1997 Aug 14 2
Philips Semiconductors Preliminary specification
2×23 W high efficiency car radio poweramplifier TDA1561Q
FEATURES
•Low dissipation due to switching from Single-Ended
(SE) to Bridge-Tied Load (BTL) mode
•High Common Mode Rejection Ratio (CMRR)
•Mute/standby/operating/SE-only (mode select pin)
•Zero crossing mute and standby circuit
•Load dump protection circuit
•Short-circuit safe to ground, to supply voltage and
across load
•Loudspeaker protection circuit
•Device switches to single-ended operation at excessive
junction temperatures.
GENERAL DESCRIPTION
The TDA1561Q is a monolithic power amplifier in a 13 lead
single-in-line (SIL) plastic power package. It contains two
identical 23 W amplifiers. The dissipation is minimized by
switching from SE to BTL mode, only when a higher output
voltage swing is needed. The device is primarily
developed for car radio applications.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VPsupply voltage DC biased 6.0 14.4 18 V
non operating −−30 V
load dump −−50 V
IORM repetitive peak output current −−4A
I
q(tot) total quiescent current RL=∞−95 150 mA
Istb standby current −150µA
Z
i
input impedance −60 −kΩ
Pooutput power RL =4 Ω; EIAJ −36 −W
THD 10% 21 23 −W
Gvvoltage gain 31 32 33 dB
CMRR common mode rejection ratio f =1 kHz; Rs=0Ω−80 −dB
SVRR supply voltage ripple rejection f =1 kHz; Rs=0Ω45 55 −dB
∆VODC output offset voltage −−150 mV
αcs channel separation Rs=0kΩ40 60 −dB
∆Gvchannel unbalance −−1dB
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA1561Q DBS13P plastic DIL-bent-SIL power package; 13 leads (lead length 12mm) SOT141-6