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参数资料
| 型号： | IRDC3899 |
| 厂商： | International Rectifier |
| 文件页数： | 2/17页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL SUPIRBUCK IR3899 |
| 产品培训模块： | SupIRBuck? Family and POL Design Tools Overview |
| 标准包装： | 1 |
| 系列： | SupIRBuck™ |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.2V |
| 电流 - 输出： | 9A |
| 输入电压： | 12V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 600kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | IR3899 |
IRDC3899-P1V2
CONNECTIONS and OPERATING INSTRUCTIONS
A well regulated +12V input supply should be connected to VIN+ and VIN-. A maximum of 9A load should be
connected to VOUT+ and VOUT-. The inputs and output connections of the board are listed in Table I.
IR3899 has only one input supply and internal LDO generates Vcc from Vin. If operation with external Vcc
is required, then R15 can be removed and external Vcc can be applied between Vcc+ and Vcc- pins. Vin pin
and Vcc/LDO_Out pins should be shorted together for external Vcc operation.
The output can track voltage at the Vp pin. For this purpose, Vref pin is to be connected to ground (use zero
ohm resistor for R21). The value of R14 and R28 can be selected to provide the desired tracking ratio
between output voltage and the tracking input.
Table I. Connections
Connection
VIN+
VIN-
Vout+
Vout-
Vcc+
Vcc-
Enable
PGood
AGnd
Signal Name
Vin (+12V)
Ground of Vin
Vout(+1.2V)
Ground for Vout
Vcc/ LDO_Out Pin
Ground for Vcc input
Enable
Power Good Signal
Analog ground
LAYOUT
The PCB is a 4-layer board (2.23”x2”) using FR4 material. All layers use 2 Oz. copper. The PCB
thickness is 0.062”. The IR3899 and other major power components are mounted on the top side of the
board.
Power supply decoupling capacitors, the bootstrap capacitor and feedback components are located
close to IR3899. The feedback resistors are connected to the output at the point of regulation and are
located close to the SupIRBuck IC. To improve efficiency, the circuit board is designed to minimize the
length of the on-board power ground current path.
12/5/2012
2
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相关代理商/技术参数 |
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| IRDC3899-P1V2 | 制造商:IRF 制造商全称:International Rectifier 功能描述:USER GUIDE FOR IR3899 EVALUATION BOARD |
| IRDC5001-LS370W | 制造商:International Rectifier 功能描述: |
| IRDC5001-LS48V | 功能描述:KIT EVAL ORING DEMO BOARD/IR5001 RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| IRDCIP1001-A | 功能描述:CONV SGL PHA SYNC BUCK 3.3-4.5V RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:iPOWIR™ 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 |
| IRDCIP1001-B | 功能描述:CONV SGL PHA SYNC BUCK 5-12V 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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