TDA1555Q 查看數據表（PDF） - Philips Electronics
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TDA1555Q
Philips Electronics
TDA1555Q Datasheet PDF : 11 Pages
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Philips Semiconductors
4 x 11 W single-ended or 2 x 22 W power
amplifier with distortion detector
Product specification
TDA1555Q
PINNING
1 NINV1
2 INV1
3 GND
4 RR
5 VP1
6 OUT1
7 GND1
8 OUT2
non-inverting input 1
inverting input 1
ground (signal)
supply voltage ripple rejection
positive supply voltage 1
output 1
power ground 1 (substrate)
output 2
9 n.c.
10 OUT3
11 GND2
12 OUT4
13 VP2
14 M/SS
15 DD
16 INV2
17 NINV2
not connected
output 3
power ground 2 (substrate)
output 4
positive supply voltage 2
mute/stand-by switch
distortion detector
inverting input 2
non-inverting input 2
FUNCTIONAL DESCRIPTION
The TDA1555Q contains four identical amplifiers with differential input stages (two inverting and two non-inverting) and
can be used for single-ended or bridge applications. The gain of each amplifier is fixed at 20 dB (26 dB in BTL). Special
features of this device are:
Mute/stand-by switch
• low stand-by current (< 100 µA)
• low mute/stand-by switching current (low cost supply switch)
• mute facility
Distortion detector
• At onset of clipping of one or more channels the distortion detector (pin 15) becomes active. This information can be
used to drive a sound processor or DC volume control to decrease the input signal and so limit distortion.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
PARAMETER
Supply voltage
operating
non-operating
load dump protected
Non-repetitive peak output current
Repetitive peak output current
Storage temperature range
Junction temperature
AC and DC short-circuit-safe voltage
Energy handling capability at outputs
Reverse polarity
Total power dissipation
CONDITIONS
during 50 ms;
tr ≥ 2.5 ms
VP = 0 V
see Fig.2
SYMBOL MIN.
VP
−
VP
−
VP
−
IOSM
−
IORM
−
Tstg
−55
Tj
−
VPSC
−
−
VPR
−
Ptot
−
MAX. UNIT
18
V
30
V
45
V
6
A
4
A
+ 150 °C
150
°C
18
V
200
mJ
6
V
60
W
May 1992
4
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