NCP2890
1.0 Watt Audio Power
Amplifier
The NCP2890 is an audio power amplifier designed for portable
communication device applications such as mobile phone
applications. The NCP2890 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 320 mW to a 4.0
W
BTL load from a 2.6 V power supply.
The NCP2890 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 NCP2890 contains circuitry to prevent from “pop and click”
noise that would otherwise occur during turn−on and turn−off
transitions.
For maximum flexibility, the NCP2890 provides an externally
controlled gain (with resistors), as well as an externally controlled
turn−on and turn−off times (with the bypass capacitor).
Due to its excellent PSRR, it can be directly connected to the
battery, saving the use of an LDO.
This device is available in a 9−Pin Flip−Chip CSP (standard
Tin−Lead and Lead−Free versions) and a Micro8t package.
Features
http://onsemi.com
MARKING
DIAGRAMS
9−Pin Flip−Chip CSP
FC SUFFIX
CASE 499E
A3
1
MAx
AYWW
A1
8
C1
8
1
Micro8
DM SUFFIX
CASE 846A
1
x
MAB
RYW
•
•
•
•
•
•
•
•
•
•
= Specific Device Code,
G or H
A, R
= Assembly Location
Y
= Year
WW, W = Work Week
Pb−Free Packages are Available
1.0 W to an 8.0
W
BTL Load from a 5.0 V Power Supply
Excellent PSRR: Direct Connection to the Battery
“Pop and Click” Noise Protection Circuit
Ultra Low Current Shutdown Mode
2.2 V−5.5 V Operation
External Gain Configuration Capability
External Turn−on and Turn−off Time Configuration Capability
Up to 1.0 nF Capacitive Load Driving Capability
Thermal Overload Protection Circuitry
PIN CONNECTIONS
9−Pin Flip−Chip CSP
A1
INM
B1
VM_P
C1
BYPASS
A2
OUTA
B2
VM
C2
A3
INP
B3
V
p
C3
Typical Applications
OUTB SHUTDOWN
(Top View)
Micro8
•
Portable Electronic Devices
•
PDAs
•
Wireless Phones
SHUTDOWN
BYPASS
INP
INM
1
2
3
4
(Top View)
8
7
6
5
OUTB
VM
V
p
OUTA
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
©
Semiconductor Components Industries, LLC, 2004
1
November, 2004 − Rev. 8
Publication Order Number:
NCP2890/D
ONSEMI [ ON SEMICONDUCTOR ]
