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STA510A-STA510A13TR
44 V, 5.5 A quad power half-bridge digital audio amplifier
March 2010 Doc ID 11077 Rev 2 1/17
STA510A44-volt, 5.5-amp, quad power half bridge
Features Multipower BCD technology Minimum input, output pulse width distortion 150-mΩ RdsON complementary DMOS output
stage CMOS compatible logic inputs Thermal protection Thermal-warning output Undervoltage protection Short-circuit protection
DescriptionSTA510A is a monolithic quad half bridge stage in
Multipower BCD Technology. The device can be
used as dual bridge or reconfigured, by
connecting pin CONFIG to VDD, as a single bridge
with double current capability, or as half bridges
(Binary mode) with half current capability.
The device is intended for the output stage of a
stereo all-digital high-efficiency (DDX® ) amplifier
which employs a pulse-width modulator driver.
The STA510A is capable of delivering an output
power of 50 W into 3 Ω x 4 channels with
THD= 10% at VCC=37 V in single ended
configuration. It can also deliver 100 W + 100 W
into 6-Ω loads with THD= 10% at VCC = 36 V in
BTL configuration and 200W into 3 Ω with
THD= 10% at VCC = 36 V in single paralleled
BTL configuration.
The input pins have a threshold proportional to
the voltage on pin VL.
Table 1. Device summary
Contents STA510A2/17 Doc ID 11077 Rev 2
Contents Audio applications circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technical information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.1 Logic interface and decode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Protection circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Power outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 Parallel output / high current operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.5 Output filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.6 Applications circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
STA510A Audio applications circuit
Doc ID 11077 Rev 2 3/17 Audio applications circuit
Figure 1. Audio applications circuit (dual BTL)
Pins description STA510A
4/17 Doc ID 11077 Rev 2
2 Pins description
Figure 2. Pin connection (top view)
Table 2. Pin functions
STA510A Pins description
Doc ID 11077 Rev 2 5/17 The pin is open collector. To have a high logic value it needs to be pulled up by a resistor.
Table 2. Pin functions (continued)
Electrical specifications STA510A
6/17 Doc ID 11077 Rev 2
3 Electrical specifications
3.1 Absolute maximum ratings
3.2 Recommended operating conditions
(*) performances not guaranteed beyond recommended operating conditions
3.3 Thermal data
The power dissipated within the device depends primarily on the supply voltage, load
impedance and output modulation level. The PowerSO36 package of the STA510A includes
an exposed pad or slug on the top of the device to provide a direct thermal path from the die
to the heatsink.
Table 3. Absolute maximum ratings
Table 4. Recommended operating conditions (*)
Table 5. Thermal data
STA510A Electrical specifications
Doc ID 11077 Rev 2 7/17
3.4 Electrical characteristics
The specifications given here were obtained with the conditions VL = 3.3 V , VCC = 36 V, =8 Ω, fsw = 384 kHz and Tamb = 25 °C unless otherwise specified. See also Figure3.
.
Table 6. Electrical characteristics
Electrical specifications STA510A
8/17 Doc ID 11077 Rev 2
Figure 3. Test circuit for low current dead time for single-ended applications
Table 6. Electrical characteristics (continued)
Table 7. Logic truth table
STA510A Electrical specifications
Doc ID 11077 Rev 2 9/17
Figure 4. Block diagram for high current dead time for bridge applications
Figure 5. Test circuit for high current dead time for bridge applications
