NXP FS5600汽车应用双路降压稳压器和控制器解决方案
NXP公司的FS5600是双路降压稳压器和控制器,集成了电池连接的DC/DC控制器和外接FET以及内部FET的电池连接DC/DC转换器.器件提供安全特性如单独的电压监视器,视窗看门狗计时器,经由ERRMON和FCCU的I/O监测和内置自测.器件具有两个高压降压转换器:外接FET的具有900mA栅极驱动电流;内部FET的具有3A+的负载电流能力.两者具有±2 %输出精度,开关频率从250kHz到3MHz.器件采用高效PFM模式.器件可有增强ASIL B, ASIL B和QM产品,器件有2个内部和多达4个高精度外接电压监视器,器件具有2 x PGOOD和1 x FS0B输出,工作温度–40 C到150 C TJ,32引脚5x5mm QFN封装,具有AEC-Q100 Grade-1规范.本文介绍了FS5600主要特性和优势,功能框图,内部框图和时钟管理系统框图, 典型应用电路图以及评估板KITFS5600FRDMEVM主要特性和电路图.
The FS5600 integrates a battery connected DC-DC controller with external FETs and a
battery connected DC-DC converter with internal FETs. In addition, it offers functional
safety features such as independent voltage monitors, windowed watchdog timer, I/O
monitoring via ERRMON and FCCU and built-in self-test.
FS5600主要特性和优势:
•2 x High-Voltage Buck Converters:
–Buck Controller - External FETs - 900 mA gate drive current
–Buck Regulator - Internal FETs - 3 A+ load capability
–±2 % Output Accuracy
–250 kHz to 3 MHz switching frequency
•High-efficiency PFM mode
•Safety Features:
–Available in Enhanced ASIL B, ASIL B, and QM variations..
