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參數資料
| 型號： | ISL6308IRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | Three-Phase Buck PWM Controller with High Current Integrated MOSFET Drivers |
| 中文描述： | SWITCHING CONTROLLER, 1500 kHz SWITCHING FREQ-MAX, PQCC40 |
| 封裝： | 6 X 6 MM, ROHS COMPLIANT, PLASTIC, MO-220VJJD-1, QFN-40 |
| 文件頁數： | 1/27頁 |
| 文件大小： | 765K |
| 代理商： | ISL6308IRZ |
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1
FN9208.2
ISL6308
Three-Phase Buck PWM Controller with
High Current Integrated MOSFET Drivers
The ISL6308 is a three-phase PWM control IC with
integrated MOSFET drivers. It provides a precision voltage
regulation system for multiple applications including, but not
limited to, high current low voltage point-of-load converters,
embedded applications and other general purpose low
voltage medium to high current applications.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 allows
for a cost and space saving power management solution.
Output voltage can be programmed using the on-chip DAC
or an external precision reference. A two bit code programs
the DAC reference to one of 4 possible values (0.6V,
0.9V,1.2V and 1.5V). 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 offset through the use of single
external resistor. An optional droop function is also
implemented and can be disabled for applications having
less stringent output voltage variation requirements or
experiencing less severe step loads.
A unique feature of the ISL6308 is the combined use of both
DCR and r
DS(ON)
current sensing. Load line voltage
positioning 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 and overcurrent protection.
Overvoltage results in the converter turning the lower
MOSFETs ON to clamp the rising output voltage and protect
the load. An OVP output is also provided to drive an optional
crowbar device. The overcurrent protection level is set
through a single external resistor. Other protection features
include protection against an open circuit on the remote
sensing inputs. Combined, these features provide advanced
protection for the output load.
Features
Integrated Multi-Phase Power Conversion
- 1, 2, or 3 Phase Operation
Precision Output Voltage Regulation
- Differential Remote Voltage Sensing
- ±0.8% System Accuracy Over Temperature
(for REF=0.6V and 0.9V)
- ±0.5% System Accuracy Over Temperature
(for REF=1.2V and 1.5V)
- Usable for output voltages not exceeding 2.3V
- Adjustable Reference-Voltage Offset
Precision Channel Current Sharing
- Uses Loss-Less r
DS(ON)
Current Sampling
Optional Load Line (Droop) Programming
- Uses Loss-Less Inductor DCR Current Sampling
Variable Gate-Drive Bias - 5V to 12V
Internal or External Reference Voltage Setting
- On-Chip Adjustable Fixed DAC Reference voltage with
2-bit Logic Input Selects from Four Fixed Reference
Voltages (0.6V, 0.9V, 1.2V, 1.5V)
- Reference can be Changed Dynamically
- Can use an External Voltage Reference
Overcurrent Protection
Multi-tiered Overvoltage Protection
- OVP Pin to Drive Optional Crowbar Device
Selectable Operation Frequency up to 1.5MHz per phase
Digital Soft-Start
Capable of Start-up in a Pre-Biased Load
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
High Current DDR/Chipset core voltage regulators
High Current, Low voltage DC/DC converters
High Current, Low voltage FPGA/ASIC DC/DC converters
Ordering Information
PART NUMBER*
PART MARKING
TEMERATURE (°C)
PACKAGE
PKG. DWG. #
ISL6308CRZ (Note)
ISL6308CRZ
0 to 70
40 Ld 6x6 QFN (Pb-free)
L40.6x6
ISL6308IRZ (Note)
ISL6308IRZ
-40 to 85
40 Ld 6x6 QFN (Pb-free)
L40.6x6
ISL6308EVAL1
Evaluation Platform
* Add “-T” suffix for tape and reel.
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.
Data Sheet
October 19, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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.
相關PDF資料 |
PDF描述 |
|---|---|
| ISL6308EVAL1 | Three-Phase Buck PWM Controller with High Current Integrated MOSFET Drivers |
| ISL6308 | Quadruple 2-Input Exclusive-OR Gates 14-SOIC -40 to 85 |
| ISL6308CRZ | Three-Phase Buck PWM Controller with High Current Integrated MOSFET Drivers |
| ISL6308CRZ-T | Quadruple 2-Input Exclusive-OR Gates 14-SOIC -40 to 85 |
| ISL6308IRZ-T | Three-Phase Buck PWM Controller with High Current Integrated MOSFET Drivers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL6308IRZ-T | 功能描述:電壓模式 PWM 控制器 DAC-LESS MULTI-PHS PWM CNTRLR W/3-DRVRS RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| ISL6308IRZ-TR5453 | 制造商:Intersil Corporation 功能描述:STD. ISL6308IRZ-T WITH GOLD BOND WIRE ONLY - Tape and Reel |
| ISL6310CRZ | 功能描述:電壓模式 PWM 控制器 W/ANNEAL 2-PH PWM CNTRLR W/2-DRVRS RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| ISL6310CRZ-T | 功能描述:電壓模式 PWM 控制器 W/ANNEAL 2-PH PWM CNTRLR W/2-DRVRS RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| ISL6310EVAL1Z | 功能描述:EVALUATION BOARD FOR ISL6310 RoHS:是 類別:編程器，開發系統 >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩壓器拓撲結構:升壓 頻率 - 開關:3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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