NCP4896 Datasheet, PDF (1/16 Pages) ON Semiconductor – 1.0 Watt Audio Power Amplifier with Earpiece Driving Capability

NCP4896
1.0 Watt Audio Power
Amplifier with Earpiece
Driving Capability
The NCP4896 is an audio power amplifier designed for portable
communication device applications such as mobile phones. This part
is capable of delivering 1.0 W of continuous average power to an
8.0 W BTL load from a 5.0 V power supply and, 250 mW to a 4.0 W
BTL from 2.6 V power supply. It also provides the control of driving
a single−ended earpiece and delivers 90 mW from a 5.0 V power
supply to a 32 W load.
This device provides high quality audio while requiring few
external components and minimal power consumption. It features a
low−power consumption shutdown mode, which is achieved by
driving the shutdown pin with logic Low.
The NCP4896 contains circuitry to prevent from “pop and click”
noise that would otherwise occur during turn−on and turn−off
transitions. It is also efficient when switching modes from BTL to SE
and SE to BTL.
For maximum flexibility, the part provides an externally controlled
gain (with resistors), as well as an externally controlled turn−on time
(with bypass capacitor).
Due to its excellent PSRR, it can be directly connected to the
battery, saving the use of an LDO.
Features
• Single−Ended or Differential Control
• 1.0 W to an 8.0 W BTL Load from a 5.0 V Power Supply
• Excellent PSRR: Direct Connection to the Battery
• Ultra Low Current Shutdown Mode
• 2.2 V−5.5 V Operation
• External Gain Configuration Capability
• External Turn−on Time Configuration Capability
• Thermal Overload Protection Circuitry
• Up to 1.0 nF Capacitive Load Driving Capability
• “Pop and Click” Noise Protection Circuit
• This is a Pb−Free Device
Typical Applications
• Portable Electronic Devices
• PDAs
• Mobile Phones
http://onsemi.com
MARKING
DIAGRAM
1
9−PIN FLIP−CHIP
FC SUFFIX
CASE 499AL
A3
XXX
AYWW
C1
A1
XXX
A
Y
WW
= Specific Device Code
= Assembly Location
= Year
= Work Week
PIN CONNECTIONS
9−PIN FLIP−CHIP CSP
A1
A2
SE/BTL BYP
B1
B2
VP
NC
C1
C2
A3
OUTB
B3
VM
C3
INM
SD
OUTA
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
© Semiconductor Components Industries, LLC, 2005
1
March, 2005 − Rev. 3
Publication Order Number:
NCP4896/D