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| 型号： | MCP1631RD-MCC1 |
| 厂商： | Microchip Technology |
| 文件页数： | 11/54页 |
| 文件大小： | 0K |
| 描述： | REFERENCE DESIGN FOR MCP1631HV |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | MCP1631HV，PIC16F883 |
| 主要属性： | 1 ~ 2 芯锂离子电池，1 ~ 4 芯镍镉/镍氢电池 |
| 次要属性： | 状态 LED |
| 已供物品： | 板，CD |
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MCP1631HV MULTI-CHEMISTRY
BATTERY CHARGER
REFERENCE DESIGN
Chapter 2. Installation and Operation
2.1
2.2
INTRODUCTION
The MCP1631HV Multi-Chemistry Battery Charger demonstrates Microchip’s
high-speed Pulse Width Modulator (PWM), MCP1631HV, used in a multi-chemistry
battery charger application. When used in conjunction with a microcontroller, the
MCP1631HV will control the power system duty cycle to provide output voltage or
current regulation. The PIC16F883 microcontroller can be used to regulate output
voltage or set current, switching frequency and maximum duty cycle. The MCP1631HV
generates the duty cycle and provides fast overcurrent protection based upon various
external inputs. External signals include the switching frequency oscillator, the
reference voltage, the feedback voltage and the current sense. The output signal is a
square-wave pulse. The power train used for the MCP1631HV Multi-Chemistry Battery
Charger is a Single-Ended Primary Inductive Converter (SEPIC). The MCP1631HV
microcontroller is programmable, allowing the user to modify or develop their own
firmware routines to further evaluate the MCP1631HV Multi-Chemistry Battery Charger
in this application.
FEATURES
The MCP1631HV Multi-Chemistry Battery Charger has the following features:
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Input Operating Voltage Range - +5.3V to +16V
Maximum of 2A Charge Current for single cell Li-Ion
Charge NiMH, NiCd or Li-Ion Chemistries
Charge 1 cell or 2 cell Li-Ion Batteries in Series
Charge 1 cell to 5 cell NiMH or NiCd Batteries in Series
Drive one or two 1 Watt LEDs in series.
Select Chemistry and Cells using push-buttons
ON/OFF switch
Charge Status Indication
Programmable Charge Profile
Programmable Overvoltage Shutdown (1.8V/Cell for NiMH/NiCd or 4.4V/Cell for
Li-Ion)
? Complete “C” source code is provided
2.3
GETTING STARTED
The MCP1631HV Multi-Chemistry Battery Charger is fully assembled and tested for
charging one or two series Li-Ion Batteries, one to five series cell NiMH or NiCd
batteries, or driving one to two 1 Watt LEDs. The charge termination for Li-Ion is based
upon a percentage of fast charge current, the charge termination for NiMH is based on
a negative voltage change versus time or positive temperature change versus time.
This board requires the use of an external voltage source to charge the series
connected batteries with a range of +5.3V to +16V input. An external load and
thermistor is also required to evaluate the charger reference design.
? 2009 Microchip Technology Inc.
DS51791A-page 7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP1631RD-MCC2 | 功能描述:开关变换器、稳压器与控制器 MCP1631HV Multi-Chem BuckBst Chg Ref Dsgn RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MCP1631T | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:High-Speed, Pulse Width Modulator |
| MCP1631T-330E/ML | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:High-Speed, Pulse Width Modulator |
| MCP1631T-330E/SS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:High-Speed, Pulse Width Modulator |
| MCP1631T-330E/ST | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:High-Speed, Pulse Width Modulator |
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