Act fast! Use SEP22BOARDS at checkout to get free shipping on  USB Type-C applications .



40 V, 3.5 A quad power half-bridge digital audio amplifier

Quantity $ per Unit Savings
1 - 9$5.280%
10 - 24$4.7410%
25 - 99$4.4915%
100 - 249$3.8926%
250 - 499$3.6830%
Contact Sales
Out of stock
Parameter NameParameter Value
Supply Voltage Min Volt10.0
Supply Voltage Max Volt36.0
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius90.0
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NamePowerSSO 36

The 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 the CONFIG pin to the Vddpin, as a single bridge with double current capacity.

The device is particularly designed to make the output stage of a stereo all-digital high-efficiency (DDX™) amplifier capable of delivering an output power of 24 W x 4 channels @ THD = 10% at VCC30 V into a 4 Ω load in single-ended configuration.

It can also deliver 50 + 50 W @ THD = 10% at VCC29 V as output power into an 8 Ω load in BTL configuration and 70 W @ THD = 10% at VCC34 V into 8 Ω in a single paralleled BTL configuration.

The input pins have a threshold proportional to the VLpin voltage.

Key features
  • Multipower BCD technology
  • Minimum input output pulse width distortion
  • 200 mΩ RdsONcomplementary DMOS output stage
  • CMOS-compatible logic inputs
  • Thermal protection
  • Thermal warning output
  • Undervoltage protection
  • Short-circuit protection