MP2619 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER

MP2619 Rev. 1.01

www.MonolithicPower.com

4

5/28/2015

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ELECTRICAL CHARACTERISTICS

Parameters

Symbol Condition

Min

Typ

Max

Units

CELLS=0V

8.337

8.4

8.463

Terminal Battery Voltage

CELLS= Float

12.505

12.6

12.695

V

CSP, BATT Current

1

µA

Switch On Resistance

0.2

Ω

Switch Leakage

0

1

μA

CC Mode

4.1

A

Peak Current Limit

Trickle Mode

2

A

CC current

RS1=100mΩ

1.8

2.0

2.2

A

Trickle charge current

10%

Icc

Trickle charge voltage threshold

3.0

V/Cell

Trickle charge hysteresis

350

mV/Cell

Termination current threshold

5%

10%

15%

Icc

Oscillator Frequency

CELLS=0V,

600

kHz

Fold-back Frequency

190

kHz

Maximum Duty Cycle

90

%

Maximum current Sense Voltage

(CSP to BATT)

170

200

230

mV

Under Voltage Lockout Threshold

Rising

3

3.2

3.4

V

Under Voltage Lockout Threshold

Hysteresis

200

1000

mV

Open-drain sink current

Vdrain=0.3V

5

mA

Dead-battery indicator

Stay at trickle charge,

30

min

Recharge threshold at Vbatt

Vrechg

4.0

V/cell

Recharge Hysteresis

100

mV/Cell

NTC Low-Temp Rising Threshold

0°C

70.5

73.5

76.5

%of

VREF33

NTC High-Temp Falling Threshold

50°C

27.5

29.5

31.5

%of

VREF33

Vin min head-room (reverse blocking)

Vin-Vbatt

180

mV

0.4

V

1.8

V

4

0.2

μA