ISL6566 datasheet(1/30 Pages) RENESAS

Part #	ISL6566

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

PDF	30 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

1 / 30 page

FN9178 Rev 4.00

Page 1 of 30

Mar 9, 2006

FN9178

Rev 4.00

Mar 9, 2006

ISL6566

Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9,

VRM10, and AMD Hammer Applications

DATASHEET

The ISL6566 three-phase PWM control IC provides a

precision voltage regulation system for advanced

microprocessors. The integration of power MOSFET drivers

into the controller IC marks a departure from the separate

PWM controller and driver configuration of previous multi-

phase product families. By reducing the number of external

parts, this integration is optimized for a cost and space

saving power management solution.

Outstanding features of this controller IC include

programmable VID codes compatible with Intel VRM9,

VRM10, as well as AMD Hammer microprocessors. A unity

gain, differential amplifier is provided for remote voltage

sensing, compensating for any potential difference between

remote and local grounds. The output voltage can also be

positively or negatively offset through the use of a single

external resistor.

A unique feature of the ISL6566 is the combined use of both

DCR and rDS(ON) current sensing. Load line voltage

positioning (droop) and overcurrent protection are

accomplished through continuous inductor DCR current

sensing, while rDS(ON) current sensing is used for accurate

channel-current balance. Using both methods of current

sampling utilizes the best advantages of each technique.

Protection features of this controller IC include a set of

sophisticated overvoltage, undervoltage, and overcurrent

protection. Overvoltage results in the converter turning the

lower MOSFETs ON to clamp the rising output voltage and

protect the microprocessor. The overcurrent protection level

is set through a single external resistor. Furthermore, the

ISL6566 includes protection against an open circuit on the

remote sensing inputs. Combined, these features provide

advanced protection for the microprocessor and power

system.

Features

• Integrated Multi-Phase Power Conversion

- 1, 2, or 3-Phase Operation

• Precision Core Voltage Regulation

- Differential Remote Voltage Sensing

-

0.5% System Accuracy Over Temperature

- Adjustable Reference-Voltage Offset

• Precision Channel Current Sharing

- Uses Loss-Less rDS(ON) Current Sampling

• Accurate Load Line Programming

- Uses Loss-Less Inductor DCR Current Sampling

• Variable Gate Drive Bias: 5V to 12V

• Microprocessor Voltage Identification Inputs

- Up to a 6-Bit DAC

- Selectable between Intel’s VRM9, VRM10, or AMD

Hammer DAC Codes

- Dynamic VID Technology

• Overcurrent Protection

• Multi-tiered Overvoltage Protection

• Digital Soft-Start

• Selectable Operation Frequency up to 1.5MHz Per Phase

• Pb-Free Plus Anneal Available (RoHS Compliant)

Pinout

ISL6566 (QFN)

TOP VIEW

VID1

VID0

VID12.5

VRM10

REF

OFS

VCC

COMP

FB

VDIFF

1

40

2

3

4

5

6

7

8

9

10

30

29

28

27

26

25

24

23

22

21

39

38

37

36

35

34

33

32

31

11

12

13

14

15

16

17

18

19

20

BOOT1

PHASE1

PHASE2

UGATE2

BOOT2

ISEN2

PVCC2

LGATE2

PHASE3

BOOT3

41

GND

Similar Part No. - ISL6566

Manufacturer	Part #	Datasheet	Description
Intersil Corporation	ISL6566	799Kb / 28P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications July 25, 2005
	ISL6566	803Kb / 29P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications March 9, 2006
	ISL6566A	784Kb / 28P	Three-Phase Buck PWM Controller with Two Integrated MOSFET Drivers and One External Driver Signal July 27, 2005
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 July 27, 2005

More results

Similar Description - ISL6566

Manufacturer	Part #	Datasheet	Description
Intersil Corporation	ISL6566	799Kb / 28P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications July 25, 2005
	ISL6568	716Kb / 28P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications July 25, 2005
	ISL6566	803Kb / 29P	Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications March 9, 2006
	ISL6568	725Kb / 29P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications March 9, 2006
	ISL6313B	628Kb / 33P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications November 6, 2008
	ISL6314	820Kb / 32P	Single-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications October 8, 2009
	ISL6313BCRZ	630Kb / 33P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications November 6, 2008
Renesas Technology Corp	ISL6313	1Mb / 34P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications
	ISL6314	1Mb / 32P	Single-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications
	ISL6568	1Mb / 30P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications

More results

ISL6566 Datasheet(PDF) 1 Page - Renesas Technology Corp

ISL6566 Datasheet(HTML) 1 Page - Renesas Technology Corp

Similar Part No. - ISL6566

Similar Description - ISL6566

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Datasheet Download

Link URL