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MP26028 Datasheet(PDF) 3 Page - Monolithic Power Systems

Part # MP26028
Description  1A Linear Li-Ion Battery Charger with Trickle Charge
PDF  11 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP26028 Datasheet(HTML) 3 Page - Monolithic Power Systems

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MP26028 – 1A LINEAR LI-ION BATTERY CHARGER WITH TRICKLE CHARGE
MP26028 Rev.1.01
www.MonolithicPower.com
3
10/28/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 5V, VEN = 0V, TA = +25C, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
Max
Units
EN
= High
40
Supply Current
ISUPPLY
EN
= Low, ICHG = 0A
500
Over Input Voltage Protection
OVP
VIN Rise
6.8
7.0
7.2
V
OVP Hysteresis
400
mV
Maximum input voltage
DC
Leakage < 500µA
20
V
TA = +25°C, IBATT = 0
4.179
4.20
4.221
V
Battery Voltage Regulation
VBATT
TA = -5°C to +75°C, IBATT = 0
4.158
4.20
4.242
V
Battery Over-Voltage
Protection
IBATT_OVP VBATT = 4.25V
0
µA
Constant Current Regulation
ICHG
VIN = 5V, VBATT = 3.8V
RCHG = 3.3kΩ
450
515
580
mA
Constant Current Variation
VIN = 5V, VBATT = 3.8V,
TJ = 0°C to +120°C,
RCHG = 1.6kΩ to 8.0kΩ
87
100
113
%ICHG
(5)
Trickle Current
VIN = 5V, VBATT = 2.3V
5
10
15
%ICHG
(5)
Trickle Threshold Voltage
2.45
2.6
2.75
V
Trickle Voltage Hysteresis
100
mV
Battery Full Programming
Range
IBF
Refer to Operation section for
programming IBF
10
50
%ICHG
(5)
IBF Accuracy
75
125
%IBF
(6)
SS Pin Voltage
CSS = 0.1uF, VBATT = 3.6V
1.19
1.23
1.27
V
Input
ACOK Up Range
6.8
7.0
7.2
V
Input ACOK Low Range
1.8
2.5
3.2
V
EN
Trip Threshold High
2.4
V
EN
Trip Threshold Low
0.4
V
CHG , ACOK Sink Current
Pin Voltage = 0.4V
8
mA
Battery Reverse Current to
BATT Pin
EN
= Low and Input =
Floating or 0V
1
µA
Switch-On Resistance
RON
VBATT = 3.8V, IBATT = 300mA,
RCHG = 1.7kΩ
0.35
Ω
Soft Thermal Shutdown
Threshold
105
120
135
°C
Soft Thermal Shutdown
Hysteresis
10
°C
Soft-Start Time
From trickle to 90% of full
current, CSS = 0.1µF
10
20
35
ms
Notes:
5) ICHG is the target preprogrammed charge current (Die temperature below 110°C).
6) IBF is the target preprogrammed battery full current threshold.



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