ISL88731 View Datasheet(PDF) - Intersil

Part Name

Description

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ISL88731

SMBus Level 2 Battery Charger

Intersil 

ISL88731

Electrical Specifications

PARAMETER

DCIN = CSSP = CSSN = 18V, CSOP = CSON = 12V, VDDP = 5V, BOOT-PHASE = 5.0V, GND = PGND = 0V,

CVDDP = 1µF, IVDDP = 0mA, TA = -10°C to +100°C (Continued)

CONDITIONS

MIN

TYP

MAX UNITS

BOOT Supply Current

UGATE High

170

290

400

µA

PHASE Input Bias Current

UGATE On-Resistance Low

UGATE On-Resistance High

LGATE On-Resistance High

LGATE On-Resistance Low

Dead Time

VDCON = 28V, VCSON = VPHASE = 20V

IUGATE = -100mA (see note 4)

IUGATE = 10mA (see note 4)

ILGATE = +10mA (see note 4)

ILGATE = -100mA (see note 4)

Falling UGATE to rising LGATE or

falling LGATE to rising UGATE

0

2

µA

0.9

1.6

Ω

1.4

2.5

Ω

1.4

2.5

Ω

0.9

1.6

Ω

35

50

80

ns

ERROR AMPLIFIERS

GMV Amplifier Transconductance

200

250

300

μA/V

GMI Amplifier Transconductance

40

50

60

μA/V

GMS Amplifier Transconductance

40

50

60

μA/V

GMI/GMS Saturation Current

15

21

25

μA

GMV Saturation Current

10

17

30

μA

ICOMP, VCOMP Clamp Voltage

LOGIC LEVELS

0.25V < VICOMP, VCOMP < 3.5V

200

300

400

mV

SDA/SCL Input Low Voltage

VDDSMB = 2.7V to 5.5V

0.8

V

SDA/SCL Input High Voltage

VDDSMB = 2.7V to 5.5V

2

V

SDA/SCL Input Bias Current

VDDSMB = 2.7V to 5.5V

-1

1

µA

SDA, Output Sink Current

VSDA = 0.4V

7

15

mA

SMBus

SMB Timing Specification VDDSMB = 2.7V TO 5.5V

PARAMETERS

SYMBOL

SMBus Frequency

FSMB

Bus Free Time

TBUF

Start Condition Hold Time from SCL

THD:STA

Start Condition Setup Time from SCL

TSU:STA

Stop Condition Setup Time from SCL

TSU:STO

SDA Hold Time from SCL

THD:DAT

SDA Setup Time from SCL

TSU:DAT

SCL Low Timeout (Note 3)

TTIMEOUT

SCL Low Period

TLOW

SCL High Period

THIGH

Maximum Charging Period Without a SMBus Write to

ChargeVoltage or ChargeCurrent Register

NOTE:

3. If SCL is low for longer than the specified time, the charger is disabled.

4. Guaranteed by characterization.

CONDITIONS

MIN

TYP MAX UNITS

10

100

kHz

4.7

µs

4

µs

4.7

µs

4

µs

300

ns

250

ns

22

25

30

ms

4.7

µs

4

µs

140

180

220

s

5

FN9258.0

November 20, 2006

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