5

FN9202.2

May 10, 2006

ADAPTER CURRENT LIMIT THRESHOLD

CSIP to CSIN Full-Scale Current Sense

Voltage

ACLIM = VREF

97

100

103

mV

ACLIM = Float

72

75

78

mV

ACLIM = GND

47

50

53

mV

ACLIM Input Bias Current

ACLIM = VREF

10

16

20

µA

ACLIM = GND

-20

-16

-10

µA

VOLTAGE REGULATION ERROR AMPLIFIER

Error Amplifier Transconductance from

CSON to VCOMP

CELLS = VDD

30

µA/V

CURRENT REGULATION ERROR AMPLIFIER

Charging Current Error Amplifier

Transconductance

50

µA/V

Adapter Current Error Amplifier

Transconductance

50

µA/V

BATTERY CELL SELECTOR

CELLS Input Voltage for 4 Cell Select

4.3

V

CELLS Input Voltage for 3 Cell Select

2V

CELLS Input Voltage for 2 Cell Select

2.1

4.2

V

LOGIC INTERFACE

EN Input Voltage Range

0

VDD

V

EN Threshold Voltage

Rising

1.030

1.06

1.100

V

Falling

0.985

1.000

1.025

V

Hysteresis

30

60

90

mV

EN Input Bias Current

EN = 2.5V

1.8

2.0

2.2

µA

ACPRN Sink Current

ACPRN = 0.4V

3

8

11

mA

ACPRN Leakage Current

ACPRN = 5V

-0.5

0.5

µA

ICM Output Accuracy

(Vicm = 19.9 x (Vcsip-Vcsin))

CSIP - CSIN = 100mV

-3

0

+3

%

CSIP - CSIN = 75mV

-4

0

+4

%

CSIP - CSIN = 50mV

-5

0

+5

%

Thermal Shutdown Temperature

150

°C

Thermal Shutdown Temperature

Hysteresis

25

°C

NOTE:

7. This is the sum of currents in these pins (CSIP, CSIN, BOOT, UGATE, PHASE, CSOP, CSON) all tied to 16.8V. No current in pins EN, ACSET,

VADJ, CELLS, ACLIM, CHLIM.

Electrical Specifications

DCIN = CSIP = CSIN = 18V, CSOP = CSON = 12V, ACSET = 1.5V, ACLIM = VREF, VADJ = Floating,

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

ISL6251, ISL6251A