Specification	LM48556TLX/NOPB

Features	Differential Inputs, Depop, Shutdown
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	1-Channel (Mono)
Package / Case	DSBGA, 12-WFBGA
Supplier Device Package	12-DSBGA
Supplier Device Package [x]	2
Supplier Device Package [y]	2.5
Type	Class AB
Voltage - Supply [Max]	4.5 V
Voltage - Supply [Min]	2.7 V

LM48556 Series

Mono, analog input, ceramic speaker driver with integrated 17.5-V charge pump

Part	Mounting Type	Output Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Supplier Device Package	Supplier Device Package [y]	Supplier Device Package [x]	Type	Operating Temperature [Max]	Operating Temperature [Min]	Features	Amplifier Type	Supplied Contents	Board Type	Utilized IC / Part
Texas Instruments LM48556TLX/NOPB	Surface Mount	1-Channel (Mono)	4.5 V	2.7 V	12-WFBGA DSBGA	12-DSBGA	2.5	2	Class AB	85 °C	-40 °C	Depop Differential Inputs Shutdown
Texas Instruments LM48556TLBD		1-Channel (Mono)	4.5 V	2.7 V									Class AB	Board(s)	Fully Populated	LM48556

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	3000	$ 1.30
		6000	$ 1.25
Texas Instruments	LARGE T&R	1	$ 2.11
		100	$ 1.85
		250	$ 1.30
		1000	$ 1.05

Description

General part information

LM48556 Series

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).

Documents

Technical documentation and resources

LM48556 Fully Differential, Mono, Ceramic Speaker Driver datasheet (Rev. B)

Data sheet