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参数资料
| 型号： | ISL6244EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD ISL6244 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 稳压器拓扑结构： | 降压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL6244 |
?
ISL6244EVAL1 Multi-phase Evaluation Board
Setup Procedure
Application Note
September 2003
AN1077
This document describes the setup procedure for the
ISL6244EVAL1 Rev B board for AMD Mobile K8 Processors.
Description
The AMD Hammer family microprocessors feature higher
clock speeds and greater device density than previous
product families. The power management solution for this
next generation family of microprocessors must contend with
lower core voltages, tighter transient specifications, and
higher peak current demands. Responding to the changing
power management needs of its customers, Intersil
introduces the ISL6244 controller to power the AMD
Hammer family microprocessors.
Intersil ISL6244 and ISL6207
The ISL6244EVAL1 Rev B is a versatile voltage regulator-
Features
? Multi-Phase Power Conversion
- 2, 3 or 4 Phase Operation
? Precision r DS(ON) Current Sharing
- Lossless
- Low Cost
? Precision CORE Voltage Regulation
- Differential Remote Output Voltage Sensing
- Programmable Reference Offset
- ± 1 % System Accuracy
? Programmable Droop Voltage
? Excellent Dynamic Response
- Combined Input Voltage Feed-Forward and Pulse-by-
Pulse Average Current Mode
down (VRD) design. The evaluation board comes configured
for 3-phase multi-phase buck operation, designed to meet
AMD Hammer Family Desktop Processor specifications. The
Ordering Information
PART NUMBER TEMP. ( o C)
PACKAGE
PKG. DWG. #
board layout supports removal or addition of the third and
fourth phases to support multiple applications. The ISL6244
controller features are specifically designed to compliment
ISL6244CR
ISL6244CRZ
0 to 70
0 to 70
32 Ld QFN
32 Lead-Free QFN
L32.5X5
L32.5X5
and support the Hammer Family processors. Interfaced with
ISL6207 drivers, the chipset forms a highly integrated
ISL6244HR
ISL6244HRZ
-10 to 100 32 Ld QFN
-10 to 100 32 Lead-Free QFN
L32.5X5
L32.5X5
solution for AMD Hammer processor applications.
The ISL6244 regulates output voltage and balances load
currents for two to four synchronous buck converter
channels. The controller features a 5-bit DAC which provides
a digital interface for accurate step down conversion over
the entire Hammer Family range of 0.800V to 1.550V. New
multi-phase family features include differential remote output
voltage sensing to improve regulation tolerance, pin-
NOTE: Add “-T” suffix for 32 QFN 5x5 Tape and Reel packages.
Pinout
ISL6244CR
(32 LEAD QFN 5X5)
TOP VIEW
adjustable reference offset for ease of implementation, VID-
32
31
30
29
28
27
26
25
on-the-Fly to respond to DAC changes during operation, and
optional load line regulation. For a more detailed description
of the ISL6244 functionality, refer to the data sheet [1].
The ISL6207 driver is chosen to drive two N-Channel power
MOSFETs in a synchronous-rectified buck converter
VID2
VID1
VID0
NC
1
2
3
4
24 PWM4
23 ISEN4
22 ISEN1
21 PWM1
channel. Each channel has a single logic input which
controls the upper and lower MOSFETs. Dead time is
optimized on both switching edges to provide shoot-thru
protection. Internal bootstrap circuitry only requires an
external capacitor and provides better enhancement of the
upper MOSFET. For a more detailed description of the
OFS
COMP
FB
NC
5
6
7
8
20 PWM2
19 GND
18 ISEN2
17 ISEN3
ISL6207, refer to the data sheet [1].
9
10
11
12
13
14
15
16
The Intersil multi-phase family driver portfolio continues to
expand with new selections to better fit our customer’s
needs.
1. Refer to our website for updated information, the ISL6207 data
sheet, and the ISL6244 data sheet: www.intersil.com .
NC = NO CONNECT
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright ? Intersil Americas Inc. 2003. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6244HR | 功能描述:IC REG CTRLR BUCK PWM 32-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6244HR-T | 功能描述:IC REG CTRLR BUCK PWM 32-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6244HRZ | 功能描述:电流型 PWM 控制器 VER OF ISL6244HR RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6244HRZ-T | 功能描述:电流型 PWM 控制器 VER OF ISL6244HR-T RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6246C WAF | 制造商:Intersil Corporation 功能描述: |
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