ISL97701 datasheet(3/11 Pages) RENESAS

3 / 11 page

ISL97701

FN6474 Rev 1.00

Page 3 of 11

February 22, 2008

Absolute Maximum Ratings (TA = +25°C)

Thermal Information

VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V

VOUT to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 31V

LX to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VOUT + 1V

VDDOUT, NSYNC, FB, NEN

to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VDD + 0.3V

Continuous Current in VDD, GND, VDDOUT, LX . . . . . . . . . 650mA

Continuous Current in NSYNC, FB, NEN . . . . . . . . . . . . . . . . 10mA

Thermal Resistance (Typical, Notes 1, 2)

JA (°C/W) JC (°C/W)

10 Ld 3x3 DFN Package . . . . . . . . . . .

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

Ambient Operating Temperature (TA) . . . . . . . . . . . .-40°C to +85°C

Operating Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . +125°C

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +130°C

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

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

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

VDD = 3.6V, GND = NEN = 0V, NSYNC = VDD, R1 = 390k, R2 = 39k, L = 10µH, TA = -40°C to +85°C unless

otherwise stated.

PARAMETER

DESCRIPTION

CONDITION

MIN

TYP

MAX

UNIT

SUPPLY

VDD

Supply Operating Voltage Range

2.3

5.5

IDIS

Supply Current when Disabled

NEN = VDD

0.1

µA

LOGIC INPUTS – NEN, NSYNC

RUP

Pull-up Resistor

Enabled, Input at GND

150

250

350



IIL

Leakage Current when Disabled

Disabled, Input at GND

-1

µA

VHI

Logic High Threshold

1.8

VLO

Logic Low Threshold

0.7

POWER-ON RESET – VDD

VRES_ON

Power-On Reset Threshold

VDD rising

2.2

2.3

VRES_OFF

Power-Off Threshold

VDD falling

1.9

LX OUTPUT DRIVER

fOSC

LX Switching Frequency with Internal

Oscillator

0.9

1.1

MHz

fSYNC

LX Switching Frequency when

Externally Synchronized at NSYNC

(NSYNC)

tON-MIN

Minimum On-Time

FB = 0V, I(LX) > Ilim(LX)

tOFF-MIN

Minimum Off-time

(

 Maximum Duty Cycle)

FB = 0V, I(LX) < Ilim(LX)

rON

LX ON-Resistance

I(LX) = 100mA

0.4



ILEAK

LX Leakage Current

NEN = VDD, V(LX) = 30V

µA

IPEAK

LX Peak Current Limit

t > 8.32ms (end of soft-start)

1200

SCHOTTKY DIODE – LX, VOUT

VDIODE

Forward Voltage from LX to VOUT

I = 10mA, TA = +25°C

0.4

0.5

0.6

I = 10mA, TA = -40°C to +85°C

0.3

0.5

0.7

ISL97701 датащи(PDF) 3 Page - Renesas Technology Corp

ISL97701 датащи(HTML) 3 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11

датащи скачать

ссылки URL