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PDF LP8501 Data sheet ( Hoja de datos )
| Número de pieza | LP8501 | |
| Descripción | Advanced 1A Lithium-Ion Linear Battery Charger | |
| Fabricantes | Power | |
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LP8501
Advanced 1A Lithium-Ion
General Description
The LP8501 is a single Lithium-Ion (Li-Ion) linear
charge management controller for use in cost
sensitive and portable applications. It combines
high accuracy constant-current and constant-
voltage regulation, cell preconditioning, tempera
ture monitoring, automatic charge termination,
charge-status indication, in a space-saving MSOP-8
package.
The LP8501 applies a constant current up to 1A to
the battery and the charge current can be
programmed externally with a sense-resistor.
The LP8501 automatically terminates the charge
cycle when the charge current drops to the charge
termination threshold (ITERM) after the
charge-regulation voltage is reached. When the
input supply is removed, the LP8501 automatically
enters a low-power sleep mode, dropping the
battery drain current to less than 1µA. A battery
charge state output pin is provided to indicate
Programmable Charge Current up to 1A 4.5V-7V
Input Voltage Range Ideal for Single Cell (4.1V or
4.2V) Li-Ion or Li-Pol Batteries. Preset Charge
Voltage with ±1% Accuracy Constant-Current/
Constant Voltage Operation Preconditioning of Low
Voltage Cells Optional Cell-Temperature Monitoring
Before and During Charge Charge Status Indication
Automatic Battery Recharge Charge Termination by
Minimum Current Automatic Low-Power Sleep
Mode When Input Power is Removed Available in
MSOP-8 Package RoHS Compliant and 100% Lead
(Pb)-Free battery charge status through a display
LED.
Pin Configurations
Linear Battery Charger
Features
Ideal for Single Cell (4.1V or 4.2V) Li-Ion or
Li-Pol Batteries
4.5V-7V Input Voltage Range
Programmable Charge Current up to 1A
Precharge Constant-Current/Constant Voltage
mode
Automatic Low-Power Sleep Mode
Automatic Battery Recharge Charge
Termination by Minimum Current
Optional Cell-Temperature Monitoring Before
and During Charge
Charge status through a display LED
Automatic Low-Power Sleep Mode When Input
Power is Removed
Applications
Portable Media Players/MP3 players
Cellular and Smart mobile phone
PDA
DSC
Ordering Information
LP8501 - □ □ □ □ □
F:PB-Free
Package
MS:MSOP-8
Output Type
41: 4.1V
42: 4.2V
Marking Information
RoHS compliant and compatible
with the current require ments of
IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free
soldering processes.
LP8501-datasheet Nov.-2003
1-1
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
LP8501
Electrical Characteristics
Symbol
Parameter
I(VCC)
VCC current
I(VCCS)
VCC Sleep current
IIB(BAT)
Input bias current on BAT pin
IIB(SNS)
Input bias current on SNS pin
IIB(TS)
Input bias current on TS pin
IIB(PI)
Input bias current on PI pin
Battery Voltage Regulation
VO(REG)
Output voltage
V(SNS)
Current regulation threshold
Charge Termination Detection
I(TERM)
Charge termination current
detect threshold
Temperature Comparator
V(TS1)
Lower temperature threshold
V(TS2)
Upper temperature threshold
Precharge Comparator
V(min)
Precharge threshold
Precharge Current Regulation
I(PRECHG)
Precharge current regulation
Conditions
VCC=5V VCC(min),
Excluding external
loads
V(BAT) ≥ V(min),
V(BAT)-VCC ≥ 0.8V
V(BAT)=V(REG)
V(SNS)=5V
V(TS)=5V
V(PI)=5V
LP8501
Min. Typ. Max.
0.6 1
26
1
1
1
1
Unit
mA
µA
µA
µA
µA
µA
LP8501-41
LP8501-42
4.059 4.10
4.158 4.20
Voltage at pin SNS,
relative to VCC
198
220
4.141
V
4.242
242 mV
Voltage at pin SNS,
relative to VCC 0°C
≤ TA ≤ 50°C
-25
-15
-5
mV
TS pin voltage
29 30
58 60
31
%VCC
62
LP8501-4.1MSF
LP8501-4.2MSF
2.94 3
3.04 3.1
3.06
3.16 V
Voltage at pin SNS,
relative to VCC
0°C ≤ TA ≤ 50°C
Voltage at pin SNS,
relative to VCC
0°C ≤ TA ≤ 50°C ,
VCC=5V
5
15 mV
15 25 mV
LP8501-datasheet Nov.-2003
5-5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
LP8501
LP8501-datasheet Nov.-2003
11-11
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LP8501.PDF ] | |
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