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PDF ( 数据手册 , 数据表 ) STA515

零件编号 STA515
描述 40V 3.0A Quad Power Half Bridge
制造商 ST Microelectronics
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STA515 数据手册, 描述, 功能
STA515www.DataSheet4U.com
40V 3.0A QUAD POWER HALF BRIDGE
PRODUCT PREVIEW
1 FEATURES
MULTIPOWER BCD TECHNOLOGY
MINIMUM INPUT OUTPUT PULSE WIDTH
DISTORTION
200mRdsON COMPLEMENTARY DMOS
OUTPUT STAGE
CMOS COMPATIBLE LOGIC INPUTS
THERMAL PROTECTION
THERMAL WARNING OUTPUT
UNDER VOLTAGE PROTECTION
SHORT CIRCUIT PROTECTION
2 DESCRIPTION
STA515 is a monolithic quad half bridge stage in Mul-
tipower BCD Technology. The device can be used
also as dual bridge or reconfigured, by connecting
CONFIG pin to Vdd pin, as single bridge with double
current capability.
Figure 1. Package
PSSO36 (slug up)
Table 1. Order Codes
Part Number
STA515
Package
PSSO36 (slug up)
The device is particularly designed to make the out-
put stage of a stereo All-Digital High Efficiency
(DDX™) amplifier capable to deliver an output power
of 20W x 4 channels @ THD = 10% at Vcc 26V on 4
load in single ended configuration.
It can also deliver 40 + 40W @ THD = 10% at Vcc 26V
as output power on 8load in BTL configuration and
60W @ THD = 10% at Vcc 32V on 8in single paral-
leled BTL configuration. The input pins have thresh-
old proportional to VL pin voltage.
Figure 2. AUDIO APPLICATION CIRCUIT ( Quad single ended)
+3.3V
IN1A
IN1A
VL
CONFIG
29
23
24
PWRDN PWRDN 25
R57 R59
10K 10K
FAULT
TH_WAR
C58
100nF
C58
100nF
TRI-STATE
TH_WAR
IN1B
IN1B
VDD
VDD
VSS
VSS
C53
100nF
VCCSIGN
C60
100nF
VCCSIGN
IN2A
IN2A
GND-Reg
GND-Clean
27
26
28
30
21
22
33
34
35
36
31
20
19
PROTECTIONS
&
LOGIC
REGULATORS
IN2B
IN2B 32
GNDSUB
1
M3
M2
M5
M4
M17
M15
M16
M14
VCC1P
15
17
OUTPL
16
OUTPL
14 PGND1P
12 VCC1N
C51
11 1µF
OUTNL
10
OUTNL
13 PGND1N
7 VCC2P
R41
20
C41
330pF
L11 22µH
C71
100nF
R51
6
C61
100nF
R42
20
C42
330pF
L12 22µH
C72
100nF
R52
6
8
OUTPR
9
OUTPR
6 PGND2P
4 VCC2N
C52
3 1µF
OUTNR
2
OUTNR
5 PGND2N
D03AU1474
R43
20
C43
330pF
L13 22µH
C73
100nF
R53
6
C62
100nF
R44
20
C44
330pF
L14 22µH
C74
100nF
R54
6
R61
5K C31 820µF
+VCC
C21
2200µF
C81
100nF
R62
5K
C91
1µF
4
R63
5K C32 820µF
C82
100nF
R64
5K
C92
1µF
4
R65
5K C33 820µF
C83
100nF
R66
5K
C93
1µF
4
R67
5K C34 820µF
C84
100nF
R68
5K
C94
1µF
4
July 2004
This is preliminary information on a new product now in development. Details are subject to change without notice.
REV. 2
1/14







STA515 pdf, 数据表
STA515
1) SHUTDOWN mode: with FAULT (pull-up resistor) and TRI-STATE pinswinwdwe.DpaetnadSehneet,t4aUn.caocmtivated
fault will disable the device, signaling low at the FAULT output.
The device may subsequently be reset to normal operation by toggling the TRI-STATE pin from
High to Low to High using an external logic signal.
2) AUTOMATIC recovery mode: This is shown in the Audio Application Circuit of Quad single End-
ed). The FAULT and TRI-STATE pins are shorted together and connected to a time constant circuit
comprising R59 and C58.
An activated FAULT will force a reset on the TRI-STATE pin causing normal operation to resume fol-
lowing a delay determined by the time constant of the circuit.
If the fault condition is still present , the circuit operation will continue repeating until the fault condition
is removed .
An increase in the time constant of the circuit will produce a longer recovery interval. Care must be
taken in the overall system design as not to exceed the protection thesholds under normal operation.
3.3 Power Outputs:
The STA515 power and output pins are duplicated to provide a low impedance path for the device's bridged
outputs .
All duplicate power, ground and output pins must be connected for proper operation.
The PWRDN or TRI-STATE pins should be used to set all MOSFETS to the Hi-Z state during power-up until the
logic power supply, VL , is settled.
3.4 Parallel Output / High Current Operation:
When using DDX Mode output , the STA515 outputs can be connected in parallel in order to increase the output
current capability to a load.
In this configuration the STA515 can provide 60W into 8 ohm.
This mode of operation is enabled with the CONFIG pin (pin.24) connected to VREG1 and the inputs combined
INLA=INLB, INRA=INRB and the outputs combined OUTLA=OTLB, OUTRA=OUTRB.
3.5 Additional Informations:
Output Filter: A passive 2nd-order passive filter is used on the STA515 power outputs to reconstruct an analog
Audio Signal .
System performance can be significantly affected by the output filter design and choice of passive components.
A filter design for 6ohm/8ohm loads is shown in the Typical Application circuit of fig.10.
Quad Single ended circuit (page 1) shows a filter for ½ bridge mode, 4 ohm loads.
8/14














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