参数资料
型号: TDA8933BTW
厂商: NXP SEMICONDUCTORS
元件分类: 音频/视频放大
英文描述: Class D Audio Amplifier
中文描述: 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO32
封装: 6.10 MM, 0.65 MM PITCH, PLASTIC, SOT-249-1, HTSSOP-32
文件页数: 11/42页
文件大小: 245K
代理商: TDA8933BTW
TDA8933B_1
NXP B.V. 2008. All rights reserved.
Preliminary data sheet
Rev. 01 — 23 October 2008
19 of 42
NXP Semiconductors
TDA8933B
Class D audio amplier
[1]
Measured with respect to pin CGND.
[2]
Measured with respect to pin VSSD(HW).
13. Dynamic characteristics
VP(th)(ubp)l
low unbalance
protection threshold
supply voltage
VP = 22 V;
VHVPREF =11V
-
18
V
VP(th)(ubp)h
high unbalance
protection threshold
supply voltage
VP = 22 V;
VHVPREF =11V
29
-
V
Current protections
IO(ocp)
overcurrent protection
output current
current limiting
2.0
2.5
-
A
Temperature protection
Tact(th_prot)
thermal protection
activation temperature
155
-
160
°C
Tact(th_fold)
thermal foldback
activation temperature
140
-
150
°C
Oscillator reference: pin OSCIO[2]
VIH
HIGH-level input
voltage
4.0
-
5.0
V
VIL
LOW-level input
voltage
0
-
0.8
V
VOH
HIGH-level output
voltage
4.0
-
5.0
V
VOL
LOW-level output
voltage
0
-
0.8
V
Nslave(max)
maximum number of
slaves
driven by one master
12
-
Table 10.
Characteristics …continued
VP = 25 V, fosc = 320 kHz and Tamb = 25 °C; unless specied otherwise.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 11.
Switching characteristics
VP = 25 V; Tamb = 25 °C; unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Internal oscillator
fosc
oscillator frequency
Rosc = 39 k
-
320
-
kHz
range
300
-
500
kHz
Timing PWM output: pins OUT1 and OUT2
tr
rise time
IO = 0 A
-
10
-
ns
tf
fall time
IO = 0 A
-
10
-
ns
tw(min)
minimum pulse width
IO = 0 A
-
80
-
ns
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