ISL8845AMUZ datasheet(6/15 Pages) INTERSIL

Part #	ISL8845AMUZ

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

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Manufacturer	INTERSIL [Intersil Corporation]

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6 / 15 page

6

FN6320.3

April 18, 2007

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

ESD Classification

Human Body Model (Per JESD22-A114C.01) . . . . . . . . . . .2000V

Machine Model (Per EIA/JESD22-A115-A) . . . . . . . . . . . . . .200V

Charged Device Model (Per JESD22-C191-A) . . . . . . . . . .1000V

Operating Conditions

Temperature Range

ISL884xAAxZ . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C

ISL884xAMxZ. . . . . . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C

Supply Voltage Range (Typical, Note 2)

ISL884xA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 30V

Thermal Resistance (Typical, Note 1)

θJA (°C/W)

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

100

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

130

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, MSOP - 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 Technical Brief TB379 for details.

2. All voltages are with respect to GND.

Electrical Specifications

ISL884xAA - Recommended operating conditions unless otherwise noted. Refer to Block Diagram and

Typical Application schematic onpage 3 and page 4. VDD = 15V, RT = 10kΩ, CT = 3.3nF, TA = -40 to +105°C

(Note 3). Typical values are at TA = +25°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UNDERVOLTAGE LOCKOUT

START Threshold (ISL8840A, ISL8841A)

6.5

7.0

7.5

V

START Threshold (ISL8843A, ISL8845A)

8.0

8.4

9.0

V

START Threshold (ISL8842A, ISL8844A)

(Note 6)

13.3

14.3

15.3

V

STOP Threshold (ISL8840A, ISL8841A)

6.1

6.6

6.9

V

STOP Threshold (ISL8843A, ISL8845A)

7.3

7.6

8.0

V

STOP Threshold (ISL8842A, ISL8844A)

8.0

8.8

9.6

V

Hysteresis (ISL8840A, ISL8841A)

-

0.4

-

V

Hysteresis (ISL8843A, ISL8845A)

-

0.8

-

V

Hysteresis (ISL8842A, ISL8844A)

-

5.4

-

V

Startup Current, IDD

VDD < START Threshold

-

90

125

μA

Operating Current, IDD

(Note 4)

-

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

4.925

5.000

5.050

V

Long Term Stability

TA = +125°C, 1000 hours (Note 5)

-

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 5)

95

100

105

mV

COMP to PWM Comparator Offset Voltage

VCS = 0V (Note 5)

0.80

1.15

1.30

V

ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A

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