ISL8842AMBEPZ datasheet(4/10 Pages) INTERSIL

Part #	ISL8842AMBEPZ

Description	High Performance Industry Standard Single-Ended Current Mode PWM Controller

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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4 / 10 page

4

FN6792.0

September 29, 2008

Absolute Maximum Ratings

Thermal Information

Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . GND -0.3V to +30V

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

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

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

Thermal Resistance (Note 4)

θJA (°C/W)

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

100

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +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

Operating Conditions

Supply Voltage Range (Note 3) . . . . . . . . . . . . . . . . . . . . . 9V to 30V

Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to +125°C

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:

3. All voltages are with respect to GND.

4.

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

Electrical Specifications

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

VDD = 15V, Rt = 10kΩ, Ct = 3.3nF, TA = -55 to +125°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 (ISL8840AMBEPZ,

ISL8841AMBEPZ)

6.5

7.0

7.5

V

START Threshold (ISL8843AMBEPZ,

ISL8845AMBEPZ)

8.0

8.4

9.0

V

START Threshold (ISL8842AMBEPZ,

ISL8844AMBEPZ)

(Note 7)

13.3

14.3

15.3

V

STOP Threshold (ISL8840AMBEPZ,

ISL8841AMBEPZ)

6.1

6.6

6.9

V

STOP Threshold (ISL8843AMBEPZ,

ISL8845AMBEPZ)

7.3

7.6

8.0

V

STOP Threshold (ISL8842AMBEPZ,

ISL8844AMBEPZ)

8.0

8.8

9.6

V

Hysteresis (ISL8840AMBEPZ, ISL8841AMBEPZ)

-

0.4

-

V

Hysteresis (ISL8843AMBEPZ, ISL8845AMBEPZ)

-

0.8

-

V

Hysteresis (ISL8842AMBEPZ, ISL8844AMBEPZ)

-

5.4

-

V

Start-up Current, IDD

VDD < START Threshold

-

90

125

µA

Operating Current, IDD

(Note 5)

-

2.9

4.0

mA

Operating Supply Current, ID

Includes 1nF GATE loading

-

4.75

5.5

mA

REFERENCE VOLTAGE

Overall Accuracy

Over line (VDD = 12V to 30V), load,

temperature

4.900

5.000

5.050

V

Long Term Stability

TA = +125°C, 1000 hours (Note 6)

-

5

-

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 6)

95

100

105

mV

COMP to PWM Comparator Offset Voltage

VCS = 0V (Note 6)

0.80

1.15

1.30

V

Input Signal, Maximum

0.97

1.00

1.03

V

ISL8840AMBEPZ, ISL8841AMBEPZ, ISL8842AMBEPZ, ISL8843AMBEPZ, ISL8844AMBEPZ, ISL8845AMBEPZ

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