Microchip Technology MCP1912x PWM控制器
Microchip MCP1912x PWM控制器是高度集成的混合信号低侧同步控制器，工作电压范围为4.5V至42V。这些控制器支持开发灵活的电源，该类电源可通过最少的外部元件并根据目标应用进行完美的配置。MCP1912x控制器采用独特的控制环路架构，可实现从恒定电流到恒定电压操作的无缝动态转换。这些控制器包含两个独立的外部控制环路，可通过单独的反馈网络和单独的基准进行配置。MCP1912x控制器非常适合用于电池充电应用、LED照明系统以及低侧开关PWM控制器。
The Microchip Technology MCP19124 is available in 4mm x 4mm QFN-24 and 5mm x 5mm QFN-28 packages. The MCP19125 is packaged in a 5mm x 5mm QFN-24.
特性
- Smooth, dynamic transitions from constant-current to constant-voltage operation using the unique control loop architecture
- Dynamically adjustable output current and output voltage over a wide operating range
- Wide 4.5V to 42.0V operating voltage range
- Analog peak-current mode Pulse-Width Modulation (PWM) control
- Integrated 8-Bit PIC® Microcontroller
- Significant configurability: adjustable output voltage, output current, MOSFET deadtime, leading-edge blanking time, thermal responses, slope compensation, over-current protection, over and under-voltage lockout levels
- I2C communication interface
- Available fixed frequency or quasi-resonant operation, adjustable 31kHz to 2MHz
- 13 GPIO
- Integrated synchronous low-side MOSFET drivers
- Integrated high voltage linear regulator, with external output
- Integrated temperatures sense diode
- Integrated 10-bit ADC
- Minimal external components needed
- Custom algorithm support
- Topologies supported include Boost, SEPIC, Flyback, and Cuk
- Package options
- MCP19124: QFN-24, QFN-28
- MCP19125: QFN-24.
应用
- Battery chargers
- LED lighting systems
- Low-side switch PWM controllers
相关工具
Microchip Technology MCP19125反激式电池充电器评估板
非常适合用于电池充电应用、LED照明系统以及任何其他低侧开关PWM。
MCP1912x PWM控制器框图
发布日期: 2017-11-21
| 更新日期: 2022-04-05