RT9108N Datasheet, PDF (1/14 Pages) Richtek Technology Corporation – 15W Stereo Class-D Audio Power Amplifier

®
RT9108N
15W Stereo Class-D Audio Power Amplifier
General Description
Features
The RT9108N is a 15W per channel, high efficiency Class
D stereo audio amplifier for driving Bridge Tied Load (BTL)
speakers. The RT9108N can drive stereo speakers with
load as low as 4Ω. Its high efficiency eliminates the need
for an extra heat sink when playing music. The gain of
the amplifier can be controlled by two gain select pins.
The outputs are fully protected against shorts to GND,
PV_CC, and output to output with an auto recovery feature
and monitored output.
The RT9108N is available in a TSSOP-28 (Exposed Pad)
package.
Ordering Information
RT9108N
Package Type
CP : TSSOP-28 (Exposed Pad-Option 3)
Lead Plating System
Z : ECO (Ecological Element with
Halogen Free and Pb free)
z 8V to 25.5V Input Supply Range
z 15W/CH for an 8Ω Load, 16V Supply at 10% THD +N
z 88% Efficiency Eliminates Need for Heat Sinks
z Four Selectable or Fixed Gain Settings
z Robust Pin- to-Pin Short Circuit Protection
z Thermal Protection with Auto Recovery Option
z Surface Mount TSSOP-28 (Exposed Pad) Package
z RoHS Compliant and Halogen Free
Applications
z LCD-TV
z Monitors
z DVD Players
Marking Information
RT9108N
ZCPYMDNN
RT9108NZCP : Product Number
YMDNN : Date Code
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Simplified Application Circuit
RT9108N
PV_CC
PVCCx
BSPL
FB
LINP
OUTPL
PGND
OUTNL
GAIN0
GAIN0
BSNL
FB
Audio
Source
GAIN1
GAIN1
BSNR
OUTNR
FB
PGND
OUTPR
RINP
BSPR
FB
AGND
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS9108N-00 June 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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