June 2011 Doc ID 17658 Rev 2 1/15
15
STA533WF
18-volt, 3-amp, quad power half-bridge
Features
■ Multipower BCD technology
■ Low input/output pulse width distortion
■ 200-mΩ R
dsON
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
loads with 10% THD at V
CC
=18V in
single-ended configuration.
It can also deliver 20 W + 20 W into 8-Ω loads
with 10% THD at V
CC
= 18 V in BTL configuration
or, in single parallel BTL configuration, 40 W into
a 4-Ω load with 10% THD at V
CC
= 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).
PowerSSO36 package
with exposed pad down
Table 1. Device summary
Order code Temperature range Package Packaging
STA533WF 0 to 70 °C PowerSSO36 EPD Tube
STA533WF13TR 0 to 70 °C PowerSSO36 EPD Tape and reel
www.st.com
