ISL9443

11

FN7663.0

June 20, 2011

Source Current

800

mA

Sink Current

2000

mA

Upper Drive Pull-Up

VCC_5V = 5.0V

1.5

3

Ω

Upper Drive Pull-Down

VCC_5V = 5.0V

1.1

2.5

Ω

Lower Drive Pull-Up

VCC_5V = 5.0V

1.5

3

Ω

Lower Drive Pull-Down

VCC_5V = 5.0V

0.6

1.5

Ω

Rise Time

8

ns

Fall Time

10

ns

OVERVOLTAGE PROTECTION

OV Trip Point

114.5

118.5

123.5

%

OVERCURRENT PROTECTION

Overcurrent Threshold (OCSET_) (Note 11)

ROCSET = 55kΩ

32

µA

Full Scale Input Current (ISEN_) (Note 11)

15

µA

Overcurrent Set Voltage (OCSET_)

1.67

1.74

1.81

V

Over-Temperature Shutdown

150

°C

Over-Temperature Hysteresis

15

°C

NOTES:

6. In normal operation, where the device is supplied with voltage on the VIN pin, the VCC_5V pin provides a 5V output capable of 75mA (min). When the

VCC_5V pin is connected to external 5V supply, the internal LDO regulator is disabled. The voltage at VCC_5V should not exceed the voltage at VIN

at any time. (Refer to the “Pin Descriptions” on page 2 for more details.)

8. Operating current is the supply current consumed when the device is active but not switching. It does not include gate drive current.

9. 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.

10. Check Note 6 for VCC_5V and VIN configurations.

11. Threshold voltage at PHASE1, PHASE2, PHASE3 pins for turning off the bottom MOSFET during DEM.

specified. Boldface limits apply over the operating temperature range, -40°C to +85°C

(Continued)

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

(Note 9)

TYP

MAX

(Note 9)

UNITS