PDF預(yù)覽

• 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

廬

ISL6566A

Data Sheet

July 27, 2005

FN9200.2

Three-Phase Buck PWM Controller with

Two Integrated MOSFET Drivers and One

External Driver Signal

The ISL6566A 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 ISL6566A is the combined use of

both DCR and r

DS(ON)

current sensing. Load line voltage

positioning (droop) and overcurrent protection are

accomplished through continuous inductor DCR current

sensing, while r

DS(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

ISL6566A includes protection against an open circuit on the

remote sensing inputs. Combined, these features provide

advanced protection for the microprocessor and power system.

Features

鈥?Integrated Multi-Phase Power Conversion

- 1 or 2-Phase Operation with Internal Drivers

- 3-Phase Operation with External PWM Driver Signal

鈥?Precision Core Voltage Regulation

- Differential Remote Voltage Sensing

-

鹵0.5%

System Accuracy Over Temperature

- Adjustable Reference-Voltage Offset

鈥?Precision Channel Current Sharing

- Uses Loss-Less r

DS(ON)

Current Sampling

鈥?Accurate Load Line Programming

- Uses Loss-Less Inductor DCR Current Sampling

鈥?Variable Gate Drive Bias: 5V to 12V

鈥?Microprocessor Voltage Identification Inputs

- Up to a 6-Bit DAC

- Selectable between Intel鈥檚 VRM9, VRM10, or AMD

Hammer DAC codes

- Dynamic VID-on-the-fly Technology

鈥?Multi-tiered Overvoltage and Overcurrent Protection

鈥?Digital Soft-Start

鈥?Selectable Operation Frequency up to 1.5MHz Per Phase

鈥?Pb-Free Plus Anneal Available (RoHS Compliant)

Pinout

ISL6566A (QFN)

TOP VIEW

UGATE1

31

30 BOOT1

29 PHASE1

28 NC

27 PWM3

41

GND

26 NC

25 ISEN3

24 EN_PH3

23 NC

22 PHASE2

21 BOOT2

11

RGND

12

VSEN

13

OCSET

14

ICOMP

15

ISUM

16

IREF

17

LGATE2

18

PVCC2

19

ISEN2

20

UGATE2

LGATE1

PGOOD

PVCC1

33

ISEN1

32

ENLL

37

VID2

VID3

VID4

40

VID1

1

2

3

4

5

6

7

8

9

39

38

FS

36

35

34

Ordering Information

PART NUMBER*

ISL6566ACR

ISL6566ACRZ (Note)

ISL6566ACRZA (Note)

ISL6566AIR

ISL6566AIRZ (Note)

ISL6566AIRZA (Note)

TEMP.

(擄C)

0 to 70

0 to 70

0 to 70

PACKAGE

40 Ld 6x6 QFN

PKG.

DWG. #

L40.6x6

VID0

VID12.5

VRM10

REF

OFS

VCC

COMP

FB

40 Ld 6x6 QFN (Pb-free) L40.6x6

40 Ld 6x6 QFN (Pb-free) L40.6x6

L40.6x6

-40 to 85 40 Ld 6x6 QFN

-40 to 85 40 Ld 6x6 QFN (Pb-free) L40.6x6

-40 to 85 40 Ld 6x6 QFN (Pb-free) L40.6x6

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020

*Add 鈥?T鈥?suffix for tape and reel.

VDIFF 10

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or1-888-468-3774

|

Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright Intersil Americas Inc. 2005. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

next

ISL6566AIR-T相關(guān)型號PDF文件下載

• 型號
  版本
  描述
  廠商
  下載
• ISL6111
  英文版
  Current Regulated PCI Hot Plug Power Switch Controller
  
  ISL6111
• ISL6112
  英文版
  Dual Slot PCI-Express Power Controller
  
  ISL6112
• ISL6113
  英文版
  Dual Slot PCI-E Hot Plug Controllers
  
  ISL6113
• ISL6115
  英文版
  Power Distribution Controllers
  
  ISL6115
• ISL6116
  英文版
  Power Distribution Controllers
  
  ISL6116
• ISL6117
  英文版
  Power Distribution Controllers
  
  ISL6117
• ISL6118
  英文版
  Dual Power Supply Controller
  
  ISL6118
• ISL6119
  英文版
  USB Dual Port Power Supply Controller
  
  ISL6119
• ISL6120
  英文版
  Power Distribution Controllers
  
  ISL6120
• ISL6121
  英文版
  Single Supply Integrated Current Limiting Controller
  
  ISL6121
• ISL6123
  英文版
  Power Sequencing Controllers
  
  ISL6123
• ISL6124
  英文版
  Power Sequencing Controllers
  
  ISL6124
• ISL6125
  英文版
  Power Sequencing Controllers
  
  ISL6125
• ISL6126
  英文版
  Power Sequencing Controllers
  
  ISL6126
• ISL6127
  英文版
  Power Sequencing Controllers
  
  ISL6127
• ISL6128
  英文版
  Power Sequencing Controllers
  
  ISL6128
• ISL6130
  英文版
  Power Sequencing Controllers
  
  ISL6130
• ISL6130
  英文版
  Power Sequencing Controllers
  INTERSIL [Inter...
  ISL6130
• ISL6131
  英文版
  Multiple Voltage Supervisory ICs
  
  ISL6131
• ISL6131
  英文版
  Multiple Voltage Supervisory ICs
  INTERSIL [...
  ISL6131

您可能感興趣的PDF文件資料

• ISL62771HRTZ
• ISL6367CRZ
• ISL60002
• ISL6753AAZA
• ISL6754AAZA
• ISL6227CAZ
• ISL6236
• ISL6253HAZ
• ISL6277HRZ
• ISL6366CRZ
• ISL6504CB
• ISL6251AHRZ

熱門IC型號推薦

• ISO7221ADR
• IR2133J
• IS42S32800D-6TL
• IMP813LCSA
• ICM7555IPA
• ICL8038CCPD
• IRF7805TR
• INA197AIDBVR
• ISL6260CCRZ
• IPD031N03LG
• IPB072N15N3G
• IMP810SEUR-T