ISL6841IRZ-T datasheet(6/12 Pages) INTERSIL

Part #	ISL6841IRZ-T

Description	Improved Industry Standard Single-Ended Current Mode PWM Controller

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Manufacturer	INTERSIL [Intersil Corporation]

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6 / 12 page

6

FN9124.10

August 7, 2008

Absolute Maximum Ratings

Thermal Information

Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V

OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VDD + 0.3V

Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6.0V

Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A

Operating Conditions

Temperature Range

ISL684xIx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C

Supply Voltage Range (Typical, Note 3)

ISL6840, ISL6841 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5V to 14V

ISL6843, ISL6845. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 16V

ISL6842, ISL6844. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V to 18V

Thermal Resistance (Typical)

θJA (°C/W) θJC (°C/W)

DFN Package (Notes 1, 2) . . . . . . . . . .

77

6

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

100

N/A

MSOP Package (Note 1) . . . . . . . . . . .

130

N/A

Maximum Junction Temperature . . . . . . . . . . . . . . . -55°C to +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. For

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

3. All voltages are with respect to GND.

Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” and “Typical

Application” schematic on pages 3 and 4. VDD = 15V (Note 6), Rt = 10kΩ, Ct = 3.3nF, TA = -40 to +105°C Typical

values are at TA = +25°C. 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.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UNDERVOLTAGE LOCKOUT

START Threshold (ISL6840, ISL6841)

6.5

7.0

7.5

V

START Threshold (ISL6843, ISL6845)

7.8

8.4

9.0

V

START Threshold (ISL6842, ISL6844)

13.3

14.3

15.3

V

STOP Threshold (ISL6840, ISL6841)

6.1

6.6

6.9

V

STOP Threshold (ISL6843, ISL6845)

6.7

7.2

7.7

V

STOP Threshold (ISL6842, ISL6844)

8.0

8.8

9.6

V

Hysteresis (ISL6840, ISL6841)

-

0.4

-

V

Hysteresis (ISL6843, ISL6845)

-

0.8

-

V

Hysteresis (ISL6842, ISL6844)

-

5.4

-

V

Start-up Current, IDD

VDD < START Threshold

-

60

100

µA

Operating Current, IDD

(Note 4)

-

3.3

4.0

mA

Operating Supply Current, ID

Includes 1nF GATE loading

-

4.1

5.5

mA

REFERENCE VOLTAGE

Overall Accuracy

Over line (VDD = 12V to 18V), load,

temperature

4.925

5.000

5.050

V

Long Term Stability

TA = +125°C, 1000 hours (Note 5)

-

5

-

mV

Fault Voltage

4.40

4.65

4.85

V

VREF Good Voltage

4.60

4.80

VREF - 0.05

V

Hysteresis

50

165

250

mV

Current Limit, Sourcing

-20

-

mA

Current Limit, Sinking

5

-

mA

CURRENT SENSE

Input Bias Current

VCS = 1V

-1.0

-

1.0

µA

CS Offset Voltage

VCS = 0V (Note 5)

95

100

105

mV

COMP to PWM Comparator Offset Voltage

VCS = 0V (Note 5)

0.80

1.15

1.30

V

Input Signal, Maximum

0.91

0.97

1.03

V

ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845

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