Philips TDA8586 - Manual (Page 2)

2001 Jul 23 2
Philips Semiconductors Preliminary specification
Power amplifier with load detection and
auto BTL/SE selection
TDA8586
FEATURES
General
•
Operating voltage from 8 to 18 V
•
Low distortion
•
Few external components, fixed gain
•
Automatic mode selection (SE or BTL) depending on
connected rear loads
•
Can be used as a stereo amplifier in Bridge-Tied Load
(BTL) or quad Single-Ended (SE) amplifiers
•
Single-ended mode without loudspeaker capacitor
•
Soft clipping, to guarantee good clip behaviour with
inductive loads
•
Mute and standby mode with one-pin operation
•
Diagnostic information for Dynamic Distortion Detector
(DDD), high temperature (140
°
C) operation mode and
short-circuit
•
No switch-on/off plops when switching between standby
and mute and from mute to on
•
Load detection on rear channels when switching from
standby to mute
•
Fast mute on supply voltage drops (low V
P
mute).
Protection
•
Short-circuit proof to ground, positive supply voltage on
all pins and across load
•
ESD protected on all pins
•
Thermal protection against temperatures exceeding
150
°
C
•
Load dump protection
•
Overvoltage protection.
GENERAL DESCRIPTION
The device incorporates the following functions:
•
4
×
6 W SE amplifies without SE capacitor, because of
the availability of 2 half supply voltage power buffers
•
2
×
20 W BTL amplifiers
•
Automatic switching between 2 and 4 speaker
operation. The mode of operation is determined during
start-up.
This amplifier is protected for all general short-circuit
conditions to battery or ground, overvoltage, 45 V load
dump and short-circuits on the speaker outputs.
The device is contained in a 20-pin power HSOP package,
but is also available in a 17-pin SIL power package. When
packaged in the 20-pin HSOP package additional
functions are available:
•
DDD level selection between 2 and 10%
•
Overrule pin for changing mode of operation
(from SE to BTL or from BTL to SE).
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA8586Q DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm) SOT243-1
TDA8586TH HSOP20 heatsink small outline package; 20 leads; low stand-off SOT418-2