ISL8105 datasheet(4/16 Pages) RENESAS

4 / 16 page

ISL8105, ISL8105A

FN6306 Rev 5.00

Page 4 of 16

April 15, 2010

Absolute Maximum Ratings

Thermal Information

Bias Voltage, VBIAS . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +15.0V

Boot Voltage, VBOOT. . . . . . . . . . . . . . . . . . . GND - 0.3V to +36.0V

TGATE Voltage, VTGATE . . . . . . . . . . . VLX - 0.3V to VBOOT + 0.3V

BGATE/BSOC Voltage, VBGATE/BSOC . .GND - 0.3 to VBIAS + 0.3V

LX Voltage, VLX . . . . . . . . . . . . . . . . . .GND - 0.3V to VBOOT + 0.3V

Upper Driver Supply Voltage, VBOOT - VLX . . . . . . . . . . . . . . . .15V

Clamp Voltage, VBOOT - VBIAS. . . . . . . . . . . . . . . . . . . . . . . . . .24V

FB, COMP/EN Voltage . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6V

Thermal Resistance

JA (°C/W)

JC (°C/W)

SOIC Package (Note 1) . . . . . . . . . . . .

N/A

DFN Package (Notes 1, 2) . . . . . . . . . .

5.5

Maximum Junction Temperature

(Plastic Package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C

Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C

Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

Recommended Operating Conditions

Bias Voltage, VBIAS . . . . . +5V ±10%, +12V ±20%, or 6.5V to 14.4V

Ambient Temperature Range

ISL8105C, ISL8105AC . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

ISL8105I, ISL8105AI. . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and

result in failures not covered by warranty.

NOTES:

JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See

Tech Brief TB379.

2. For

JC, the “case temp” location is the center of the exposed metal pad on the package underside.

Electrical Specifications

Recommended Operating Conditions, Unless Otherwise Noted. Parameters with MIN and/or MAX limits are

100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are

not production tested.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

INPUT SUPPLY CURRENTS

Shutdown VBIAS Supply Current

IVBIAS_S

VBIAS = 12V; Disabled

5.2

DISABLE

Disable Threshold (COMP/EN pin)

VDISABLE

0.375

0.4

0.425

OSCILLATOR

Nominal Frequency Range

fOSC

ISL8105C

270

300

330

kHz

ISL8105I

240

300

330

kHz

fOSC

ISL8105AC

540

600

660

kHz

ISL8105AI

510

600

660

kHz

Ramp Amplitude (Note 3)

VOSC

1.5

VP-P

POWER-ON RESET

Rising VBIAS Threshold

VPOR_R

3.9

4.1

4.3

VBIAS POR Threshold Hysteresis

VPOR_H

0.30

0.35

0.40

REFERENCE

Nominal Reference Voltage

VREF

0.6

Reference Voltage Tolerance

ISL8105C (0°C to +70°C)

-1.0

+1.0

ISL8105I (-40°C to +85°C)

-1.5

+1.5

ERROR AMPLIFIER

DC Gain (Note 3)

GAINDC

Unity Gain-Bandwidth (Note 3)

UGBW

MHz

Slew Rate (Note 3)

V/µs

GATE DRIVERS

TGATE Source Resistance

RTG-SRCh

VBIAS = 14.5V, 50mA Source Current

3.0



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