Lattice LPTM10－12107平台管理器开发方案

Lattice公司的LPTM10-12107是平台管理器,内部有48个宏单元CPLD,集成了板电源管理如热插拔,加电顺序,监测,复位产生,调整和富余度)以及数字板管理工能如复位子系统,非易失性误差记录,无缝逻辑,板数字信号监测和控制,系统总线接口等),提供12个单独模拟输入通路,监测多达12个电源测试点,每个电源输出电压采用数字闭环控制模式,在各种负载条件下误差0.5%内.本文介绍了Lattice平台管理器主要特性,方框图,典型应用以及Lattice平台管理器开发套件主要特性,电路图和材料清单.
The Lattice Platform Manager integrates board power management (hot-swap, sequencing, monitoring, reset generation, trimming and margining) and digital board management functions (reset tree, non-volatile error logging, glue logic, board digital signal monitoring and control, system bus interface, etc.) into a single integrated solution. The Platform Manager device provides 12 independent analog input channels to monitor up to 12 power supply test points. Up to 12 of these input channels can be monitored through differential inputs to support remote ground sensing. Each of the analog input channels is monitored through two independently programmable comparators to support both high/low and in-bounds/ out-of-bounds (window-compare) monitor functions. Up to six general purpose 5V tolerant digital inputs are also provided for miscellaneous control functions. There are 16 open-drain digital outputs that can be used for controlling DC-DC converters, low-drop-out regulators (LDOs) and opto-couplers, as well as for supervisory and general purpose logic interface functions. Four of these outputs (HVOUT1-HVOUT4) may be configured as high-voltage MOSFET drivers. In highvoltage mode these outputs can provide up to 12V for driving the gates of n-channel MOSFETs so that they can be used as high-side power switches controlling the supplies with a programmable ramp rate for both ramp up and ramp down.
Lattice平台管理器主要特性:
Precision Voltage Monitoring Increases Reliability
• 12 independent analog monitor inputs
•...