TDA8547 데이터 시트보기 (PDF) - Philips Electronics
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TDA8547 Datasheet PDF : 24 Pages
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Philips Semiconductors
2 × 1 W BTL audio amplifier with output
channel switching
Preliminary specification
TDA8547
DC CHARACTERISTICS
VCC = 5 V; Tamb = 25 °C; RL = 8 Ω; VMODE = 0 V; gain = 20 dB; measured in BTL application circuit Fig.4; unless
otherwise specified.
SYMBOL
VCC
Iq
PARAMETER
supply voltage
quiescent current
Istb
standby current
VO
DC output voltage
VOUT+ − VOUT− differential output voltage
offset
IIN+, IIN−
VMODE
input bias current
input voltage MODE pin
IMODE
VSELECT
input current MODE pin
input voltage SELECT pin
ISELECT
input current SELECT pin
CONDITIONS
operating
BTL 2 channels;
note 1
BTL 1 channel;
note 1
VMODE = VCC
note 2
MIN.
2.2
−
TYP.
5
15
MAX.
18
22
UNIT
V
mA
−
8
12
mA
−
−
10
µA
−
2.2
−
V
−
−
50
mV
−
−
operating
0
−
mute
1.5
−
standby
VCC − 0.5 −
0 V < VMODE < VCC −
−
channel 1 = standby; 0
−
channel 2 = on
channel 1 = on;
VCC − 1 −
channel 2 = standby
VSELECT = 0 V
−
−
500
nA
0.5
V
VCC − 1.5 V
VCC
V
20
µA
1
V
VCC
V
100
µA
Notes
1. Measured with RL = ∞. With a load connected at the outputs the quiescent current will increase, the maximum of this
increase being equal to the DC output offset voltage divided by RL.
2. The DC output voltage with respect to ground is approximately 0.5VCC.
1997 Oct 07
7
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