3

FN6696.2

August 31, 2010

Controller and Driver Recommendations

CONTROLLER

COMMENTS

ISL6336B

When PSI# is asserted (LOW), the controller generates a 3-level PWM pattern on the phases that are active in PSI# mode. The

active phases in PSI# mode must use VR11.1 drivers, ISL6622, ISL6620 for diode emulation.

DRIVER

GATE DRIVE

VOLTAGE

# OF GATE

DRIVES

DIODE

EMULATION

(DE)

GATE DRIVE

OPTIMIZATION

(GVOT)

COMMENTS

ISL6622,

ISL6622A,ISL6622B

12V

Dual Output

(Single Phase)

Yes

Yes

For phases that are active in PSI# mode and its coupled

channel in coupled inductor applications. Can also be

used on all channels.

ISL6620, ISL6620A

5V

Dual Output

(Single Phase)

Yes

No

For phases that are active in PSI# mode and its coupled

channel in coupled inductor applications. Can also be

used on all channels.

ISL6612, ISL6612A

12V

Dual Output

(Single Phase)

No

No

Can be used with phases that are inactive in PSI# mode

ISL6596, ISL6609

5V

Dual Output

(Single Phase)

No

No

Can be used with phases that are inactive in PSI# mode

ISL6614, ISL6614A

12V

Quad Output

(Two Phase)

No

No

Can be used with phases that are inactive in PSI# mode

ISL6610, ISL6610A

5V

Quad Output

(Two Phase)

No

No

Can be used with phases that are inactive in PSI# mode

NOTE: Intersil 5V and 12V drivers are mostly pin-to-pin compatible and allow for dual footprint layout implementation to optimize MOSFET selection and

efficiency. Dual = One Synchronous Channel; Quad = Two Synchronous Channels.

ISL6336B