LM48580

Manufacturer Part NumberLM48580
ManufacturerTexas Instruments
LM48580 datasheet
 


Specifications of LM48580

Supply Min(min)(volt)2.5Supply Max(max)(volt)5.5
Voltage Output Pk To Pk(v)30Pin/package12DSBGA
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LM48580
LM48580
High Efficiency Class H, High Voltage, Haptic Piezo Actuator /
Ceramic Speaker Driver
Literature Number: SNAS491

LM48580 Summary of contents

  • Page 1

    ... LM48580 LM48580 High Efficiency Class H, High Voltage, Haptic Piezo Actuator / Ceramic Speaker Driver Literature Number: SNAS491 ...

  • Page 2

    ... 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 micro SMD package (1.46mm x 1.97mm). Key Specifications ■  ...

  • Page 3

    ... Connection Diagrams TL Package 1.46mm x 1.97mm x 0.6mm Top View Order Number LM48580TL See NS Package Number TLA12Z1A www.national.com 12–Bump micro SMD Marking 30108071 TLA12 Package View (Bumps Up) 2 30108072 Top View XY = Date code TT = Die traceability G = Boomer Family M3 = LM48580TL 30108031 ...

  • Page 4

    ... Ordering Information Package Order Package Drawing Number Number LM48580TL 12 Bump µSMD TLA12Z1A LM48580TLX 12 Bump µSMD TLA12Z1A Pin Descriptions Bump Name A1 OUT+ A2 SGND A3 IN+ B1 OUT- B2 GAIN B3 IN AMP C2 SHDN BST PGND Ordering Information Table Transport Media 250 units on tape and reel 3000 units on tape and reel TABLE 1 ...

  • Page 5

    ... RIPPLE f = 1kHz RIPPLE V = 200mV sine CM P 217Hz RIPPLE f = 1kHz RIPPLE 4 −65° 150°C ≤ ≤ (Note 10) −40° MAX ≤ 2. 24dB unless otherwise specified. Limits V LM48580 Min Typ Max (Note 8) (Note 7) (Note 8) 2.5 5.5 2 800 830 0 1.4 1.6 63 360 17.5 18 18.5 23.5 24 24.5 29 ...

  • Page 6

    ... Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Conditions SHDN SHDN SHDN ) / θ − the given in Absolute Maximum Ratings, whichever is lower +25ºC, and at the Recommended Operation Conditions at the time of product A FIGURE 2. PSRR Test Circuit FIGURE 3. CMRR Test Circuit 5 LM48580 Min Typ Max (Note 8) (Note 7) (Note 8) 2.1 1100 1.2 0.45 0 θ ...

  • Page 7

    Typical Performance Characteristics THD+N vs Frequency V = 3.6V OUT = 6μF + 10Ω Output Voltage vs Frequency V = 3.6V, THD 6μF + 10Ω THD+N vs Output Voltage = ...

  • Page 8

    Power Consumption vs Output Voltage = 6μF + 10Ω 3.6V 30108015 Output Voltage vs Supply Voltage = 6μF + 10Ω 200Hz R L 30108017 CMRR vs Frequency V = 3.6V ...

  • Page 9

    ... Application Information GENERAL AMPLIFIER FUNCTION The LM48580 is a fully differential, Class H ceramic element driver for ceramic speakers and haptic actuators. The inte- grated, high efficiency boost converter dynamically adjusts the amplifier’s supply voltage based on the output signal, in- creasing headroom and improving efficiency compared to a conventional Class AB driver ...

  • Page 10

    ... Table 3 lists various inductors and their man- ufacturers. Choose an inductor with a saturation current rating greater than the maximum operating peak current of the LM48580 (> 1A). This ensures that the inductor does not sat- urate, preventing excess efficiency loss, over heating and possible damage to the inductor. Additionally, choose an in- ductor with the lowest possible DCR (series resistance) to further minimize efficiency losses ...

  • Page 11

    ... Murata GRM1885C1H101JA01D 4.7µF ±10% 10V X5R Ceramic Capacitor (603) Panasonic ECJ-1VB1A474K Murata GRM188R61A474KA61D 0.1µF ±10% 50V X7R Ceramic Capacitor (603) Panasonic ECJ-1VB1H104K Murata GRM188R71H104KA93D 20V, 500mA Schottky Diode (SOD-523) ON Semiconductor NSR0520V2T1G 4.7µH ±20% 1.1A Inductor Taiyo Yuden BRL3225T4R7M 3-Pin Header LM48580TL (12-Bump microSMD) 10 ...

  • Page 12

    Demo Board Schematic 11 30108006 www.national.com ...

  • Page 13

    PC Board Layout Top Silk Screen Layer 2 Bottom Silkscreen www.national.com 30108008 Top Layer 30108003 30108002 Bottom Layer 12 30108007 30108005 Layer 3 30108001 ...

  • Page 14

    Revision History Rev Date 1.0 02/23/10 Description Initial released. 13 www.national.com ...

  • Page 15

    ... Physical Dimensions X1 = 1.463±0.03mm www.national.com inches (millimeters) unless otherwise noted Thin micro SMD Order Number LM48580TL NS Package Number TLA12Z1A     1.970±0.03mm X3 = 0.600±0.075mm 14 ...

  • Page 16

    Notes 15 www.national.com ...

  • Page 17

    For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs ...

  • Page 18

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...