ISL6558IB-T datasheet(6/16 Pages) INTERSIL

Part #	ISL6558IB-T

Description	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positioning

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Manufacturer	INTERSIL [Intersil Corporation]

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6

FN9027.12

June 21, 2005

Absolute Maximum Ratings

Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7V

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

ESD Classification

Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV

Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250V

Recommended Operating Conditions

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V

±5%

Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C

Maximum Operating Junction Temperature. . . . . . . . . . . . . . . 125°C

Thermal Information

Thermal Resistance (Typical Notes 1, 2, 3)

θJA(°C/W) θJC(°C/W)

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

70

N/A

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

35

5

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150°C

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

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C

(SOIC - Lead Tips Only)

CAUTION: Stress above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational section of this specification is not implied.

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 for details.

3.

θJC, "case temperature" location is at the center of the exposed metal pad on the package underside.

Electrical Specifications

Operating Conditions: VCC = 5V, TA = -40°C to 85°C. Unless Otherwise Specified.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

INPUT SUPPLY POWER

Input Supply Current

VCC = 5VDC; RT = 100kΩ ±1%

-

10

15

mA

POWER-ON RESET (POR)

VCC Rising Threshold

4.25

4.38

4.5

V

VCC Falling Threshold

3.75

3.88

4.00

V

REFERENCE VOLTAGE

Reference Voltage

ISL6558CB, ISL6558CR, TA = 0°C to 70°C

0.792

0.8

0.808

V

ISL6558IB, ISL6558IR, TA = -40°C to 85°C

0.788

0.8

0.812

V

System Accuracy

ISL6558CB, ISL6558CR, TA = 0°C to 70°C

-1.0

-

1.0

%

ISL6558IB, ISL6558IR, TA = -40°C to 85°C

-1.5

-

1.5

%

OSCILLATOR

Channel Frequency Accuracy

RT = 100kΩ. ±1%

224

280

336

kHz

Adjustment Range

See Figure 3

0.08

-

1.5

MHz

Disable Voltage

Maximum voltage at FS/EN to disable controller. IFS/EN = 1mA

-

1.2

1.0

V

Sawtooth Amplitude

-1.33-VP-P

Channel Maximum Duty Cycle, by Design

(GBD)

-75-

%

ERROR AMPLIFIER

DC Gain (GNT)

RL = 10K to ground

-

72

-

dB

Gain-Bandwidth Product (GNT)

CL = 100pF, RL = 10K to ground

-

18

-

MHz

Slew Rate

CL = 100pF, Load = ±400µA-

5.3

-

V/

µs

Maximum Output Voltage

RL = 10K to ground

3.6

4.1

-

V

ISEN

Recommended Full Scale Input Current

-50-

µA

Overcurrent Trip Level

67

-

85

µA

ISL6558

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