LM48580 Datasheet | National Semiconductor

Description The LM48580 is a fully differential, high voltage driver for piezo actuators and ceramic speakers for portable multi-media devices. Part of National’s Powerwise product line, the LM48580’s Class H architecture offers significant power savings pared to traditional Class AB amplifiers. The device provides 30VP-P output drive while consuming just 15m W of quiescent power. The LM48580 is a single supply driver with an integrated boost converter which allows the device to deliver 30VP-P from a single 3.6V supply. The LM48580 has three pin-programmable gain settings and a low power Shutdown mode that reduces quiescent current consumption to 0.1µA. The LM48580 is available in an ultrasmall 12-bump micro SMD package (1.46mm x 1.97mm). Features - - - - - - - - - - Class H Driver Integrated Boost Converter Bridge-tied Load Output Differential Input Three Pin-Programmable Gains Low Supply Current Minimum external ponents Micro-power shutdown Thermal overload protection Available in space-saving 12-bump micro SMD package Applications - - - - Touch screen Smart Phones Tablet PCs Portable Electronic Devices MP3 Players Key Specifications -  Output Voltage at VDD = 3.6V RL = 6μF+10Ω, THD+N ≤ 1% -  Quiescent Power Supply current at 3.6V 2.7m A (typ) 800m W (typ) 0.1μA (typ) 30VP-P (typ) -  Power Dissipation at 25VP-P -  Shutdown current Typical Application FIGURE 1. Typical Application Circuit Boomer® is a registered trademark of National Semiconductor Corporation. © 2010 National Semiconductor Corporation .national. Free Datasheet http://../ Connection Diagrams TL Package 1.46mm x 1.97mm x 0.6mm 12- Bump micro SMD Marking Top View XY = Date code TT = Die traceability G = Boomer Family M3 = LM48580TL Top View Order Number LM48580TL See NS Package Number TLA12Z1A TLA12 Package View (Bumps Up) .national. Free Datasheet http://../ Ordering Information Ordering Information Table Order Number...