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LM48560 Datasheet(PDF) 1 Page - Texas Instruments |
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LM48560 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 27 page MUX/ GAIN STAGE VDD IN1+ IN1- SGND OUT+ OUT- +2.7V to +5.5V CS CBST BOOST CONVERTER ALC SCL/GAIN SW PGND VBST L1 SHDN D1 4.7 PH 1 PF 10: I2C INTERFACE IN2+ IN2- SDA/SEL 0.47 PF CIN CIN CIN CIN SET SW/HW 0.47 PF 0.47 PF 0.47 PF RL CL Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM48560 SNAS513F – AUGUST 2011 – REVISED NOVEMBER 2015 LM48560 Boomer™ Audio Power Amplifier Series High Voltage Class H Ceramic Speaker Driver With Automatic Level Control 1 Features 3 Description The LM48560 device is a high voltage, high 1 • Class H Topology efficiency, Class H driver for ceramic speakers and • Integrated Boost Converter piezo actuators. The LM48560 device’s Class H • Bridge-Tied Load (BTL) Output architecture offers significant power savings compared to traditional Class AB amplifiers. The • Selectable Differential Inputs device provides 30 VP-P output drive while consuming • Selectable Control Interfaces just 4 mA of quiescent current from a 3.6 V supply. – (Hardware or Software mode) The LM48560 device features TI’s unique automatic • I2C Programmable ALC level control (ALC) that provides output limiter • Low Supply Current functionality. The LM48560 device features two fully differential inputs with separate gain settings, and a • Minimum External Components selectable control interface. In software control mode, • Micro-Power Shutdown the gain control and device modes are configured • Available in Space-Saving DSBGA Package through the I2C interface. In hardware control mode, • Key Specifications: the gain and input mux are configured through a pair of logic inputs. – Output Voltage at VDD = 3.6 V, RL = 1.5 μF + 10 Ω, THD+N ≤ 1% The LM48560 device has a low power shutdown mode that reduces quiescent current consumption to – 30 VP-P (Typical) 0.1 μA. The LM48560 device is available in an ultra- – Quiescent Power Supply Current small 16–bump DSBGA package (1.97 mm × 1.97 at 3.6 V (ALC Enabled) mm). – 4 mA (Typical) Device Information(1) – Power Dissipation at 25 VP-P, 1 W (Typical) PART NUMBER PACKAGE BODY SIZE (NOM) – Shutdown Current, 0.1 μA (Typical) LM48560 DSBGA (16) 1.97 mm × 1.97 mm 2 Applications (1) For all available packages, see the orderable addendum at the end of the data sheet. • Touch Screen Smart Phones • Tablet PCs Typical Application Circuit • Portable Electronic Devices • MP3 Players 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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