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MP26075EQ-41-LF-P

P1-P3P4-P6P7-P9P10-P12
MP26075 – HIGH EFFICIENCY CRADLE CHARGER
MP26075 Rev. 1.01 www.MonolithicPower.com 4
5/23/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
PIN FUNCTIONS
Pin # Name Description
1 VIN Input Supply Pin. Decoupling Capacitor is needed to prevent large voltage spikes.
2 LED-G
Open-Drain Charge status Indicator. This pin is high during charge and fault condition, is low
after battery full or termination.
3 LED-R
Open-Drain Charge status Indicator. This pin is low during charge, is high after battery full or
termination and fault condition.
4 TMR
Pin of the oscillator. Connect a capacitor from this pin to GND to set the oscillator cycle. Timer
setting time changes according to oscillation cycle.
5 GND GND pin.
6 COM Compensation for VIN limits circuit.
7 CTL
CTL is used for VIN control. Connect to the cathode of photo diode of photo coupler by a
resistor.
8 ISET Connect a resistor R between ISET and GND of Battery Pack to set the charge current.
9 NTC
Battery temperature monitoring pin. Connect a resistor from this pin to VIN and connect this pin
to the thermistor pin of the battery pack.
10 BATT Charger Output terminal.
MP26075 – HIGH EFFICIENCY CRADLE CHARGER
MP26075 Rev. 1.01 www.MonolithicPower.com 5
5/23/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
Test with AC_IN=220V flyback, C
IN
= 4.7μF, C
OUT
= 10μF, I
CHG
= 1000mA, unless otherwise noted.
V
IN
&V
BATT
(V)
V
IN
(V)
0
1
2
3
4
5
6
0 102030405060
TIME(Min)
0
0.2
0.4
0.6
0.8
1
1.2
I
BATT
(A)
I
BATT
(mA)
I
BATT
(uA)
I
CHG
(mA)
Battery Current
Input Voltage
Battery Voltage
Real Battery Charge Curve
Charge Current vs
Battery Voltage
0
200
400
600
800
1000
1200
1.5 2 2.5 3 3.5 4 4.5
V
BATT
(V) V
BATT
(V)
V
BATT
(V)
I
CHG
=1000mA
I
CHG
=600mA
I
CHG
=300mA
Charge Input Voltage vs
Battery Voltage
1.5 2 2.5 3 3.5 4 4.5
Battery Reverse Current
I
BATT
vs V
BATT
Curve
V
IN
=GND, Power Source on BATT
0
0.02
0.04
0.06
0.08
0.1
0.12
012345
R
CHG
vs. I
CHG
Curve
Constant Current charge,
V
BATT
=3.8V
0
200
400
600
800
1000
1200
0246810
I
BATT
(mA)
0.5
0.51
0.52
0.53
0.54
0.55
0.56
0.57
0.58
0.59
0.6
0.61
CC Charge Current
vs. Temp
Constant Current charge ,
V
BATT
=3.8V
I
BATT
(mA)
CC Charge Current vs.
Temp Zoom In
The junction temperature is too high.
Part enters thermal foldback mode
0
20
40
60
80
100
120
0246810
I
CHG
(mA)
R
CHG
vs. I
CHG
Curve
Trickle charge, V
BATT
=2.4V
3
3.5
4
4.5
5
5.5
20 40 60 80 100 120 140
-40
-10
20
50
80
110
140
700 800 900 1000 1100 1200
60
80
100
120
140
700 800 900 1000 1100 1200
T
J
T
A
T
J
T
A
MP26075 – HIGH EFFICIENCY CRADLE CHARGER
MP26075 Rev. 1.01 www.MonolithicPower.com 6
5/23/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Test with AC_IN=220V flyback, C
IN_CHARGER
= 4.7μF, C
OUT_CHARGER
= 10μF, I
CHG
= 1000mA, unless
otherwise noted.
V
BATT
2V/div.
V
IN
2V/div.
I
BATT
500mA/div.
V
BATT
2V/div.
V
NTC
2V/div.
V
IN
2V/div.
I
BATT
1A/div.
V
BATT
2V/div.
V
BATT
2V/div.
V
IN
2V/div.
I
BATT
500mA/div.
V
BATT
2V/div.
V
IN
2V/div.
I
BATT
500mA/div.
V
BATT
2V/div.
V
TMR
500mV/div.
V
IN
2V/div.
I
BATT
50mA/div.
LED-R
2V/div.
LED-G
2V/div.
I
BATT
200mA/div.
40 v.
Input Power Start Up
Real Battery, V
BATT
=3.8V
2s/div.
Input Power Shut Down
Real Battery, V
BATT
=3.8V
10 s/div.
Auto Re-charge
Battery Float
v.
NTC Window Control
V
BATT
=3.8V,
CV Load V
NTC
from 0V to 2.5V
100 s/div.
Input OVP Entry
Open flyback Loop,
V
BATT
=3.8V, V
IN
from 5V to 7V
v.
Timer Out
V
BATT
=2.1V, C
TMR
=100pF
P1-P3P4-P6P7-P9P10-P12

MP26075EQ-41-LF-P

Mfr. #:
Buy MP26075EQ-41-LF-P
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Battery Management 1A Cradle Charger w/ 4.1V Batt Voltage
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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