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TDA8925 Scheda tecnica(PDF) 3 Page - NXP Semiconductors |
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TDA8925 Scheda tecnica(HTML) 3 Page - NXP Semiconductors |
3 / 23 page 2004 May 06 3 Philips Semiconductors Product specification Power stage 2 x 15 to 25 W class-D audio amplifier TDA8925 1 FEATURES • High efficiency (> 94 %) • Operating voltage from ±7.5 V to ±30 V • Very low quiescent current • High output power • Diagnostic output • Usable as a stereo Single-Ended (SE) amplifier • Electrostatic discharge protection (pin to pin) • No heatsink required. 2 APPLICATIONS • Television sets • Home-sound sets • Multimedia systems • All mains fed audio systems. 3 GENERAL DESCRIPTION The TDA8925 is a switching power stage for a high efficiency class-D audio power amplifier system. With this power stage a compact 2 × 15 W self oscillating digital amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required. The system operates over a wide supply voltage range from ±7.5 V up to ±30 V and consumes a very low quiescent current. 4 QUICK REFERENCE DATA 5 ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT General VP supply voltage ±7.5 ±15 ±30 V Iq(tot) total quiescent current no load connected; VP = ±15 V − 25 45 mA η efficiency endstage Po = 15 W; RL =8 Ω; VP = ±15 V − 94 − % Stereo single-ended configuration Po output power RL =8 Ω; THD = 10 %; VP = ±15 V 14 15 − W RL =6 Ω; THD = 10 %; VP = ±15 V − 20 − W TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA8925ST RDBS17P plastic rectangular-DIL-bent-SIL power package; 17 leads (row spacing 2.54 mm) SOT577-2 TDA8925J DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 7.7 mm) SOT243-3 |
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