NCP1800
Single−Cell Lithium Ion
Battery Charge Controller
The NCP1800 is a constant current, constant voltage (CCCV)
lithium ion battery charge controller. The external sense resistor sets
the full charging current, and the termination current is 10% of the
Full−Charge current (0.1 C). The voltage is regulated at
±1%
during
the final charge stage. There is virtually zero drain on the battery when
the input power is removed.
Features
http://onsemi.com
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8
1
Pb−Free Package is Available
Integrated Voltage and Programmable Current Regulation
Integrated Cell Conditioning for Deeply Discharged Cell
Integrated End of Charge Detection
Better than 1% Voltage Regulation
Charger Status Output for LED or Host Processor Interface
Charge Interrupt Input
Safety Shutoff for Removal of Battery
Adjustable Charge Current Limit
Input Over and Undervoltage Lockout
Micro8t Package
Micro8t
CASE 846A
DM SUFFIX
PIN CONNECTIONS AND
MARKING DIAGRAM
ISNS
ISEL
COMP/DIS
GND
1
180X
AYW
2
3
4
8
7
6
5
OUT
V
CC
CFLG
VSNS
Applications
•
Cellular Phones, PDAs
•
Handheld Equipment
•
Battery Operated Portable Devices
PMOS/Schottky (FETKYt): NTHD4P02FT1 (ChipFETt)
PMOS: NTGS3441T1 (TSOP 6)
Schottky: MBRM130L
R
SNS
V
in
X = A for 41 Device
B for 42 Device
A = Assembly Location
Y = Year
W = Work Week
ORDERING INFORMATION
Device
NCP1800DM41R2
NCP1800DM42R2
NCP1800DM41R2G
OUT
V
CC
ISNS
NCP1800
VSNS
Host or LED
Host
Processor
CFLG
COMP/
DIS
R
COMP
C
in
GND
Package
Micro8
Micro8
Micro8
(Pb−Free)
Shipping
†
4000 Units/Reel
4000 Units/Reel
4000 Units/Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
ISEL
R
ISEL
60 k
C
out
C
COMP
R
COMP
= 15
W,
C
COMP
= 560 nF
Figure 1. Typical Application
©
Semiconductor Components Industries, LLC, 2004
1
November, 2004 − Rev. 5
Publication Order Number:
NCP1800/D
ONSEMI [ ON SEMICONDUCTOR ]
