillator
f
oscillator frequency
osc
Timing PWM output: pins OUT1 and OUT2
t
rise time
r
t
fall time
f
t
minimum pulse width
w(min)
TDA8933B_1
Preliminary data sheet
= 25 C; unless specified otherwise.
Conditions
V
= 22 V;
P
V
= 11 V
HVPREF
V
= 22 V;
P
V
= 11 V
HVPREF
current limiting
[2]
driven by one master
.
Conditions
R
= 39 k
osc
range
I
= 0 A
O
I
= 0 A
O
I
= 0 A
O
Rev. 01 — 23 October 2008
TDA8933B
Class D audio amplifier
Min
Typ
Max
-
-
18
29
-
-
2.0
2.5
-
155
-
160
140
-
150
4.0
-
5.0
0
-
0.8
4.0
-
5.0
0
-
0.8
12
-
-
Min
Typ
Max
-
320
-
300
-
500
-
10
-
-
10
-
-
80
-
© NXP B.V. 2008. All rights reserved.
Unit
V
V
A
C
C
V
V
V
V
-
Unit
kHz
kHz
ns
ns
ns
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