The LM48580 is a fully differential, high voltage driver for piezo actuators and ceramic speakers for portable multi-media devices. Part of TI’s Powerwise™ product line, the LM48580 Class H architecture offers significant power savings compared to traditional Class AB amplifiers. The device provides 30 VP-P output drive while consuming just 15 mW of quiescent power.
The LM48580 is a single supply driver with an integrated boost converter which allows the device to deliver 30 VP-P from a single 3.6 V supply.
The LM48580 has three pin-programmable gain settings and a low power Shutdown mode that reduces quiescent current consumption to 0.1 µA. The LM48580 is available in an ultra-small 12-bump DSBGA package.
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|Part number||Order||Analog supply (Min) (V)||Analog supply (Max) (V)||Speaker channels (Max)||Architecture||Audio input type||Shutdown current (ISD) (uA)||PSRR (dB)||Package Group||Package size: mm2:W x L (PKG)||Iq (Typ) (mA)||Operating temperature range (C)|
||2.5||5.5||Mono||Class H||Analog Input||0.5||75||DSBGA | 12||12DSBGA: 4 mm2: 1.8 x 2 (DSBGA | 12)||2.7||-40 to 85|