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参数资料
| 型号： | IRDC3055 |
| 厂商： | International Rectifier |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | KIT W/IRU3055 5BIT 3PH BUCK CTRL |
| 标准包装： | 1 |
| 其它名称： | *IRDC3055 |
IRDC3055
IRU3055 EVALUATION BOARD USER GUIDE
INTRODUCTION
The IRU3055 is a 3-phase synchronous Buck controller
which provides high performance DC to DC converter for
high current and low voltage applications, such as power
supply for Intel or AMD processors. It can meet Intel
VRM 9.0 specifications. The IRU3055 features on-Board
DAC that programs the output voltage from 1.075V to
1.850V, loss-less short circuit protection, programmable
switching frequency, soft-start, 3-phase on-board
MOSFET drivers and PGood function, etc. The evalua-
tion board is designed to provide 60A load at 1.5V out-
put. The output voltage droop function is also included to
meet the Intel specification.
(see the IRU3055 data sheet for detailed description).
INPUT/OUTPUT CONNECTIONS
The following is the input/output connections:
Inputs:
JP1: Power input, +12V,+5V and GND
JP2: Power input, +IN and RETURN
JP3: 20-pin ATX connector
JP4: Jumper. The power input of converter. It can be con-
figured at +5V or +12V. Default is +12V input.
JP7: DAC input setting. '0' is set by using a 2-pin short
connector. Default setting is '1' for each input. Default
setting is 1.075V. To provide a 1.5V output, the pin "D4"
and "D0" should be set to '1' by using 2-pin short con-
SPECIFICATION DATA
V IN =12V
V OUT =1.5V @ (D4=0 and D0=0)
I OUT =60A
switching frequency Fs=150KHz
INSTRUCTIONS
Short Circuit Test
The IRU3055 provides hiccup mode current limit. It
senses the R DS(ON) of low side MOSFET in channel 1
and provides lossless over current protection. It can be
tested by shorting the output terminal to ground through
a short piece of wire.
V DROOP Function
In this demo-board, the voltage droop function is pro-
vided by default. The output voltage decreases as load
current increases. The output voltage versus load line
falls into the specification by INTEL.
nector.
The voltage droop function can be disabled by setting
resistor R33 to zero or to short. In that case, the IRU3055
Outputs:
JP5: +V OUT output
JP6: +GND output
JP8: PGood output
JP9: 3.3V input and 1.2V VID and VIDGood output
JP10: Tektronics probe test point
regulates the output voltage to the set voltage by the
DAC setting. The output voltage does not linearly de-
crease as load current increases.
Rev. 1.0
06/10/02
www.irf.com
1
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相关代理商/技术参数 |
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| IRDC3065 | 功能描述:LOW PWR SWTCH REG REF DESIGN KIT RoHS:否 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 |
| IRDC3073 | 功能描述:PWM CONTROLLER DESIGN KIT RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| IRDC3137 | 功能描述:KIT REFERENCE DESIGN W/IRU3137 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
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| IRDC3138EVAL | 制造商:IRF 制造商全称:International Rectifier 功能描述:EVALUATION BOARD USER GUIDE |
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