参数资料
| 型号： | ISL6521EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD 1 ISL6521 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，LDO 步降 |
| 输出及类型： | 4，非隔离 |
| 功率 - 输出： | 13.5W |
| 输出电压： | 1.5V，2.5V，3.3V，1.8V |
| 电流 - 输出： | 5A，1A，1A，120mA |
| 输入电压： | 4.5 ~ 5.5 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 300kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL6521 |
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Power Management Controller For Mixed-Voltage
FPGA Based Systems
Application Note
July 10, 2006
AN1247.0
Author: Ross O. Staffhorst
Introduction
Field Programmable Gate Arrays (FPGAs) are providing a
path for rapid prototyping and implementation of digital
systems. The classes of programmable logic devices vary
based on memory utilization and configuration. Power
management systems designed to support them must
stand-up to potential programming enhancements which
boost their power requirements. Responding to the changing
needs of the industry, Intersil introduces the ISL6521
controller to power mixed-voltage FPGAs.
The versatility of the ISL6521 lends well to powering most
any embedded processor or logic device which require a
regulated high current, low voltage supply and up to three
independent, lower current supplies.
Intersil ISL6521
The ISL6521 regulates four output voltages and provides
simple protection functions. The PWM controller drives two
The ISL6521 features overcurrent protection of the switching
converter and simple undervoltage protection of the linear
controllers. For a more detailed description of the ISL6521
functionality, refer to the ISL6521 Data Sheet [1].
The ISL6521EVAL1 Reference Design
The ISL6521EVAL1 evaluation board is intended to provide
a versatile platform for evaluation of surface mount and thru
hole components. The evaluation board is designed to meet
the output voltage and current specifications shown in
Table 1. The synchronous buck converter can sustain 5A of
continuous load current and handle 5A step, 2.5A/ μ s load
current transients. Two linear regulators are designed to
supply 1A of continuous load current with the third linear
regulator providing 100mA with no external pass device. The
board is implemented on a 1-ounce, 2-layer, printed circuit
board. See pages 5-8 for schematic, bill of materials, and
layout plots.
TABLE 1. ISL6521EVAL1 DESIGN PARAMETERS
external N-Channel MOSFETs in a synchronous buck
converter topology. This output is intended to power the
internal core logic (V CCINT ). The integrated linear controllers
can drive up to 120mA directly, or up to 3A with an external
NPN pass transistor. The linear controllers typically power
the I/O bank (V CCO ), input buffer reference voltage (V REF ),
and the auxiliary logic (V CCAUX ). The power management
block diagram for an FPGA is shown in Figure 1. Integrated
high-bandwidth error amplifiers and an accurate internal
voltage reference insure a ±2% static voltage regulation
tolerance over line, load and temperature ranges.
PARAMETER
Buck Regulator:
Static Regulation VOUT1
Continuous Load Current
Load-Current Transient
Linear Regulators:
Static Regulation VOUT2
Continuous Load Current
Static Regulation VOUT3
Continuous Load Current
MAX
1.530V
5A
2.5A/ μ s
3.366V
1A
2.550V
1A
MIN
1.470V
3.234V
2.450V
PWM
Controller
V CCINT
Core Logic
Static Regulation VOUT4
Continuous Load Current
1.836V
120mA
1.764V
100mA
Linear
V CCO
I/O Logic
Quick Start Evaluation
Circuit Setup
Linear
Linear
V CCAUX
V REF
Aux Logic
Buffer
Reference
Connect a +5V bench top power supply to the +5V and GND
turrets located next to the Intersil logo, see Figure 2. Each
output has a similar pair of turrets labeled VOUTx and GND.
Each output can be exercised using either resistive or
electronic loads connected across these points. Once the
external supply and loads are connected to the board, the
+5V supply can be energized. A light emitting diode, D2,
ISL6521
FPGA
should burn red to indicate power has been applied to the
board. If D2 is not red, power-down the supply and check all
FIGURE 1. FPGA POWER MANAGEMENT BLOCK DIAGRAM
external connections.
1
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. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相关PDF资料 |
PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6521EVAL1Z | 功能描述:EVALUATION BOARD 1 ISL6521 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6521IBZ | 功能描述:电压模式 PWM 控制器 4 IN 1 PWM/LINEAR CNTRLR 5V RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| ISL6521IBZ-T | 功能描述:电压模式 PWM 控制器 4 IN 1 PWM/LINEAR CNTRLR 5V RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| ISL6522ACB | 功能描述:IC REG CTRLR BST PWM VM 14-SOIC 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) |
| ISL6522ACB-T | 功能描述:IC REG CTRLR BST PWM VM 14-SOIC 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) |
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