ISL6441

FN9197 Rev 3.00

Page 6 of 19

May 26, 2009

SHUTDOWN1/SHUTDOWN2

HIGH Level (Converter Enabled)

Internal Pull-up (3µA)

2.0

-

-

V

LOW Level (Converter Disabled)

-

-

0.8

V

PWM CONVERTERS

Output Voltage

-0.8

-

V

FB Pin Bias Current

--

150

nA

Maximum Duty Cycle

71

-

-

%

73

-

-

%

Minimum Duty Cycle

-4-

%

PWM CONTROLLER ERROR AMPLIFIERS

DC Gain (Note 7)

80

88

-

dB

Gain-Bandwidth Product (Note 7)

5.9

-

-

MHz

Slew Rate (Note 7)

-

2.0

-

V/µs

Maximum Output Voltage (Note 7)

0.9

-

-

V

Minimum Output Voltage (Note 7)

-

-

3.6

V

PWM CONTROLLER GATE DRIVERS (Note 8)

Sink/Source Current

-

400

-

mA

Upper Drive Pull-Up Resistance

VCC_5V = 4.5V

-

8

-



Upper Drive Pull-Down Resistance

VCC_5V = 4.5V

-

3.2

-



Lower Drive Pull-Up Resistance

VCC_5V = 4.5V

-

8

-



Lower Drive Pull-Down Resistance

VCC_5V = 4.5V

-

1.8

-



Rise Time

-

18

-

ns

Fall Time

-

18

-

ns

LINEAR CONTROLLER

Drive Sink Current

50

-

-

mA

FB3 Feedback Threshold

I = 21mA

-

0.8

-

V

Undervoltage Threshold

-75-

%

FB3 Input Leakage Current

-

45

150

nA

Amplifier Transconductance

-

2

-

A/V

POWER GOOD AND CONTROL FUNCTIONS

PGOOD LOW Level Voltage

Pull-up = 100k



-0.1

0.5

V

PGOOD Leakage Current

-

-

±1.0

µA

PGOOD Upper Threshold, PWM 1 and 2

Fraction of set point

105

-

120

%

PGOOD Lower Threshold, PWM 1 and 2

Fraction of set point

80

-

95

%

PGOOD for Linear Controller

70

75

80

%

Electrical Specifications

Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical

specified. Temperature limits established by characterization and are not production tested. (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS