PowerOne ZY2120总线编程POL数字稳压方案

PowerOne 公司的ZY2120是智能的全编程降压点负载(POL)DC/DC转换模块,集成了数字电源转换器和功率管理单元. ZY2120输入电压为8V到14V,连续输出电流20A,可编程输出电压0.5V-5.5V,并有富余量和数字电流共享. ZY2120具有过压,过流,欠压和超温保护,功率良好信号跟踪输出电压,具有多领域应用,包括具有中间总线架构(IBA)的低压高密度系统,用于高性能DSP,FPGA,ASIC和微处理器的点负载稳压器,工业计算,服务器和存储以及宽带,网络,光纤和无线通信系统等.本文介绍了ZY2120主要特性,优势和三独立输出应用电路图以及多输出应用框图和模块和外接滤波器连接图.

The ZY2120 is an intelligent, fully programmable step-down point-of-load DC-DC module integrating digital power conversion and power management. The ZY2120 eliminates the need for external components for sequencing, tracking, protection, monitoring, and reporting. Performance parameters of the ZY2120 are programmable by pin strapping and an external resistor, and can be changed by the user at any time during product development and service without a need for a communication bus.

ZY2120主要特性:
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RoHS lead free and lead-solder-exempt products are available
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Wide input voltage range: 8V–14V
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High continuous output current: 20A
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Wide programmable output voltage range: 0.5V–5.5V
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Active digital current share
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Output voltage margining
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Overcurrent and overtemperature protections
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Overvoltage and undervoltage protections, and Power Good signal tracking the output voltage setpoint
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Tracking during turn-on and turn-off with guaranteed slew rates
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Sequenced and cascaded modes of operation
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Single-wire line for frequency synchronization between multiple POLs
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Programmable feedback loop compensation
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Differential output voltage sense
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Enable control
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Flexible fault management and propagation
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Start-up into the load pre-biased up to 100%
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Current sink capability
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Real-time current measurements, monitoring, and reporting
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Industry standard size through-hole single-in-line package: 1.6”x0.41”
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Low height of 0.84”
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Wide operating temperature range: 0 to 70ºC
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UL 60950-1, 1st Edition CAN/CSA-C22.2 No. 60950-1-03, 1st Edition EN 0950-1/A11:2004, IEC 60950-1:2001 (pending)

ZY2120优势:
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Integrates digital power conversion with intelligent power management
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Eliminates the need for external power management components and communication bus
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Completely programmable via pin strapping and one external resistor
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One part that covers all applications
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Reduces board space, system cost and complexity, and time to market

ZY2120应用:
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Low voltage, high density systems with Intermediate Bus Architectures (IBA)
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Point-of-load regulators for high performance DSP, FPGA, ASIC, and microprocessor applications
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Industrial computing, servers, and storage
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Broadband, networking, optical, and wireless communications systems
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Active memory bus terminators

图1.Z1Y2120外形图

Typical Application

图2.三个独立输出的ZY2120应用电路图:中间总线电压从8V到14V

图3.采用数字功率管理器和I2C接口的多输出应用框图


图4.POL 模块和外接滤波器连接图