SMB139 Ver la hoja de datos (PDF) - Summit Microelectronics

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SMB139

Programmable Linear Battery Charger in 1.3 x 2.1 uCSP™

Summit Microelectronics 

SMB139

DC OPERATING CHARACTERISTICS (CONTINUED)

TA= -30°C to +85°C, VIN = +5.0V, VFLOAT = +4.2V unless otherwise noted. All voltages are relative to GND.

Symbol Parameter

Conditions

Min Typ Max Unit

Logic Inputs/Output

VIL

Input Low Level

VIH

Input High Level

VOL

SDA/STAT Output Low Level ISINK=3mA

600 mV

1.4

V

300 mV

IBIAS

Enable/CHGSET Input bias

current

ISINK

STAT sink current

Battery Charger

1

µA

5

mA

VTRICKLECHG

Trickle-charge to pre-charge

voltage threshold

2.0

V

ITRICKLECHG

Nominal trickle-charge

current

3

mA

VPRECHG

Pre-charge to fast-charge

voltage threshold

100mV steps

2.400

3.100 V

IPRECHG

∆IPRECHG

Nominal pre-charge current

Pre-charge current tolerance

16 steps

IPRECHG=45mA,

T=0oC to +70oC

23

90

mA

25

45

65

mA

ICHG

∆ICHG

VFLT

∆VFLT

VDO

ITERM

Nominal Fast charge current 16 steps

33

212 mA

Fast charge current tolerance ICHG=212mA, T=0oC to +70oC 185

212

237 mA

Float voltage range

20mV steps

4.020

4.400 V

Float voltage tolerance

T=+10oC to +50oC,

VFLT = 4.2V

-1

+1

%

Dropout voltage

ICHG=100mA

55

mV

Charge termination current 16 steps

10

89

mA

∆ITERM

Termination current tolerance ITERM=10mA, T=0oC to +70oC

4

10

16

mA

VRECH

Recharge threshold voltage

125

mV

ITHERM

∆ITHERM

Thermistor current

Thermistor current tolerance

3 settings

ITHERM=100µA, T=0oC to

+70oC

10

100

µA

90

100

110

µA

THI

Charge cutoff temp (high)

Adjustable, conditions per

typical application

30

65

oC

TLO

Charge cutoff temp (low)

Adjustable, conditions per

typical application

-20

15

oC

Note 1: Voltage and current accuracies are only guaranteed for factory-programmed settings. Changing the output voltage from that reflected in the

customer specific CSIR code will result in inaccuracies exceeding those specified above.

Note 2: The SMB139 device is not intended to function as a battery pack protector. Battery packs used in conjunction with this device need to provide

adequate internal protection and to comply with the corresponding battery pack specifications.

Summit Microelectronics, Inc

2121 3.0 6/19/2008

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