LM4755 Datasheet | National Semiconductor

Description The LM4755 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load or 7W per channel into 8Ω using a single 24V supply at 10% THD+N. The internal mute circuit and pre-set gain resistors provide for a very economical design solution. Output power specifications at both 20V and 24V supplies and low external ponent count offer high value to consumer electronic manufacturers for stereo TV and pact stereo applications. The LM4755 is specifically designed for single supply operation. n PO at 10% THD @ 1 k Hz into 8Ω bridged TO-263 pkg. at VCC = 12V 5W(typ) Features n n n n n n n Drives 4Ω and 8Ω loads Integrated mute function Internal Gain Resistors Minimal external ponents needed Single supply operation Internal current limiting and thermal protection pact 9-lead TO-220 package Key Specifications n Output power at 10% THD with 1 k Hz into 4Ω at VCC = 24V 11W(typ) n Output power at 10% THD with 1 k Hz into 8Ω at VCC = 24V 7W(typ) n Closed loop gain 34 d B(typ) n PO at 10% THD @ 1 k Hz into 4Ω single-ended TO-263 pkg. at VCC = 12V 2.5W(typ) Applications n Stereos TVs n pact stereos n Mini ponent stereos Typical Application Connection Diagrams Plastic Package DS100059-2 Package Description Top View Order Number LM4755T Package Number TA09A DS100059-36 DS100059-1 FIGURE 1. Typical Audio Amplifier Application Circuit Top View Order Number LM4755TS Package Number TS9A © 1999 National Semiconductor Corporation DS100059 .national. Absolute Maximum Ratings (Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Input Voltage Output Current Power Dissipation (Note 3) ESD Susceptability (Note 4) Junction Temperature Soldering Information 40V T Package (10 seconds) Storage Temperature 250˚C - 40˚C to 150˚C Operating Ratings Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage...