ISL6565A, ISL6565B

FN9135 Rev 4.00

Page 8 of 28

Dec 1, 2005

OSCILLATOR

Accuracy

-10

-

10

%

Adjustment Range

0.08

-

1.5

MHz

Sawtooth Amplitude

-1.5

-

V

Max Duty Cycle

-

66.7

-

%

ERROR AMPLIFIER

Open-Loop Gain (Note 7)

-

80

-

dB

Open-Loop Bandwidth (Note 7)

-

18

-

MHz

Slew Rate

4.5

6.0

7.5

V/

s

Maximum Output Voltage

4.0

4.3

-

V

Output High Voltage @ 2mA

3.7

-

-

V

Output Low Voltage @ 2mA

-

-

1.35

V

REMOTE-SENSE AMPLIFIER

Bandwidth (Note 7)

-20

-

MHz

Output High Current

VSEN - RGND = 2.5V

-500

-

500

A

Output High Current

VSEN - RGND = 0.6

-500

-

500

A

PWM OUTPUT

PWM Output Voltage LOW Threshold

Iload = ±500

A-

-

0.3

V

PWM Output Voltage HIGH Threshold

Iload = ±500

A4.3

-

-

V

TEMPERATURE COMPENSATION

Temperature Compensation Current @ 40°C and

Tcomp = 0.5V

10

15

20

A

Temperature Compensation Transconductance (Note 7)

-

2

-

A/V°C

SENSE CURRENT

Sensed Current Tolerance

ISEN1 = ISEN2 = ISEN3 = 80

A, 0°C to 105°C

74

81

91

A

Overcurrent Trip Level

95

110

130

A

POWER GOOD AND PROTECTION MONITORS

PGOOD Low Voltage

-

-

0.4

V

Undervoltage Offset From VID

VSEN Falling

72

74

76

%VID

Overvoltage Threshold

Voltage above VID, After Soft-Start (Note 6)

180

200

220

mV

Before Enable

-

1.63

-

V

VCC < POR Threshold

1.7

1.8

1.87

V

Overvoltage Reset Voltage

VCC

 POR Threshold, VSEN Falling

-

0.6

-

V

VCC < POR Threshold

-

1.5

-

V

OVP Drive Voltage

-

1.9

-

V

Minimum VCC for OVP

1.4

-

-

V

NOTES:

4. When using the internal shunt regulator, VCC is clamped to 6.02V (max). Current must be limited to 25mA or less.

5. These parts are designed and adjusted for accuracy with all errors in the voltage loop included.

6. During soft-start, VDAC rises from 0 to VID. The overvoltage trip level is the higher of 1.7V and VDAC + 0.2V.

7. Parameter magnitude guaranteed by design. Not 100% tested.

Electrical Specifications

Unless Otherwise Specified. (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS