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’s Class H architecture offers significant power savings compared to traditional Class AB amplifiers. The device provides 30VP-P output drive while consuming just 15mW 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 ultra-small 12-bump DSBGA package (1.46mm x 1.97mm).
● 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
●## Key Specifications
● Output Voltage at VDD = 3.6V, RL = 6μF+10Ω, THD+N ≤ 1%
● 30VP-P (Typ)
● Quiescent Power Supply Current at 3.6V
● 2.7mA (Typ)
● Power Dissipation at 25VP-P
● 800mW (Typ)
● Shutdown Current
● 0.1μA (Typ)
●Boomer is a trademark of Texas Instruments. All trademarks are the property of their respective owners.
