ISL78841ASEHVF datasheet(6/15 Pages) INTERSIL

Part #	ISL78841ASEHVF

Description	Radiation Hardened, 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

ISL78840ASEH, ISL78841ASEH, ISL78843ASEH, ISL78845ASEH

6

FN7952.0

May 29, 2012

Absolute Maximum Ratings

Thermal Information

Supply Voltage VDD Without Beam . . . . . . . . . . . . . . .GND -0.3V to +30.0V

Supply Voltage VDD Under Beam . . . . . . . . . . . . . . . . .GND -0.3V to +14.7V

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

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

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

ESD Rating

Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . 2kV

Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . 200V

Latch Up (Tested per JESD-78B; Class 2, Level A) . . . . . . . . . . . . . . 100mA

Recommended Operating Conditions

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

Supply Voltage (Typical Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 13.2V

Thermal Resistance (Typical)

θJA (°C/W) θJC (°C/W)

8 Ld Flatpack Package (Notes 3, 4)

140

15

8 Ld SBDIP Package (Notes 3, 4)

98

15

Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . .+150°C

Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

Radiation Information

Maximum Total Dose

Dose Rate = 50 - 100radSi/s . . . . . . . . . . . . . . . . . . . . . . . 100 krads (Si)

Dose Rate = 0.01rad(Si)/s (Note 6). . . . . . . . . . . . . . . . . . . . . 100 krad (Si)

SEB (No Burnout) (Note 6). . . . . . . . . . . . . . . . . . . . . . . . . . 80Mev/mg/cm2

SEL (No latchup) (Note 6) . . . . . . . . . . . . . . . . . . . . . . . . . . 80Mev/mg/cm2

SET (Regulated VOUT within ±3%) (Note 9) . . . . . . . . . . . . 40Mev/mg/cm2

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.

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

4. For

θJC, the "case temp" location is the center of the ceramic on the package underside.

5. All voltages are with respect to GND.

6. Product capability established by initial characterization. The “EH” version is acceptance tested on a wafer by wafer basis to 50 krad(Si) at low dose

rate.

Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application

schematic on page 3 and page 4. VDD = 13.2V, RT = 10kΩ, CT = 3.3nF, TA = -55 to +125°C. Typical values are at TA = +25°C. Boldface limits apply over

the operating temperature range, -55 to +125°C.

PARAMETER

TEST CONDITIONS

MIN

(Note 10)

TYP

MAX

(Note 10)

UNITS

UNDERVOLTAGE LOCKOUT

START Threshold

ISL78840A, ISL78841A

6.5

7.0

7.5

V

ISL78843A, ISL78845A

8.0

8.4

9.0

V

STOP Threshold

ISL78840A, ISL78841A

6.1

6.6

6.9

V

ISL78843A, ISL78845A

7.3

7.6

8.0

V

Hysteresis

ISL78840A, ISL78841A

-

0.4

-

V

ISL78843A, ISL78845A

-

0.8

-

V

Start-up Current, IDD

VDD < START Threshold

-

90

125

µA

VDD < START Threshold, 100krad

-

300

500

µA

Operating Current, IDD

(Note 7)

-

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 = 9V to 13.2V), load of

1mA and 10mA, temperature

4.925

5.000

5.050

V

Long Term Stability

TA = +125°C, 1000 hours (Note 8)

-

5

-

mV

Current Limit, Sourcing

-20

-

mA

Current Limit, Sinking

5

-

mA

CURRENT SENSE

Input Bias Current

VCS = 1V

-1.0

-

1.0

µA

Input Signal, Maximum

0.97

1.00

1.03

V

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