ISL6843 datasheet(6/12 Pages) INTERSIL

Part #	ISL6843

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

FN9124.8

April 16, 2007

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

ESD Classification

Human Body Model (Per MIL-STD-883 Method 3015.7) . . .2000V

Charged Device Model (Per EOS/ESD DS5.3, 4/14/93) . . .1000V

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, Note 1, )

θJA (°C/W) θJC (°C/W)

DFN Package (Note 2). . . . . . . . . . . . .

77

6

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

100

N/A

MSOP Package . . . . . . . . . . . . . . . . . .

130

N/A

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

+150°C max junction temperature is intended for short periods of time to prevent shortening the lifetime. Constantly operated at +150°C may shorten the life of the part.

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 Block Diagram and Typical Application

schematic on page 3 and page 4. VDD = 15V (Note 7), Rt = 10kΩ, Ct = 3.3nF, TA = -40 to +105°C (Note 4),

Typical values are at TA = +25°C

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

Startup Current, IDD

VDD < START Threshold

-

60

100

μA

Operating Current, IDD

(Note 5)

-

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 6)

-

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

ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845

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