July 1994 2
Philips Semiconductors Product specification
2 x 22 W stereo BTL differentialamplifier with speaker protection and TDA1556Q
FEATURES
•Few peripheral components
•High output power
•Low output offset voltage
•Fixed gain
•Loudspeaker protection (with diagnostic facility)
•Differential inputs
•Dynamic Distortion Detector (DDD)
•High common mode input signal
•Very high CMRR
•Good ripple rejection
•Mute/stand-by switch
•Load dump protection
•Short-circuit safe
•Thermally protected
•Reverse polarity safe
•High energy handling capability at the outputs (VP = 0 V)
•Electrostatic discharge protection
•No switch-on/switch-off plop
•Flexible leads
•Low thermal resistance
GENERAL DESCRIPTION
TDA1556Q is a monolithic integrated class-B output
amplifier containing two 22 Watt amplifiers in a BTL
configuration. The device is contained in a 17-lead
single-in-line (SIL) plastic power package. It has two
differential inputs and is primarily intended for car booster
applications.
QUICK REFERENCE DATA
ORDERING INFORMATION
Note
1. SOT243-1; 1996 August 19.
SYMBOL PARAMETER CONDITION MIN. TYP. MAX. UNIT
VPpositive supply voltage
operating 6.0 14.4 18 V
non-operating −−30 V
load dump −−45 V
IORM repetitive peak output current −−4A
I
Ptotal quiescent current −80 −mA
Isb stand-by current −0.1 100 µA
Isw switch-on current −−60 µA
Ziinput impedance 50 −−kΩ
T
vj virtual junction temperature −−150 °C
POoutput power 4 Ω; THD = 10% −22 −W
SVRR supply voltage ripple rejection RS = 0 Ω; f = 100 Hz to 10 kHz 48 −−dB
Vos DC output offset voltage −−100 mV
αchannel separation 40 −−dB
∆Gvchannel unbalance −−1dB
CMRR rejection ratio −72 −dB
EXTENDED TYPE NUMBER PACKAGE
PINS PIN POSITION MATERIAL CODE
TDA1556Q(1) 17 SIL plastic SOT243R