ISL6520A datasheet(4/12 Pages) INTERSIL

Part #	ISL6520A

Description	Single Synchronous Buck Pulse-Width Modulation PWM Controller

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Manufacturer	INTERSIL [Intersil Corporation]

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4 / 12 page

4

FN9016.6

December 10, 2009

Absolute Maximum Ratings

Thermal Information

Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.0V

Absolute Boot Voltage, VBOOT . . . . . . . . . . . . . . . . . . . . . . . +15.0V

Upper Driver Supply Voltage, VBOOT - VPHASE . . . . . . . . 7.0V (DC)

. . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V (<10ns Pulse Width, 10

μJ)

Input, Output or I/O Voltage . . . . . . . . . . . GND -0.3V to VCC +0.3V

ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2

Operating Conditions

Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±10%

Ambient Temperature Range - ISL6520AC . . . . . . . . . 0°C to +70°C

Ambient Temperature Range - ISL6520AI . . . . . . . . .-40°C to +85°C

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

Thermal Resistance

θJA (°C/W) θJC(°C/W)

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

95

N/A

QFN Package (Notes 2, 3). . . . . . . . . . . . .

45

7

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

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:

1.

θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

2.

θJA 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.

3. For

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

Electrical Specifications

Recommended Operating Conditions, Unless Otherwise Noted.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 4)

TYP

MAX

(Note 4)

UNITS

VCC SUPPLY CURRENT

Nominal Supply

IVCC

2.6

3.2

3.8

mA

POWER-ON RESET

Rising VCC POR Threshold

POR

4.19

4.30

4.50

V

VCC POR Threshold Hysteresis

-0.25-

V

OSCILLATOR

Frequency

fOSC

ISL6520AC, VCC = 5V

250

300

340

kHz

ISL6520AI, VCC = 5V

230

300

340

kHz

Ramp Amplitude

DVOSC

-1.5

-

VP-P

REFERENCE

Reference Voltage Tolerance

ISL6520AC

-1.5

-

+1.5

%

ISL6520AI

-2.5

-

+2.5

%

Nominal Reference Voltage

VREF

-0.800

-

V

ERROR AMPLIFIER

DC Gain

Limits established by characterization and

are not production tested

-88-

dB

Gain-Bandwidth Product

GBWP

-

15

-

MHz

Slew Rate

SR

-

8

-

V/µs

GATE DRIVERS

Upper Gate Source Current

IUGATE-SRC VBOOT - VPHASE = 5V, VUGATE = 4V

-

-1

-

A

Upper Gate Sink Current

IUGATE-SNK

-1-

A

Lower Gate Source Current

ILGATE-SRC VVCC = 5V, VLGATE = 4V

-

-1

-

A

Lower Gate Sink Current

ILGATE-SNK

-2-

A

PROTECTION / DISABLE

OCSET Current Source

IOCSET

ISL6520AC

17

20

22

µA

ISL6520AI

14

20

24

µA

Disable Threshold

VDISABLE

-0.8

-

V

NOTE:

4. 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.

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