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TDA8933B Datasheet, PDF (19/42 Pages) NXP Semiconductors – Class D audio amplifier
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NXP Semiconductors
TDA8933B
Class D audio amplifier
Table 10. Characteristics …continued
VP = 25 V, fosc = 320 kHz and Tamb = 25 °C; unless specified otherwise.
Symbol Parameter
Conditions
Min
VP(th)(ubp)l low unbalance
VP = 22 V;
-
protection threshold VHVPREF = 11 V
supply voltage
VP(th)(ubp)h high unbalance
VP = 22 V;
29
protection threshold VHVPREF = 11 V
supply voltage
Current protections
IO(ocp)
overcurrent protection current limiting
2.0
output current
Temperature protection
Tact(th_prot) thermal protection
155
activation temperature
Tact(th_fold) thermal foldback
140
activation temperature
Oscillator reference: pin OSCIO[2]
VIH
HIGH-level input
4.0
voltage
VIL
LOW-level input
0
voltage
VOH
HIGH-level output
4.0
voltage
VOL
LOW-level output
0
voltage
Nslave(max) maximum number of driven by one master
12
slaves
[1] Measured with respect to pin CGND.
[2] Measured with respect to pin VSSD(HW).
13. Dynamic characteristics
Table 11. Switching characteristics
VP = 25 V; Tamb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Internal oscillator
fosc
oscillator frequency
Rosc = 39 kΩ
range
Timing PWM output: pins OUT1 and OUT2
tr
tf
tw(min)
rise time
fall time
minimum pulse width
IO = 0 A
IO = 0 A
IO = 0 A
Typ
Max
Unit
-
18
V
-
-
V
2.5
-
A
-
160
°C
-
150
°C
-
5.0
V
-
0.8
V
-
5.0
V
-
0.8
V
-
-
-
Min
Typ
Max
Unit
-
320
-
kHz
300
-
500
kHz
-
10
-
ns
-
10
-
ns
-
80
-
ns
TDA8933B_1
Preliminary data sheet
Rev. 01 — 23 October 2008
© NXP B.V. 2008. All rights reserved.
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