參數(shù)資料
型號(hào)： 935186180112
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 音頻控制
英文描述： 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PZFM13
封裝： PLASTIC, SOT-141, SIP-13
文件頁(yè)數(shù)： 14/18頁(yè)
文件大小： 152K
代理商： 935186180112
1998 Apr 07
5
Philips Semiconductors
Product specication
2
× 8 W stereo BTL audio output amplier
with DC volume control
TDA7057AQ
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL CHARACTERISTICS
Power dissipation
Assume VP = 12 V and RL =16 . The maximum sine wave dissipation is 2 × 1.8 W = 3.6 W.
At Tamb(max) =60 °C:
Rth tot = (150 60)/3.6 = 25 K/W.
Rth tot =Rth j-c +Rth c-hs +Rth hs.
Rth c-hs +Rth hs =25 4 = 21 K/W.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VP
supply voltage
18
V
IORM
repetitive peak output current
1.25
A
IOSM
non-repetitive peak output current
1.5
A
Ptot
total power dissipation
Tcase <60 °C
22.5
W
Tamb
operating ambient temperature
40
+85
°C
Tstg
storage temperature
55
+150
°C
Tvj
virtual junction temperature
150
°C
tsc
short-circuit time
1hr
Vn
input voltage pins 1, 3, 5 and 7
5V
SYMBOL
PARAMETER
VALUE
UNIT
Rth j-c
thermal resistance from junction to case
4
K/W
Rth j-a
thermal resistance from junction to ambient in free air
40
K/W
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