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LM48556

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Controlador de altavoz cerámico mono de entrada analógica, con bomba de carga de 17.5 V integrada

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Hoja de datos

LM48556

ACTIVO
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Detalles del producto

Features Soft Start Fixed Haptic actuator type Piezo Input signal Analog Output voltage (max) (V) 17.5 Shutdown current (ISD) (µA) 0.1 Boost voltage (max) (V) 17.5 Vs (max) (V) 5 Vs (min) (V) 2.7 Operating temperature range (°C) -40 to 85 Rating Catalog
Features Soft Start Fixed Haptic actuator type Piezo Input signal Analog Output voltage (max) (V) 17.5 Shutdown current (ISD) (µA) 0.1 Boost voltage (max) (V) 17.5 Vs (max) (V) 5 Vs (min) (V) 2.7 Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YZR) 12 3.9375 mm² (— mm × — mm)
  • Fully Differential Amplifier
  • Externally Configurable Gain
  • Integrated Charge Pump
  • Low Power Shutdown Mode
  • Soft Start Function

Key Specifications

  • Output Voltage Swing
    • VDD = 3.6V, 1kHz 14.2VPP (typ)
    • VDD = 4.5V, 1kHz 17.5VPP (typ)
  • Power Supply Rejection Ratio
    • f = 217Hz, VDD = 3.6V 80dB (typ)
  • IDD at VDD = 3.6V 4.8mA (typ)
  • Wake-Up Time 0.5ms (typ)

Boomer is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

  • Fully Differential Amplifier
  • Externally Configurable Gain
  • Integrated Charge Pump
  • Low Power Shutdown Mode
  • Soft Start Function

Key Specifications

  • Output Voltage Swing
    • VDD = 3.6V, 1kHz 14.2VPP (typ)
    • VDD = 4.5V, 1kHz 17.5VPP (typ)
  • Power Supply Rejection Ratio
    • f = 217Hz, VDD = 3.6V 80dB (typ)
  • IDD at VDD = 3.6V 4.8mA (typ)
  • Wake-Up Time 0.5ms (typ)

Boomer is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

The LM48556 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones, where board space is at a premium. The LM48556 charge pump allows the device to deliver 17.5VPP (typ) from a single 4.5V supply. Additionally, the charge pump features a soft start function that minimizes transient current during power-up.

The LM48556 features high power supply rejection ratio (PSRR) of 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 5.0V. Additionally, the LM48556 features a differential input function and an externally configurable gain. A low power shutdown mode reduces supply current consumption to 0.1μA.

Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48556 is available in an ultra-small 12-bump DSBGA package (2mm x 1.5mm).

The LM48556 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones, where board space is at a premium. The LM48556 charge pump allows the device to deliver 17.5VPP (typ) from a single 4.5V supply. Additionally, the charge pump features a soft start function that minimizes transient current during power-up.

The LM48556 features high power supply rejection ratio (PSRR) of 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 5.0V. Additionally, the LM48556 features a differential input function and an externally configurable gain. A low power shutdown mode reduces supply current consumption to 0.1μA.

Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48556 is available in an ultra-small 12-bump DSBGA package (2mm x 1.5mm).
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* Hoja de datos LM48556 Fully Differential, Mono, Ceramic Speaker Driver datasheet (Rev. B) 2/05/2013

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