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參數(shù)資料
| 型號(hào)： | TDA8580J |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Multi-purpose power amplifier |
| 中文描述： | 多用途功率放大器 |
| 文件頁(yè)數(shù)： | 6/28頁(yè) |
| 文件大?。?/td> | 181K |
| 代理商： | TDA8580J |
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2000 Apr 18
6
Philips Semiconductors
Preliminary specification
Multi-purpose power amplifier
TDA8580J
FUNCTIONAL DESCRIPTION
TheTDA8580Jisamulti-purposepoweramplifierwithfour
amplifiers which can be connected in the following
configurationswithhighoutputpowerandlowdistortion(at
minimum quiescent current):
Dual bridge-tied load amplifiers
Quad single-ended amplifiers
Dual single-ended amplifiers and one bridge-tied load
amplifier.
The amplifier can be switched in on, mute and off
(standby)bytheMUTEandSTANDBYpins(forinterfacing
directly with a microcontroller). One-pin operation is also
possible by applying a voltage greater than 8 V to the
STANDBY pin to switch the amplifier in on mode.
Special attention is given to the dynamic behaviour as
follows:
Slow offset change between mute and on (controlled by
MUTE and STANDBY pins)
Low noise levels, which are independent of the supply
voltage.
Protections are included to avoid the IC being damaged at:
Over temperature: T
j
> 150
°
C
Short-circuit of the output pin(s) to ground or supply rail;
when short-circuited, the power dissipation is limited
ESD protection (Human Body Model 3000 V, Machine
Model 300 V)
Energy handling. A DC voltage of 6 V can be connected
to the output of any amplifier while the supply pins are
short-circuited to ground.
Diagnostics are available for the following conditions
(see Figs 3, 4 and 5):
Chip temperature above 145
°
C
Distortion over 2% due to clipping
Short-circuit protection active.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
P
supply voltage
operating
no signal condition
24
28
18
6
4.5
28
26
V
V
V
A
A
V
V
V
DIAG
I
OSM
I
ORM
V
P(scol)
V
P(scg)
voltage on pin DIAG
non-repetitive peak output current
repetitive peak output current
supply voltage with short-circuit across load
supply voltage with short-circuit from output
to ground
supply voltage with short-circuit from output
to supply
reverse polarity
total power dissipation
junction temperature
storage temperature
ambient temperature
V
P(scs)
16
V
V
P(rp)
P
tot
T
j
T
stg
T
amb
55
40
6
75
150
+150
+85
V
W
°
C
°
C
°
C
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
R
th(j-a)
R
th(j-c)
thermal resistance from junction to ambient
thermal resistance from junction to case
in free air
40
1.5
K/W
K/W
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