Microchip Technology MCP1631 高速 PWM 控制器
Microchip MCP1631 是一款基于高速微控制器 (MCU) 的脉宽调制器 (PWM) 控制器，旨在帮助设计人员开发智能电力系统。 结合可轻松编程的 MCU 使用时， MCP1631 可控制电力系统中调节输出电压或电流的空占比。 MCU 可调节输出电压或电流、开关频率以及最大空占比。 MCP1631 可为多种化学介质的电池充电，包括锂离子、镍氢、镍镉和铅酸电池。 设计人员可使用具有小型 MCU 的 MCP1631 来开发智能照明设计和可编程 SEPIC 拓扑电压和电流源。 MCP1631 的集成设计还可为电池充电器或恒流源应用提供信号调节和保护功能。 这些保护功能包括内部过温保护和欠压锁闭 (UVLO) 保护。
特性
- Programmable Switching Battery Charger Designs
- High-Speed Analog PWM Controller (2MHz Operation)
- Combine with Microcontroller for “Intelligent” Power System Development
- Peak Current Mode Control (MCP1631)
- Voltage Mode Control (MCP1631V)
- High Voltage Options Operate to +16V Input
- MCP1631HV Current Mode
- MCP1631VHV Voltage Mode
- Regulated Output Voltage Options
- +5.0V or +3.3V
- 250mA maximum current
- External Oscillator Input sets Switching Frequency and Maximum Duty Cycle Limit
- External Reference Input Sets Regulation Voltage or Current
- Error Amplifier, Battery Current ISNS Amplifier, Battery Voltage VSNS Amplifier Integrated
- Integrated Overvoltage Comparator
- Integrated High Current Low Side MOSFET Driver (1A Peak)
- Shutdown mode reduces IQ to 2.4μA (typical)
- Internal Overtemperature Protection
- Undervoltage Lockout (UVLO)
- Package Options
- 4mm x 4mm 20-Lead QFN (MCP1631/MCP1631V only)
- 20-Lead TSSOP (All Devices)
- 20-Lead SSOP (All Devices)
应用
- High Input Voltage Programmable Switching Battery Chargers
- Supports Multiple Chemistries Li-Ion, NiMH, NiCd Intelligent and Pb-Acid
- LED Lighting Applications
- Constant Current SEPIC Power Train Design
- USB Input Programmable Switching Battery Chargers
发布日期: 2016-09-16
| 更新日期: 2022-03-11