MP26023 Datasheet, PDF (1/11 Pages) Monolithic Power Systems – 28V, 1A Linear Li-Ion Battery Charger with Trickle Charge

The Future of Analog IC Technology
MP26023
28V, 1A Linear
Li-Ion Battery Charger with Trickle Charge
DESCRIPTION
The MP26023 is a linear, high-performance
single cell Li-Ion battery charger. By integrating
high voltage input protection into the charger
IC, the MP26023 can tolerate an input surge up
to 28V.
The device features constant current (CC) and
constant voltage (CV) charging modes with
programmable charge currents (85mA to 1A),
programmable battery full threshold, thermal
protection, battery temperature monitoring,
reverse current blocking and trickle charge. The
device also provides AC adapter power good
and charge status indications to the system.
MP26023 is available in 10-pin 3mm x 3mm
QFN packages.
FEATURES
• Input Surge Up to 28V
• Adapter or USB Input
• Programmable Charge Current: 85mA to 1A
• Proprietary Constant Voltage Auto Recharge
• Proprietary Over-Voltage Protection
• 0.75% V_BATT Accuracy
• <1µA Battery Reverse Current
• 90µA Standby Current from V_IN
• Battery Temperature Monitoring
• Over Current Protection
• AC Adapter Power Good Indicator
• Charge Status Indicator
• Programmable Soft-Start
• Programmable Charge Termination Current
Threshold
• Tiny 3mm x 3mm QFN Package
APPLICATIONS
• Cell Phones
• MP3 Players
• Smart Phones
• PDAs
• Digital Cameras
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
3.5V - 28V
C_IN
1uF
430Ω 430Ω
ON OFF
R1
500kΩ
R_NTC
100kΩ
1
IN
I_BATT
10
BATT
2
CHG
9
ISET
MP26023
3
ACOK
8
IBF
4
EN
7
SS
5
NTC
6
GND
+
V_BATT
_
To system
C_OUT
1uF - 22uF
C_SS
0.1uF
R_BF
20kΩ
R_CHG
2.3kΩ
MP26023 Rev.0.9
www.MonolithicPower.com
1
12/14/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.