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MP2676EG-LF-Z

P1-P3P4-P6P7-P9P10-P10
MP2676
Li-Ion Charger Protection IC
With Integrated P-MOSFET
MP2676 Rev. 0.91 www.MonolithicPower.com 1
12/7/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP2676 is a highly integrated circuit
designed to provide complete Li-ion battery
charger protection against input over voltage,
input over current and battery over voltage. The
IC continuously monitors the input voltage, the
input current and the battery voltage, when any
of the monitored parameters exceeds its
threshold, the IC immediately turns off the
internal N-channel MOSFET to remove the
power from the charge system before any
damage occurs. Moreover, all protections also
have blanking times against false triggering due
to voltage spikes or current transients. The IC
also features thermal shutdown protection, if
the temperature exceeds 140ºC, MP2676 will
turn off the internal MOSFET bridging ACIN and
CHRIN.
MP2676 integrates a P-channel MOSFET with
the body diode reverse protection to replace the
external P-channel MOSFET and blocking
diode for charge function of portable devices
with PMIC (Power Management IC). The above
features and small package make the MP2676
an ideal part for portable applications.
FEATURES
• No External Blocking Diode Requiring
• Input Over Voltage Protection in 1µs
• Input Over Current Protection
• Battery Over Voltage Protection
• Integrated Charging MOSFET
• Temperature Monitoring and Protection
• High Immunity of False Triggering under
Startup, Transients
APPLICATIONS
• Cell Phones
• MP3 Players
• Smart Phones
• PDAs
• Digital Cameras
• Desktop Chargers
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP2676 –LI-ION CHARGER PROTECTION IC WITH INTEGRATED P-MOSFET
MP2676 Rev. 0.91 www.MonolithicPower.com 2
12/7/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking Free Air Temperature (T
A
)
MP2676EG QFN8 (2mm x 2mm) 8Q
-20°C to +85°C
* For Tape & Reel, add suffix –Z (e.g. MP2676EG–Z)
For RoHS compliant packaging, add suffix –LF (e.g. MP2676EG–LF–Z)
PACKAGE REFERENCE
TOP VIEW
ACIN
ACIN
GND
VBAT
1
2
3
4
OUT
OUT
CHRIN
GATDRV
8
7
6
5
ABSOLUTE MAXIMUM RATINGS
(1)
ACIN
to GND ................................... -0.3V to 30V
OUT, GATDRV and CHRIN to GND
.......................................................... -0.3V to 7V
VBAT ............................................. -0.3V to 5.5V
Continuous Power Dissipation (T
A
= +25°C)
(2)
QFN8 (2mm x 2mm) ................................ 1.25W
Junction Temperature ............................... 150°C
Storage Temperature ............... -65°C to +150°C
Lead Temperature ................................... 260°C
Recommended Operating Conditions
(3)
Supply Voltage V
IN
.......................... 4.3V to 5.5V
Operating Junct. Temp (T
J
) ...... -20°C to +125°C
Thermal Resistance
(4)
θ
JA
θ
JC
QFN8 (2mm x 2mm) .............. 100 ......55... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX)=(T
J
(MAX)-
T
A
)/
JA
. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MP2676 –LI-ION CHARGER PROTECTION IC WITH INTEGRATED P-MOSFET
MP2676 Rev. 0.91 www.MonolithicPower.com 3
12/7/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
Typical values at V
IN
= 5V, T
A
= +25°C, unless otherwise noted.
Parameter Symbol Condition Min Typ Max Units
Rising V
IN
Threshold UVLO 2.5 2.65 2.8 V
POR Hysteresis 130 mV
Input Power On Blanking time T
REC
(
vout
)
V
ACIN
Rising to V
OUT
Rising 10 ms
Operating Current I
IN
No Load on OUT and CHRIN pin 500 600 µA
Reverse Current
ACIN Float,
GATDRV = OUT = 7V
1 10 µA
Input Over Voltage Protection
(OVP)
V
OVP
5.8 6.0 6.25 V
Input OVP Hysteresis 35 mV
Input OVP Falling Threshold 5.75 V
Input OVP Propagation Delay 1 µs
IOVP Recovery Time T
REC
(
IOVP
)
10 ms
Over Current Protection I
OCP
1.3 1.6 2 A
OCP Blanking Time 180 µs
Battery Over Voltage Protection
Threshold
4.25 4.35 4.475 V
BOVP Hysteresis 240 mV
BOVP Falling Threshold 4 4.12 4.2 V
Battery OVP Blanking Time 200 µs
OTP Rising Threshold 140
°C
OTP Hysteresis 20
°C
ACIN to OUT On Resistance R
ON
I
IN
=500mA, 4.3V < ACIN < 5.5V 450 m
P1-P3P4-P6P7-P9P10-P10

MP2676EG-LF-Z

Mfr. #:
Buy MP2676EG-LF-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Battery Management Li-ion Battery Charg Protection Circuit
Lifecycle:
New from this manufacturer.
Delivery:
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