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| NCP1800 Datasheet, PDF (1/14 Pages) ON Semiconductor – Single-Cell Lithium Ion Battery Charge Controller | |||
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NCP1800
SingleâCell 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
⢠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 Under Voltage Lockout
⢠Micro8 Package
Applications
⢠Cellular Phones, PDAs
⢠Handheld Equipment
⢠Battery Operated Portable Devices
PMOS/Schottky (FETKYt): NTHD4P02FT1 (ChipFETt)
PMOS: NTGS3441T1 (TSOP 6)
Schottky: MBRM130L
RSNS
Vin
Host or LED
Host
Processor
OUT
VCC
ISNS
NCP1800
VSNS
CFLG
COMP/
DIS
ISEL
Cin
GND
RCOMP
CCOMP
RISEL
60 k
RCOMP = 15 W, CCOMP = 560 nF
Cout
http://onsemi.com
8
1
Micro8t
CASE 846A
DM SUFFIX
PIN CONNECTIONS AND
MARKING DIAGRAM
ISNS 1
ISEL 2
COMP/DIS 3
GND 4
8 OUT
7 VCC
6 CFLG
5 VSNS
X = A for 41 Device
B for 42 Device
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
ORDERING INFORMATION
Device
Package
Shipping
NCP1800DM41R2 Micro8 4000 Units/Reel
NCP1800DM42R2 Micro8 4000 Units/Reel
Figure 1. Typical Application
© Semiconductor Components Industries, LLC, 2003
1
May, 2003 - Rev. 4
Publication Order Number:
NCP1800/D
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