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STA5100 Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer STA5100
Beschreibung 140W MONO BASH POWER AMPLIFIER
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 14 Seiten
STA5100 Datasheet, Funktion
STA5100
140W MONO
POWER AMPLIFIER
s MONOCHIP BRIDGE MONO AMPLIFIER FOR
BASH® ARCHITECTURE
s 110W OUTPUT POWER @ RL = 4 Ω,
THD = 0.5%
s 140W OUTPUT POWER @ RL = 4 Ω,
THD = 10%
s HIGH DYNAMIC PREAMPLIFIER INPUT
STAGES
s EXTERNAL PROGRAMMABLE FEEDBACK
TYPE COMPRESSORS
s AC COUPLED INPUT TO CLASS AB BRIDGE
OUTPUT AMPLIFIER
s PRECISION RECTIFIERS TO DRIVE THE
DIGITAL CONVERTER
s ON-OFF SEQUENCE/ TIMER WITH MUTE
AND STANDBY
s PROPORTIONAL OVER POWER OUTPUT
CURRENT TO LIMIT THE DIGITAL
CONVERTER
s ABSOLUTE POWER BRIDGE OUTPUT
BLOCK DIAGRAM
FLEXIWATT27
TRANSISTOR POWER PROTECTION
s ABSOLUTE OUTPUT CURRENT LIMIT
s INTEGRATED THERMAL PROTECTION
s POWER SUPPLY OVER VOLTAGE
PROTECTION
s FLEXIWATT POWER PACKAGE WITH 27 PIN
s BASH® licence required
DESCRIPTION
The STA5100 is a fully integrated power module de-
signed to implement a BASH® amplifier when used
in conjunction with STABP01 digital processor.
+VS GND -VS
OUT_ PRE
TRK PWR_INP
July 2003
IN_PRE
ATT_REL
THRESH
TRK_OUT
+
-
G
COMPRESSOR
V/l
S1
PEAK
DETECTOR
Ict
ABSOLUTE
VALUE
BLOCK
+2
+2
OUTPUT BRIDGE
OVER
VOLTAGE
PROTECTION
SOA
DETECTOR
CD+P
OUTP
OUTP
CD-P
CD+
PROT.
THERMAL
PROTECTION
TURN-
ON/OFF
SEQUENCE
STBY/MUTE
CD+N
-1 OUTN
-1 OUTN
OUTPUT BRIDGE
CD-N
D01AU1280
1/14






STA5100 Datasheet, Funktion
STA5100
ELECTRICAL CHARACTERISTCS (continued)
Symbol
Parameter
Test Condition
Rdson
OLG
Output power Rdson
Open Loop Voltage Gain
IO = 1A
GB Unity Gain Bandwidth
SR Slew Rate
PROTECTION
Vstby
Vmute
Vplay
Th1
Th2
Stby voltage range
Mute voltage range
Play voltage range
First Over temperature threshold
Second Over temperature
threshold
Unbal. Upper Unbalancing ground
Ground threshold
Referred to (CD+ - CD-)/2
Unbal. Lower Unbalancing ground
Ground threshold
Referred to (CD+ - CD-)/2
UVth Under voltage threshold
Pd_reg. Power dissipation threshold for
system regulation
|Vs+| + |Vs-|
Iprot = 50µA; @ Vds = 10V
Pd_max Switch off power dissipation
threshold
@ Vds = 10V
Iprot Protection current slope
Ilct Limiting Current threshold
for Pd > Pdreg
Min.
Typ.
100
100
1.4
7
Max.
200
Unit
m
dB
MHz
V/µs
0 0.8
1.6 3
45
130
150
V
V
V
°C
°C
5V
-5 V
20
50 62
V
W
96 W
400 µA/W
11 12 13
A
I+Vs
I-Vs
ICD+
ICD-
Positive supply current
Stby (Vstby/mute pin = 0V)
Mute (Vstby/mute pin = 2.5V)
Play (Vstby/mute pin = 5V no signal)
Negative supply current
Stby (Vstby/mute pin = 0V)
Mute (Vstby/mute pin = 2.5V)
Play (Vstby/mute pin = 5V no signal)
Positive traking rail supply current Stby (Vstby/mute pin = 0V)
Mute (Vstby/mute pin = 2.5V)
Play (Vstby/mute pin = 5V no signal)
Negative traking rail supply current Stby (Vstby/mute pin = 0V)
Mute (Vstby/mute pin = 2.5V)
Play (Vstby/mute pin = 5V no signal)
4
30
30
4
30
30
100
110
110
100
110
110
mA
mA
mA
mA
mA
mA
µA
mA
mA
µA
mA
mA
6/14

6 Page









STA5100 pdf, datenblatt
STA5100
EXTERNAL COMPONENTS
Name
Function
Ri Input resistor
R1
Rr Feedback resistor
R2
Cac AC Decoupling capacitor
C1
Cct Capacitor for the attack time
C2
R3 Release constant time Resistor
R4
R5
R6
C3
C4
R7
R8
R9
C5
R10 = R11
Resistor for tracking input voltage
filter
Resistor for tracking input voltage
filter
Resistor for tracking input voltage
filter
Capacitor for Tracking input
voltage filter
Dc decoupling capacitor
Bias Resistor for Stby/Mute
function
Stby/Mute constant time resistor
Mute resistor
Capacitor for Stby/Mute resistor
Sensing resistor for SOA detector
R12
C6 = C7
R15 = R16
C8 = C9
R13
R14
C10 = C11
C12
D1
Conversion resistor for threshold
voltage
Power supply filter capacitor
Centering resistor
Tracking rail power supply filter
Protection
TRK_out
Power supply filter capacitor
Feedback capacitor
Schottky diode
Note: Vcontrol is the voltage at Att_Rel pin.
Value
10K
(|G| = 5, Rr = 50K)
50K
(|G| = 5, Ri = 10K
100nF
(fp = 16Hz,
Rac =100K)
2.2µF
(Tattack = 13mSec,
Vcontrol = 9V,
Ict = 1.5mA)
470K
(t = 1 Sec. ,
Cct = 2.2 µF )
10K
56K
10K
1nF
1µF
10K
30K
30K
2.2µF
60m
5% 4W
100K
100nF
400 , 1W
680nF
1K
40K
470 µF , 63V
100pF
SB360
Formula
Ri = -R-G----r-
Rr = G Rr
Cac = 2----π--------f--p-1-------R-----a----c-
Cct = attackV-----c---o--I--cn---t-t--r---o---l
Rct = C----τ-c----t
12/14

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