TDA8547 Datasheet, PDF (7/24 Pages) NXP Semiconductors – 2 x 1 W BTL audio amplifier with output channel switching

Philips Semiconductors
2 × 1 W BTL audio amplifier with output
channel switching
Preliminary specification
TDA8547
DC CHARACTERISTICS
V_CC = 5 V; T_amb = 25 °C; R_L = 8 Ω; V_MODE = 0 V; gain = 20 dB; measured in BTL application circuit Fig.4; unless
otherwise specified.
SYMBOL
V_CC
I_q
PARAMETER
supply voltage
quiescent current
I_stb
standby current
V_O
DC output voltage
V_OUT+ − V_OUT− differential output voltage
offset
I_IN+, I_IN−
V_MODE
input bias current
input voltage MODE pin
I_MODE
V_SELECT
input current MODE pin
input voltage SELECT pin
I_SELECT
input current SELECT pin
CONDITIONS
operating
BTL 2 channels;
note 1
BTL 1 channel;
note 1
V_MODE = V_CC
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
V_CC − 0.5 −
0 V < V_MODE < V_CC −
−
channel 1 = standby; 0
−
channel 2 = on
channel 1 = on;
V_CC − 1 −
channel 2 = standby
V_SELECT = 0 V
−
−
500
nA
0.5
V
V_CC − 1.5 V
V_CC
V
20
µA
1
V
V_CC
V
100
µA
Notes
1. Measured with R_L = ∞. 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 R_L.
2. The DC output voltage with respect to ground is approximately 0.5V_CC.
1997 Oct 07
7