MP2618 MPS, MP2618 Datasheet - Page 4

• Manufacturer Part Number: MP2618
• Description: 2a, 24v Input, 600khz 2-3 Cell Switching Li-ion Battery Charger With System Power Path Management
• Manufacturer: MPS

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