回到顶部

MAXREFDES1189: 7.5W 24V Offline Flyback Converter Using the MAX17595

MAXREFDES1189

参考设计免责声明 参照  重要声明和免责声明  涵盖参考设计和其他Maxim资源

描述

The MAX17595 is a peak-current-mode controller for designing wide input-voltage flyback regulators. The MAX17595 offers optimized input thresholds for universal input AC-DC converters and telecom DC-DC (36V to 72V input range) power supplies. It contains a built-in gate driver for an external n-channel MOSFET. The MAX17595 houses an internal error amplifier with 1% accurate reference, eliminating the need for an external reference. The switching frequency is programmable from 100kHz to 1MHz with an accuracy of 8%, allowing optimization of magnetic and filter components, resulting in compact and cost-effective power conversion. For EMI-sensitive applications, the MAX17595 incorporates a programmable frequency dithering scheme, enabling low-EMI spread-spectrum operation. Users can start the power supply precisely at the desired input voltage, implement input overvoltage protection, and program soft-start time. A programmable slope compensation scheme is provided to ensure stability of the peak current-mode control scheme. Hiccup-mode overcurrent protection and thermal shutdown are provided to minimize dissipation in overcurrent and overtemperature fault conditions.

特征

  • Programmable Switching Frequency Allows Optimization of the Magnetic and Filter Components, Resulting in Compact, Cost-Effective, Efficient Isolated/Nonisolated Power Supplies
  • 100kHz to 1MHz Programmable Switching Frequency with Optional Synchronization
  • Peak Current Mode Control Provides Excellent Transient Response—Offline (Universal Input AC) and Telecom (36V to 72V) Flyback Controller
  • Programmable Frequency Dithering Enables Low EMI Spread-Spectrum Operation
  • Integrated Protection Features Enhance System Reliability
  • Adjustable Current Limit with External Current Sense Resistor
  • Fast Cycle-By-Cycle Peak Current Limiting Hiccup-Mode Short-Circuit Protection
  • Overtemperature Protection
  • Programmable Soft-Start and Slope Compensation
  • Input Overvoltage Protection

Icon

设计, 制作, 测试

图中的电路板已经完成封装和测试。不可售。

 

示意图

PCB布局

物料清单(BOM)

试验结果

参数化

输入类型 Vin(Min) Vin(Max) Iout(Max) 单路/多路输出 Vout(V) Pout(W) 隔离/非隔离 拓扑
AC 176 284 0.313 - 24 7.5 Isolated Flyback

参数化

输入类型 AC
Vin(Min) 176
Vin(Max) 284
Iout(Max) 0.313
单路/多路输出 -
Vout(V) 24
Pout(W) 7.5
隔离/非隔离 Isolated
拓扑 Flyback

Maxim设备 (1)

器件号 名称 产品线 购买 设计套件和评估模块
MAX17595 峰值电流模式控制器,用于构建反激和boost稳压器 隔离电源 立即购买 Design Kits

Maxim设备 (1)

器件号 产品线
隔离电源
峰值电流模式控制器,用于构建反激和boost稳压器

设计资料 (5)

标题 类型 尺寸 日期
maxrefdes1189_bom PDF 66KB 2018-08-04
MAXREFDES1189 - 7.5W 24V Offline Flyback Converter Using the MAX17595 PDF 511KB 2018-08-04
maxrefdes1189_pcb PDF 1MB 2018-08-04
maxrefdes1189_schematic PDF 273KB 2018-08-04
TTS MAXREFDES Test Results Template_Rev 0_0318 PDF 469KB 2018-08-04
日期 类型
2018-08-04

maxrefdes1189_bom

(PDF, 66KB)

2018-08-04

MAXREFDES1189 - 7.5W 24V Offline Flyback Converter Using the MAX17595

(PDF, 511KB)

2018-08-04

maxrefdes1189_pcb

(PDF, 1MB)

2018-08-04

maxrefdes1189_schematic

(PDF, 273KB)

2018-08-04

TTS MAXREFDES Test Results Template_Rev 0_0318

(PDF, 469KB)

MAXREFDES1189 相关视频

查看所有视频