STA518 is a monolithic quad half bridge stage in Multipower 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. The device is particularly designed to make the output stage of a stereo All-Digital High Efficiency (DDX™) amplifier capable to deliver an output power of 24W x 4 channels @ THD = 10% at Vcc 30V on 4W load in single ended configuration. It can also deliver 50 + 50W @ THD = 10% at Vcc 29V as output power on 8W load in BTL configuration and 70W @ THD = 10% at Vcc 34V on 8W in single paralleled BTL configuration. The input pins have threshold proportional to VL pin voltage.
The STA518 is a monolithic quad half bridge stage utilizing Multipower BCD technology. It is specifically designed for the output stage of stereo All-Digital High Efficiency (DDX) amplifiers, capable of delivering up to 24W x 4 channels in single-ended configuration or 50 + 50W in BTL configuration. The device features complementary DMOS output stages with a minimum RdsON of 200mΩ and includes protection features such as thermal shutdown, under-voltage protection, and short circuit protection.
| Supply Voltage (DC) | 10 to 36 V |
|---|---|
| Power Dissipation (Tcase = 70°C) | 21 W |
| RdsON (Typical) | 200 mΩ |
| Short Circuit Current Limit | 3.5 A |
| Thermal Warning Temperature | 130 °C |
It can deliver 50 + 50W @ THD = 10% at Vcc 29V as output power on 8W load in BTL configuration.
The device can be reconfigured as a single bridge by connecting the CONFIG pin to the Vdd pin.
The device features minimum input output pulse width distortion.