ISL6521 datasheet(4/14 Pages) RENESAS

4 / 14 page

ISL6521

FN9148 Rev 2.00

Page 4 of 14

Feb 8, 2005

Absolute Maximum Ratings

UGATE, BOOT. . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 15V

VCC, PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +7V

DRIVE, LGATE, all other pins . . . . . . . . GND - 0.3V to VCC + 0.3V

Operating Conditions

Supply Voltage on VCC . . . . . . . . . . . . . . . . . . . . . . . . . . +5V

10%

Ambient Temperature Range

ISL6521CBZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C

ISL6521IBZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to 85°C

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

Thermal Information

Thermal Resistance (Typical, Note 1)

JA (°C/W)

SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C

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

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

(SOIC - Lead Tips Only)

CAUTION: Stresses 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 sections of this specification is not implied.

NOTE:

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

Electrical Specifications

Operating Conditions: VCC = 5V, TA = 0°C to 70°C, Unless Otherwise Noted. Typical specifications are at

TA = 25°C.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VCC SUPPLY CURRENT

Nominal Supply Current

ICC

UGATE, LGATE, and DRIVEx Open

POWER-ON RESET

Rising VCC Threshold

4.25

4.51

Falling VCC Threshold

3.74

4.0

OSCILLATOR AND SOFT-START

Free Running Frequency

FOSC

ISL6521CBZ

275

300

325

kHz

ISL6521IBZ (-40°C to 85°C)

250

300

350

kHz

Ramp Amplitude

VOSC

-1.5

VP-P

Soft-Start Interval

TSS

6.25

6.83

7.40

REFERENCE VOLTAGE

Reference Voltage (All Regulators)

VREF

0.780

0.800

0.820

All Outputs Voltage Regulation

ISL6521CBZ

-2.0

+2.0

ISL6521IBZ (-40°C to 85°C)

-2.5

+2.5

LINEAR REGULATORS (OUT2, OUT3, AND OUT4)

Output Drive Current (All Linears)

VCC > 4.5V

100

120

Undervoltage Level (VFB/VREF)VUV

-70-

SYNCHRONOUS PWM CONTROLLER ERROR AMPLIFIER

DC Gain

-80-

Gain-Bandwidth Product

GBWP

MHz

Slew Rate

COMP = 10pF

s

PWM CONTROLLER GATE DRIVERS

UGATE Source

IUGATE

VCC = 5V, VUGATE = 2.5V

-1

UGATE Sink

IUGATE

VUGATE-PHASE = 2.5V

LGATE Source

ILGATE

VCC = 5V, VLGATE = 2.5V

-1

LGATE Sink

ILGATE

VLGATE = 2.5V

PROTECTION

OCSET Current Source

IOCSET

ISL6521CBZ

A

ISL6521IBZ (-40°C to 85°C)

31.5

A

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