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PDF STA533WF Data sheet ( Hoja de datos )
| Número de pieza | STA533WF | |
| Descripción | quad power half bridge | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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STA533WF
18-volt, 3-amp, quad power half bridge
Features
Multipower BCD technology
Low input/output pulse width distortion
200-mΩ RdsON complementary DMOS output
stage
CMOS-compatible logic inputs
Thermal protection
Thermal warning output
Undervoltage protection
Short-circuit protection
Description
The STA533WF is a monolithic quad half-bridge
stage in Multipower BCD Technology. The device
can be used as a dual bridge or reconfigured, by
connecting pin CONFIG to pins VDD, as a single
bridge with double-current capability.
The device is designed for the output stage of a
stereo Full Flexible Amplifier (FFX™). It is
capable of delivering 10 W x 4 channels into 4-Ω
PowerSSO36 package
with exposed pad down
loads with 10% THD at VCC = 18 V in
single-ended configuration.
It can also deliver 20 W + 20 W into 8-Ω loads
with 10% THD at VCC = 18 V in BTL configuration
or, in single parallel BTL configuration, 40 W into
a 4-Ω load with 10% THD at VCC = 18 V.
The input pins have a threshold proportional to
the voltage on pin VL.
The STA533WF comes in a 36-pin PowerSSO
package with exposed pad down (EPD).
Table 1. Device summary
Order code
Temperature range
STA533WF
STA533WF13TR
0 to 70 °C
0 to 70 °C
Package
PowerSSO36 EPD
PowerSSO36 EPD
Packaging
Tube
Tape and reel
July 2010
Doc ID 17658 Rev 1
1/15
www.st.com
15
1 page  
STA533WF
www.DataSheet4U.com
Electrical characteristics
Table 6. Electrical characteristics (continued)
Symbol
Parameter
Test conditions
Min Typ Max Unit
Dt_d
td_ON
td OFF
tr
High current dead time
(dynamic)
Turn-on delay time
Turn-off delay time
Rise time
tf Fall time
VIN-Low
Half-bridge input, low-level
voltage
VIN-High
Half-bridge input, high-level
voltage
IIN-H
High-level input current
IIN-L Low-level input current
IPWRDN-H
High level PWRDN pin input
current
VLow
Low logical state voltage
(pins PWRDN, TRISTATE)
VHigh
High logical state voltage
(pins PWRDN, TRISTATE)
L = 22 µH, C = 470 nF
RL = 8 Ω, Idd = 2.0 A -
see Figure 3
Resistive load
-
Resistive load
-
Resistive load
see Figure 2
-
Resistive load
see Figure 2
-
10
40
40
8
8
- --
-
VIN = VL
VIN = 0.3 V
VL = 3.3 V
VL / 2 +
300 mV
-
-1
-1
- 35
VL = 3.3 V
--
VL = 3.3 V
1.7 -
20 ns
60 ns
60 ns
10 ns
10 ns
VL / 2 -
300 mV
V
-V
- µA
- µA
- µA
0.8 V
-V
IVCC-
PWRDN
IFAULT
Supply current from VCC in
power down mode
Output current on pins
FAULT, THWARN with fault
condition
VPWRDN = 0 V
Vpin = 3.3 V
- - 10 µA
- 1 - mA
IVCC-HiZ
Supply current from VCC in
3-state
VTRISTATE = 0 V
-
22 -
mA
IVCC
Supply current from VCC in
operation (both channels
switching)
Input pulse width
= 50% duty,
switching frequency
= 384 kHz,
no LC filters
-
50 -
mA
IOCP
Overcurrent protection
threshold (short-circuit current -
limit)
3.0 4.0 -
A
VUVP
Undervoltage protection
threshold
-
- 3.5 4.3 V
tpw_min Output minimum pulse width No load
70 -
150 ns
Doc ID 17658 Rev 1
5/15
5 Page 
STA533WF
4 Heatsink requirements
www.DataSheet4U.com
Heatsink requirements
Using the STA533WF mounted on a double-layer PCB having 2 copper ground areas of
3 x 3 cm2 and with 16 via holes the junction to ambient thermal resistance is approximately
24 °C/W in natural air convection.
Figure 8. Double-layer PCB with copper ground areas and 16 via holes
With the dissipated power within the device depending primarily on the supply voltage, the
load impedance and the output modulation level, the maximum estimated dissipated power,
Pdmax, for the STA533WF is:
4 W for 2 x 20 W into 8 Ω at 18 V
< 5 W for 2 x 10 W into 8 Ω + 1 x 20 W into 4 Ω at 18 V.
The figure below shows the power derating curve for the PowerSSO36 EPD package on
PCBs with copper areas of 2 x 2 cm2 and 3 x 3 cm2.
Figure 9. Power derating curves for PCB used as heatsink
Pd (W) 8
7
6
Copper Area 3x3 cm
and via holes
5 TSDTAA7543931PWF
4 PPSoSwOe3r6SSO36
3
2
Copper Area 2x2 cm
and via holes
1
0
0 20 40 60 80 100 120 140
Tamb ( °C)
160
Doc ID 17658 Rev 1
11/15
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet STA533WF.PDF ] | |
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