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MP2610ER-LF-P

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
MP2610 – 2A, 24V INPUT, 1.1MHz 1-2CELL SWITCHING LI-ION BATTERY CHARGER
MP2610 Rev. 0.91 www.MonolithicPower.com 4
7/13/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
V
IN
= 19V, T
A
= +25°C, CELLS=0V, unless otherwise noted.
Parameters Symbol Condition Min Typ Max Units
EN =4V
0.16 mA
Supply Current (Shutdown)
EN =4V,
Consider VREF33
pin output current.
R
3
=10k, R
NTC
=10k
0.32 mA
Supply Current (Quiescent)
EN =0V, CELLS=0V
2.0 mA
EN Input Low Voltage
0.4 V
EN Input High Voltage
1.8 V
EN
=4V
4
EN Input Current
EN
=0V
0.2
A
Thermal Shutdown 150 °C
VREF25 output voltage 2.5 V
VREF33 output voltage 3.3 V
VREF33 load regulation I
LOAD
=0 to 10mA 30 50 mV
MP2610 – 2A, 24V INPUT, 1.1MHz 1-2CELL SWITCHING LI-ION BATTERY CHARGER
MP2610 Rev. 0.91 www.MonolithicPower.com 5
7/13/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
PIN FUNCTIONS
Pin # Name Description
1 NTC
Thermistor Input. Connect a resistor from this pin to the pin VREF33 and the Thermistor
from this pin to ground.
2
ACOK
Valid Input Supply Indicator. A logic LOW on this pin indicates the presence of a valid
input supply.
3
CHGOK
Charging Completion Indicator. A logic LOW indicates charging operation. The pin will
become an open drain once the charging is completed or suspended.
4 VREF33
Internal linear regulator 3.3V reference output. Bypass to GND with a 1F ceramic
capacitor.
5 VREF25 Internal linear regulator 2.5V reference output.
6
EN
On/Off Control Input.
7 CELLS
Command Input for the Number of Li-Ion Cells. Connect this pin to VREF33 for 2-cell
operation or ground the pin for 1-cell operation. Do not leave this pin float.
8 COMPV V-LOOP Compensation. Connect this pin with a capacitor and a resistor.
9 COMPI I-LOOP Compensation. Connect this pin with a capacitor and a resistor.
10 BATT Positive Battery Terminal.
11 CSP
Battery Current Sense Positive Input. Connect a resistor RS1 between CSP and BATT.
The full charge current is:
()
()
mRS1
200mV
AI
CHG
=
.
12
GND,
Exposed
Pad
Ground. This pin is the voltage reference for the regulated output voltage. For this reason
care must be taken in its layout. This node should be placed outside of the switching
diode (D2) to the input ground path to prevent switching current spikes from inducing
voltage noise into the part. Connect exposed pad to ground plane for optional thermal
performance.
13 TMR Set time constant. 0.1A current charges and discharges the external cap.
14 BST
Bootstrap. This capacitor is needed to drive the power switch’s gate above the supply
voltage. It is connected between SW and BS pins to form a floating supply across the
power switch driver.
15 SW Switch Output.
16 IN
Supply Voltage. The MP2610 operates from a 5V to 24V unregulated input to charge 1~2
cell li-ion battery. Capacitor is needed to prevent large voltage spikes from appearing at
the input.
MP2610 – 2A, 24V INPUT, 1.1MHz 1-2CELL SWITCHING LI-ION BATTERY CHARGER
MP2610 Rev. 0.91 www.MonolithicPower.com 6
7/13/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
=19V, C1=4.7uF, C2=22uF, L=4.7uH, RS1=100mΩ, Real Battery Load, T
A
=25ºC, unless
otherwise noted.
4
4.02
4.04
4.06
4.08
4.1
4.12
4.14
4.16
4.18
4.2
0 10203040506070
0
0.5
1
1.5
2
2.5
0
0.5
1
1.5
2
2.5
BATTERY VOLTAGE(V)
BATTERY VOLTAGE(V)
BATTERY CURRENT(A)
BATTERY CURRENT(A)
CHARGE CURRENT(A)
CHARGE CURRENT(A)
1-Cell Battery Charge Curve
2-Cell Battery Charge Curve
TIMES(MIN)
TIMES(MIN)
BATTERY VOLTAGE(V)
BATTERY VOLTAGE(V)
V
BATT
V
BATT
I
BATT
I
BATT
0
0.5
1
1.5
2
2.5
0
0.5
1
1.5
2
2.5
0
BATT Float Voltage vs. V
IN
V
IN
(V)
V
IN
(V)
V
IN
(V)
I
CHG
(A)
I
CHG
(A)
V
BATT
(V)
Efficiency vs. V
CHG
2-Cell, V
BATT
=8.4V, CC Load
Efficiency vs. V
CHG
2-Cell, V
BATT
=7.4V, CC Load
Efficiency vs. I
CHG
1-Cell, V
BATT
=4.2V, CC Load
EFFICIENCY (%)
EFFICIENCY (%)EFFICIENCY (%)
NTC Control Window
0
0.5
1
1.5
2
2.5
3
81216202428
VNTC(V)
12345
7.2
7.4
7.6
7.8
8
8.4
8.2
8.6
0 50 100 150 200
0246810
1-cell Charge Current
vs. Battery Voltage
2-cell Charge Current
vs. Battery Voltage
Low Temp Off
High Temp Off
High Temp On
Low Temp On
50
60
70
80
90
100
0 0.4 0.8 1.2 1.6 2
50
60
70
80
90
100
0 0.4 0.8 1.2 1.6 2
V
IN
=12V
V
IN
=19V
V
IN
=24V
V
IN
=12V
V
IN
=24V
V
IN
=19V
0
1.0
2.0
3.0
4.0
5.0
510152025
80
83
86
89
92
95
510152025
1Cell Battery
V
IN
=19V
V
IN
=24V
V
IN
=12V
V
IN
=19 V
V
IN
=24V
V
IN
=12V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MP2610ER-LF-P

Mfr. #:
Buy MP2610ER-LF-P
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Battery Management 2A 2-1 Cell Switchin Li-lon Charger
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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