LM48580 High Efficiency Class H, High Voltage, Haptic Piezo Actuator / Ceramic Speaker Driver | TI.com

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High Efficiency Class H, High Voltage, Haptic Piezo Actuator / Ceramic Speaker Driver



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.


  • Class H Driver
  • Integrated Boost Converter
  • Bridge-tied Load Output
  • Differential Input
  • Three Pin-Programmable Gains
  • Low Supply Current
  • Minimum External components
  • Micro-Power Shutdown
  • Thermal Overload Protection
  • Available in Space-Saving 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)
LM48580 Order now 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