MP2605 – 28V, 1A LINEAR BATTERY CHARGER WITH TRICKLE CHARGE AND TIMER

MP2605 Rev. 0.94

www.MonolithicPower.com

3

1/25/2010

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ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

SHDN = High

40

µA

Supply Current

SHDN= Low, ICHG = 0A,

200

µA

Battery Voltage Regulation

4.16

4.20

4.24

V

Constant Current Regulation

448

515

582

mA

Constant Current Variation

87

100

113

(4)

End of Charge Threshold

20

(4)

Trickle Current

5

10

15

(4)

Trickle Threshold Voltage

2.45

2.6

2.75

V

Trickle Voltage Hysteresis

100

mV

Input ACOK Up Range

6.7

7

7.3

V

Input ACOK Low Range

1.5

2

2.5

V

ACOK

and

CHG Over-

voltage Clamp

8.2

V

Input

Over

Voltage

Protection

OVP

6.7

7

7.3

V

OVP Hysteresis

400

mV

SHDN Trip Threshold High

2.6

V

SHDN Trip Threshold Low

0.4

V

SHDN Pull up Current

ISHDN

VSHDN=3V

6

µA

CHG , ACOK Sink Current

Pin Voltage = 0.4V

8

mA

Battery Reverse Current to

BATT Pin

SHDN = Low and Input =

Floating or 0V

1

µA

Dropout voltage

VIN-VBATT

VBATT = 3.8V, RCHG =

6kΩ. Current drop 10%

0.25

V

Die temperature Limit

105

120

135

°C

Recharge Voltage Threshold VRECHARGE

3.9

4.0

4.1

V

Recharge Voltage hysteresis

100

mV

R_NTC at 0°C

Note: R_NTC is 100k at 25°C

R_NTC=TH11-4H104F

376.6

kΩ

R_NTC at 50°C

Note: R_NTC is 100k at 25°C

R_NTC=TH11-4H104F

32.3

kΩ