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1997 Aug 14 2
Philips Semiconductors Preliminary specification
2 × 23 W high efficiency car radio power
amplifier
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
V
P
supply voltage DC biased 6.0 14.4 18 V
non operating −−30 V
load dump −−50 V
I
ORM
repetitive peak output current −−4A
I
q(tot)
total quiescent current R
L
= ∞−95 150 mA
I
stb
standby current − 150µA
Z
i
input impedance − 60 − kΩ
P
o
output power RL = 4 Ω; EIAJ − 36 − W
THD 10% 21 23 − W
G
v
voltage gain 31 32 33 dB
CMRR common mode rejection ratio f = 1 kHz; R
s
=0Ω−80 − dB
SVRR supply voltage ripple rejection f = 1 kHz; R
s
=0Ω 45 55 − dB
∆V
O
DC output offset voltage −−150 mV
α
cs
channel separation R
s
=0kΩ 40 60 − dB
∆G
v
channel unbalance −−1dB
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA1561Q DBS13P plastic DIL-bent-SIL power package; 13 leads (lead length 12 mm) SOT141-6