STA533WF_11 STMICROELECTRONICS [STMicroelectronics], STA533WF_11 Datasheet

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STA533WF_11

Manufacturer Part Number
STA533WF_11
Description
18-volt, 3-amp, quad power half-bridge
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
Features
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
Table 1.
June 2011
STA533WF
STA533WF13TR
Multipower BCD technology
Low input/output pulse width distortion
200-mΩ R
stage
CMOS-compatible logic inputs
Thermal protection
Thermal warning output
Undervoltage protection
Short-circuit protection
Order code
Device summary
dsON
complementary DMOS output
0 to 70 °C
0 to 70 °C
Temperature range
Doc ID 17658 Rev 2
18-volt, 3-amp, quad power half-bridge
PowerSSO36 EPD
PowerSSO36 EPD
loads with 10% THD at V
single-ended configuration.
It can also deliver 20 W + 20 W into 8-Ω loads
with 10% THD at V
or, in single parallel BTL configuration, 40 W into
a 4-Ω load with 10% THD at 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).
Package
PowerSSO36 package
with exposed pad down
CC
= 18 V in BTL configuration
Tube
Tape and reel
CC
STA533WF
= 18 V in
CC
Packaging
= 18 V.
www.st.com
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STA533WF_11 Summary of contents

Page 1

Features ■ Multipower BCD technology ■ Low input/output pulse width distortion ■ 200-mΩ R complementary DMOS output dsON stage ■ CMOS-compatible logic inputs ■ Thermal protection ■ Thermal warning output ■ Undervoltage protection ■ Short-circuit protection Description The STA533WF is ...

Page 2

Pin description 1 Pin description Figure 1. Pin out Table 2. Pin list Pin Name 1 GNDSUB 2, 3 OUT2B 4 VCC2B 5 GND2B 6 GND2A 7 VCC2A 8, 9 OUT2A 10, 11 OUT1B 12 VCC1B 13 GND1B 14 GND1A ...

Page 3

STA533WF Table 2. Pin list (continued) Pin Name 24 CONFIG 25 PWRDN 26 TRISTATE 27 FAULT 28 THWARN 29 IN1A 30 IN1B 31 IN2A 32 IN2B 33, 34 VSS 35, 36 VCCSIG Type Configuration pin: 0: normal operation I 1: ...

Page 4

Electrical characteristics 2 Electrical characteristics Table 3. Absolute maximum ratings Symbol V DC supply voltage (Pins 4, 7, 12, 15 Voltage on pin 23 Lmax V Voltage on pins 25, 26 inputs V Voltage on ...

Page 5

STA533WF Table 6. Electrical characteristics (continued) Symbol High current dead time Dt_d (dynamic) t Turn-on delay time d_ON t Turn-off delay time d OFF t Rise time r t Fall time f Half-bridge input, low-level V IN-Low voltage Half-bridge input, ...

Page 6

Electrical characteristics Table 7. Logic truth table Pin Pin PWRDN TRISTATE Test circuits Figure 2. Test circuit Figure 3. Current dead time test circuit Duty cycle=A DTin(A) INxA 6/15 Inputs ...

Page 7

STA533WF 3 Applications information The STA533WF is a dual-channel H-bridge audio power amplifier that can deliver 20 W per channel into 8 Ω with 10% THD at V The STA533WF converts both FFX and binary-logic-controlled PWM signals into audio power ...

Page 8

Applications information Protection circuits The STA533WF includes protection circuitry for overcurrent and thermal overload conditions. A thermal warning pin (THWARN) is activated low (open-drain MOSFET) when the IC temperature exceeds 130 °C, which is in advance of the thermal shutdown ...

Page 9

STA533WF Supply decoupling capacitors To meet the performance figures given in this datasheet the STA533WF power supply must be adequately filtered. For this purpose capacitors connected from pins VCC1 to GND1 and from VCC2 to GND2 must be placed as ...

Page 10

Figure 6. Applications circuit for stereo full-bridge configuration U2 3V3 36 VCCSIG GNDSUB C22 35 VCCSIG OUT2B 34 OUT2B VSS 100nF 33 VSS VCC2B RIGHT_B R8 32 IN2B GND2B RIGHT_A 31 10K IN2A GND2A LEFT_B 30 IN1B VCC2A LEFT_A 29 ...

Page 11

STA533WF 4 Heatsink requirements Using the STA533WF mounted on a double-layer PCB having 2 copper ground areas and with 16 via holes the junction to ambient thermal resistance is approximately 24 °C/W in natural ...

Page 12

Package mechanical data 5 Package mechanical data The STA533WF comes in a 36-pin PowerSSO package with exposed pad down (EPD). Figure 10 below shows the package outline and In order to meet environmental requirements, ST offers these devices in different ...

Page 13

Figure 10. PowerSSO36 EPD outline drawing h x 45° ...

Page 14

Revision history 6 Revision history Table 9. Document revision history Date 02-Jul-2010 22-Jun-2011 14/15 Revision 1 Initial release. 2 Updated Applications circuits on page 9 Doc ID 17658 Rev 2 STA533WF Changes ...

Page 15

STA533WF Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at ...

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