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MP2618 Datasheet(PDF) 4 Page - Monolithic Power Systems

Part # MP2618
Description  2A, 24V Input, 600kHz 2-3 Cell Switching Li-Ion Battery Charger With System Power Path Management
PDF  19 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2618 Datasheet(HTML) 4 Page - Monolithic Power Systems

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MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER
MP2618 Rev. 0.92
www.MonolithicPower.com
4
7/14/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 19V, TA = +25°C, CELLS=0V, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max
Units
CELLS=0V
8.337
8.4
8.463
Terminal Battery Voltage
VBATT
CELLS= Float
12.505
12.6
12.695
V
CSP, BATT Current
ICSP,IBATT Charging disabled
1
µA
Switch On Resistance
RDS(ON)
0.28
Ω
Switch Leakage
EN = 4V, V
SW = 0V
0
10
µA
CC Mode
4.1
A
Peak Current Limit
Trickle Mode
2
A
CC current
ICC
RS1=100mΩ
1.8
2.0
2.2
A
Trickle charge current
ITRICKLE
10%
Icc
Trickle charge voltage threshold
3
V/Cell
Trickle charge hysteresis
350
mV/Cell
Termination current threshold
IBF
5%
10%
15%
Icc
Oscillator Frequency
fSW
VFB = 1.2V
600
kHz
Fold-back Frequency
VFB = 0V
190
kHz
Maximum Duty Cycle
VFB = 1.2V
90
%
Maximum current Sense Voltage
(CSP to BATT)
VSENSE
170
200
230
mV
Minimum On Time
tON
VFB = 1.5V
100
ns
Under Voltage Lockout Threshold
Rising
3
3.2
3.4
V
Under Voltage Lockout Threshold
Hysteresis
200
1000
mV
Open-drain sink current
Vdrain=0.3V
5
mA
Dead-battery indication
Stay
at
trickle
charge,
CTMR=0.1µF
30
min
Termination delay
Time after IBF reached,
CTMR=0.1µF
1
Min
Recharge threshold at Vbatt
Vrechg
4.0
V/cell
Recharge Hysteresis
100
mV/Cell
RNTC=NCP18XH103 (0°C)
73
NTC Low Temp Rising Threshold
Recovery Hysteresis
3
%of
VREF33
RNTC=NCP18XH103, (50°C)
30
NTC
High
Temp
Falling
Threshold
Recovery Hysteresis
2
%of
VREF33
Vin min head-room (reverse
blocking)
Vin-Vbatt
180
mV
EN Input Low Voltage
0.4
V
EN Input High Voltage
1.8
V



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