Installation and Operation
2.2
GETTING STARTED
The MCP1640 12V/50 mA Two Cells Input Boost Converter Reference Design is fully
assembled and tested to evaluate and demonstrate the MCP1640 family of products.
2.2.1
Powering the MCP1640 12V/50 mA Two Cells Input Boost
Converter Reference Design
The extended input range of the MCP1640 Input Boost Converter is 2.0 to 5.0V input.
Good efficiency is obtained by supplying from two cells (primary and secondary batter-
ies).
Input power connectors are placed on the left side of the board:
? V IN for positive power
? GND for negative power
The maximum input voltage should not exceed 5.0V. The output voltage will be out of
regulation for input voltages lower than 2.0V.
The output connector is called V OUT and is referenced to GND. The minimum output
current is 50 mA when the board is powered by two alkaline batteries that are close to
the end of their run time, at approximately 1V each.
2.2.2
Board Testing
Because this board is boosting the input voltage, the input current is greater than the
output current. The variable power supply for testing requires output capability of at
least 1A and a voltage range of 2.0V to 5V.
To test the board, follow these steps:
1. Connect the power at V IN and GND terminals of the board.
2. Set the power supply to 3.0V.
3. Connect a voltmeter and a 240 Ω /0.5W resistor between V OUT and GND
connectors, as shown in Figure 2-3 .
4. Check to be sure the voltmeter indicates 12V.
5. Set the power supply to 2.0V and verify if the output of the converter stays
regulated (V OUT = 12V).
Set 3.0V
PWR Supply
FIGURE 2-3:
Setup Circuit.
V-meter
MCP1640 12V/50 mA Two Cells Input Boost Converter Reference Design
R
? 2011 Microchip Technology Inc.
DS51999A-page 15
相关PDF资料
ARR-1276-NF RACK ALUMINUM RELAY 42" X 19"
ARR-1294-BT RACK ALUMINUM RELAY 77" X 23"
AS-203B SOCKET 12V AUTO W/SAFETY CAP
AS1102-T IC DRIVER LED TRIPLE 40MA SC70-6
AS1112C-BQFT IC DRIVER LED 16CHAN 32-TQFN
AS1113-BSST IC DRIVER LED 16-CHAN 24-SSOP
AS1117-BQFT IC DRIVER 64LED MOBILE 24-TQFN
AS1118-BQFT IC DRIVER 64LED W/DELAY 24-TQFN
相关代理商/技术参数
ARD00410 制造商:Microchip Technology Inc 功能描述:MCP16301 HIGH VOLTAGE CUK LED DRIVER BOARD - Boxed Product (Development Kits) 制造商:Microchip Technology Inc 功能描述:BOARD EVAL ANALOG MCP16301 制造商:Microchip Technology Inc 功能描述:MCP16301 High Voltage Cuk LED Driver Board, DEVTOOL - Analog
ARD00455 功能描述:MCP39F501 - Power Management, Energy/Power Meter Evaluation Board 制造商:microchip technology 系列:- 零件状态:有效 主要用途:电源管理,电度表/功率表 嵌入式:- 使用的 IC/零件:MCP39F501 主要属性:- 辅助属性:图形用户界面 所含物品:板,线缆 标准包装:1
ARD00514 功能描述:MCP19035 - DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board 制造商:microchip technology 系列:- 零件状态:有效 主要用途:DC/DC,步降 输出和类型:1,非隔离 功率 - 输出:- 电压 - 输出:5V 电流 - 输出:5A 电压 - 输入:8 V ~ 26 V 稳压器拓扑:降压 频率 - 开关:600kHz 板类型:完全填充 所含物品:板 使用的 IC/零件:MCP19035 标准包装:1
ARD00550 功能描述:PIC16F1503, UCS1002 - Power Management, Battery Charger Evaluation Board 制造商:microchip technology 系列:- 零件状态:有效 主要用途:电源管理,电池充电器 嵌入式:是,MCU,8 位 使用的 IC/零件:PIC16F1503,UCS1002 主要属性:USB 充电端口 辅助属性:- 所含物品:板 标准包装:1
ARD00598 功能描述:MCP1661 - DC/DC, Step Up 1, Isolated Outputs Evaluation Board 制造商:microchip technology 系列:- 零件状态:有效 主要用途:DC/DC,步升 输出和类型:1,隔离 功率 - 输出:- 电压 - 输出:5V 电流 - 输出:200mA 电压 - 输入:4.25 V ~ 5.25 V 稳压器拓扑:回扫 频率 - 开关:500kHz 板类型:完全填充 所含物品:板 使用的 IC/零件:MCP1661 标准包装:1
ARD00609 功能描述:MCP19111 - DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board 制造商:microchip technology 系列:- 零件状态:有效 主要用途:DC/DC,步降 输出和类型:1,非隔离 功率 - 输出:- 电压 - 输出:1.2V 电流 - 输出:20A 电压 - 输入:8 V ~ 14 V 稳压器拓扑:降压 频率 - 开关:500kHz 板类型:完全填充 所含物品:板 使用的 IC/零件:MCP19111 标准包装:1
ARD00777 功能描述:CURRENT SHARING REFERENCE DESIGN 制造商:microchip technology 系列:* 零件状态:在售 标准包装:1
ARD00797 功能描述:MCP16251 SINGLE CELL BOOST WITH 制造商:microchip technology 系列:- 零件状态:在售 主要用途:DC/DC,步升 电压 - 输出:3.3V 电流 - 输出:125mA 电压 - 输入:0.35 V ~ 5.5 V 稳压器拓扑:升压 频率 - 开关:500kHz 板类型:完全填充 所含物品:板 使用的 IC/零件:MCP16251 标准包装:1