MP2631 datasheet(2/9 Pages) MPS

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MP2631–28V, 1A LINEAR LI-ION BATTERY CHARGER WITH 10MA HIGH VOLTAGE LDO

MP2631 Rev.0.9

www.MonolithicPower.com

9/15/2008

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PACKAGE REFERENCE

TOP VIEW

SS/NC

ACOK

CHG

GND

LDO

BATT

ISET

SHDN

EXPOSED PAD

ON BACKSIDE

Part Number*

Package

Temperature

MP2631DQ

QFN10

(3mm x 3mm)

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP2631DQ–Z)

For RoHS compliant packaging, add suffix –LF

(eg. MP2631DQ–LF–Z)

ABSOLUTE MAXIMUM RATINGS (1)

IN to GND ...................................... –0.3V to 28V

All Other Pins to GND................. –0.3V to +6.5V

Junction Temperature...............................140

°C

Lead Temperature ....................................260

°C

Storage Temperature ..............–65°C to +150

°C

Recommended Operating Conditions

(2)

Nominal Supply Voltage VIN............ 3.5V to 5.5V

Operating Temperature .............–40

°C to +85°C

Thermal Resistance

(3)

θJA

θJC

3x3 QFN10 ............................. 50 ...... 12...

°C/W

Notes:

1) Exceeding these ratings may damage the device.

2) The device is not guaranteed to function outside of its

operating conditions.

3) Measured on approximately 1” square of 1 oz copper.

ELECTRICAL CHARACTERISTICS

VIN = 5.2V, VEN = 0V, TA = +25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

Input Quiescent Current

ISUPPLY

SHDN= Low, VBATT=4.25V,

ILDO = 0A, VIN ≥ 5.2V

950

µA

Battery Voltage Regulation

VBATT

T = –5°C to +75°C, IBATT = 0

4.16

4.20

4.24

LDO OUT

VOUT

Iout = 0 - 10mA, Vin = 5.0 – 6.5 V

4.85

5.0

5.15

Min LDO Output Voltage

VOUT_MIN

I=2mA, Vin=5.0V

4.85

LDO Load Regulation

Load < 10mA

0.005

V/mA

LDO Short Current Limit

OVP Threshold

Input rising

6.7

7.0

7.3

Constant Current

Regulation

ICHG

VBATT = 3.8V

RCHG = 3.3k

475

530

585

Constant Current Variation

VBATT = 3.8V,

TJ = 0°C to +120°C,

100

113

%ICHG

(4)

Trickle Current

VBATT = 2.3V

%ICHG

(4)

Trickle Threshold Voltage

VBATT rising

2.45

2.6

2.75

Trickle Voltage Hysteresis

100

IBF Threshold

IBF

In CV mode

%ICHG

OVP Threshold

OVP

Vin rising

6.7

7.3

OVP Hysteresis

400

UVLO

Vin rising

1.6

2.1

2.5

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