ISL6566 datasheet(26/28 Pages) INTERSIL

No de pièce	ISL6566

Description	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications

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Fabricant	INTERSIL [Intersil Corporation]

Site Internet	http://www.intersil.com/cda/home

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26 / 28 page

26

FN9178.3

July 25, 2005

Thermal Management

For maximum thermal performance in high current, high

switching frequency applications, connecting the thermal

GND pad of the ISL6566 to the ground plane with multiple

vias is recommended. This heat spreading allows the part to

achieve its full thermal potential. It is also recommended

that the controller be placed in a direct path of airflow if

possible to help thermally manage the part.

Suppressing MOSFET Gate Leakage

With VCC at ground potential, UGATE is high impedance. In

this state, any stray leakage has the potential to deliver

charge to the gate of the upper MOSFET. If UGATE receives

sufficient charge to bias the device on, a low impedance path

will be connected between the upper MOSFET drain and

PHASE. If this occurs and the input power supply is present

and active, the system could see potentially damaging

current. Worst-case leakage currents are on the order of

pico-amps; therefore, a 10k

Ω resistor, connected from

UGATE to PHASE, is more than sufficient to bleed off any

stray leakage current. This resistor will not affect the normal

performance of the driver or reduce its efficiency.

ISL6566

Numéro de pièce similaire - ISL6566

Fabricant	No de pièce	Fiches technique	Description
Intersil Corporation	ISL6566	803Kb / 29P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications
Renesas Technology Corp	ISL6566	1Mb / 30P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications
Intersil Corporation	ISL6566A	784Kb / 28P	Three-Phase Buck PWM Controller with Two Integrated MOSFET Drivers and One External Driver Signal
Renesas Technology Corp	ISL6566A	1Mb / 29P	Three-Phase Buck PWM Controller with Two Integrated MOSFET Drivers and One External Driver Signal
Intersil Corporation	ISL6566ACR	784Kb / 28P	Three-Phase Buck PWM Controller with Two Integrated MOSFET Drivers and One External Driver Signal

Fabricant	No de pièce	Fiches technique	Description
Renesas Technology Corp	ISL6566	1Mb / 30P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications
Intersil Corporation	ISL6566	803Kb / 29P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications
Renesas Technology Corp	ISL6568	1Mb / 30P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications
Intersil Corporation	ISL6568	716Kb / 28P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications
Intersil Corporation	ISL6568	725Kb / 29P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications
Renesas Technology Corp	ISL6314	1Mb / 32P	Single-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications
Renesas Technology Corp	ISL6313	1Mb / 34P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications
Intersil Corporation	ISL6314	820Kb / 32P	Single-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications
	ISL6313BCRZ	630Kb / 33P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications November 6, 2008
	ISL6313B	628Kb / 33P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications