TDA8551_T NXP Semiconductors, TDA8551_T Datasheet - Page 11

• Manufacturer Part Number: TDA8551_T
• Description: The TDA8551; TDA8551T is a one channel 1 WBridge-Tied Load (BTL) audio power amplifier capable ofdelivering 1 W output power to an 8 Ω load at THD = 10%using a 5 V power supply
• Manufacturer: NXP Semiconductors

NXP Semiconductors
1998 Feb 23
handbook, halfpage
handbook, halfpage
1 W BTL audio amplifier with digital volume
control
(1) R
(2) R
(3) R
Fig.14 Power dissipation as a function of supply
Fig.12 Volume gain as a function of volume steps.
(dB)
(W)
G v
−20
−40
−60
−80
P
1.5
0.5
20
0
1
0
L
L
L
= 4 Ω.
= 8 Ω.
= 16 Ω.
0
0
voltage.
20
2
40
4
(3)
(1)
(2)
60
V P (V)
n vol
MGM553
MGM556
80
6
11
handbook, halfpage
handbook, halfpage
THD = 10 %.
(1) R
(2) R
Fig.13 Output power as a function of supply
(1) V
(2) V
(3) V
Fig.15 Power dissipation as a function of output
(W)
(W)
P o
P
1.5
0.5
P
P
P
3
2
1
0
L
L
1
0
= 4 Ω.
= 8 Ω.
= 5 V; R
= 5 V; R
= 3.3 V; R
0
0
voltage.
power.
L
L
0.4
= 4 Ω.
= 8 Ω.
L
= 4 Ω.
(1)
(2)
(3)
(4)
(5)
2
0.8
1.2
(4) V
(5) V
P
maximum available repetitive
peak output current of 1 A.
o(max)
4
(1)
(2)
P
P
Product specification
is limited by P
= 5 V; R
= 3.3 V; R
1.6
V P (V)
TDA8551
P o (W)
MGM558
MGM557
L
= 16 Ω.
L
= 8 Ω.
2.0
tot
6
and a