TDA8950 2 150 W class-D power amplier Rev. 02 11 June 2009 Product data sheet 1. General description The TDA8950 is a high-efciency Class D audio power amplier. The typical output power is 2 150 W with a speaker load impedance of 4 . The TDA8950 is available in both HSOP24 and DBS23P power packages. The amplier operates over a wide supply voltage range from 12.5 V to 40 V and features low quiescent current consumption. 2. Features n Pin compatible with TDA8920B for both HSOP24 and DBS23P packages n Symmetrical operating supply voltage range from 12.5 V to 40 V n Stereo full differential inputs, can be used as stereo Single-Ended (SE) or mono Bridge-Tied Load (BTL) amplier n High output power in typical applications: u SE 2 150 W, R =4 (V = 37 V) L P u SE 2 170 W, R =4 (V = 39 V) L P u SE 2 100 W, R =6 (V = 37 V) L P u BTL 1 300 W, R =8 (V = 37 V) L P n Low noise n Smooth pop noise-free start-up and switch off n Zero dead time switching n Fixed frequency n Internal or external clock n High efciency n Low quiescent current n Advanced protection strategy: voltage protection and output current limiting n Thermal FoldBack (TFB) n Fixed gain of 30 dB in SE and 36 dB in BTL applications n Fully short-circuit proof across load n BD modulation in BTL conguration 3. Applications n DVD n Mini and micro receiver n Home Theater In A Box (HTIAB) system n High-power speaker systemTDA8950 NXP Semiconductors 2 150 W class-D power amplier 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit 1 General, V = 30 V P 2 V supply voltage Operating mode 12.5 35 40 V P V overvoltage protection supply voltage Standby, Mute modes V - V 85 - 90 V P(ovp) DD SS I total quiescent current Operating mode no load no lter no -50 75 mA q(tot) RC-snubber network connected Stereo SE conguration 3 P output power T =85 C L =22 H C = 680 nF o j LC LC (see Figure 10) THD + N = 10 % R =4 V = 39 V 170 W L P THD + N = 0.5 % R = 4 V = 37 V - 100 - W L P THD + N = 10 % R = 4 V = 37 V - 150 - W L P THD + N = 10 % R = 6 V = 37 V - 100 - W L P Mono BTL conguration 3 P output power T =85 C L =22 H C = 680 nF - 300 - W o j LC LC (see Figure 10) R =8 L THD + N = 10 % V = 37 V P 1 V is the supply voltage on pins VDDP1, VDDP2 and VDDA. P 2 The circuit is DC adjusted at V = 12.5 V to 32.5 V. P 3 Output power is measured indirectly based on R measurement see Section 13.3. DSon 5. Ordering information Table 2. Ordering information Type number Package Name Description Version TDA8950J DBS23P plastic DIL-bent-SIL power package 23 leads (straight lead length 3.2 mm) SOT411-1 TDA8950TH HSOP24 plastic, heatsink small outline package 24 leads low stand-off height SOT566-3 TDA8950 2 NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 11 June 2009 2 of 39