Instructions for ANALOG DEVICES models including: MAX16163, MAX16164, MAX16132, MAX16133, MAX16134, MAX16135, LTC2937, MAX16163 Nano Power Controller, MAX16163, Nano Power Controller, Power Controller, Controller
Supervisory Devices Complementary Parts Guide for Xilinx FPGAs Modern FPGA designs leverage advance fabrication techniques, enabling smaller process geometries and lower core voltages. This trend, however, necessitate the use of multiple voltage rails to accommodate legacy I/O standards. To guarantee system stability and prevent unexpected behavior, each of these voltage rails requires dedicated supervision. Analog Devices offers a comprehensive portfolio of voltage monitoring solutions, encompassing a wide range; from basic single-channel to feature-rich multi-voltage supervisors boasting industry-leading accuracy (up to ±0.3% across temperatures). The core, I/O, and auxiliary voltage requirements for various Xilinx® FPGA families are presented in a clear and easy-to-reference table. Core voltage ranges typically span from 0.72 V to 1 V, while I/O voltage levels can vary between 1 V and 3.3 V. Lower core voltages demand high threshold accuracy for reliability Multi-voltage Supervisors with Xilinx FPGAs Xilinx FPGAs Xilinx FPGA Family Core Voltage (V) Auxiliary Voltage (V) I/O Voltage (V) Virtex UltraScale+ Virtex UltraScale Virtex 7 Kintex UltraScale+ Kintex UltraScale Kintex 7 Artix UtraScale+ Artix 7 Spartan Ultrascale+ Spartan 7 0.85, 0.72, 0.90 0.95, 1 1, 0.90 0.85, 0.72, 0.90 0.95, 0.90, 1.0 1, 0.90, 0.95 0.85, 0.72 1.0, 0.95, 0.90 0.85, 0.72, 0.90 1, 0.95 1.8 1.8 1.8, 2.0 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 1.2, 1.35, 1.5, 1.8, 2.5, 3.3 ADI Multi-voltage Supervisors Number of Voltages Monitored Part Number Voltages Monitored (V) Accuracy (%) 1 MAX16132 1.0 to 5.0 <1 1 MAX16161, MAX16162 1.7 to 4.85, 0.6 to 4.85 <1.5 2 MAX16193 0.6 to 0.9, 0.9 to 3.3 <0.3 3 MAX16134 5.0, 4.8, 4.5, 3.3, 3.0, 2.5, 1.8, 1.2, 1.16, 1.0 <1 4 LTC2962, LTC2963, LTC2964 5.0, 3.3, 2.5, 1.8, 1.5, 1.2, 1.0, 0.5V <0.5 5.0, 4.8, 4.5, 3.3, 3.0, 4 MAX16135 2.5, 2.3, 1.8, 1.5, 1.36, <1 1.22, 1.2, 1.16, 1.0 4 MAX16060 3.3, 2.5, 1.8, 0.62 (adj) <1 6 LTC2936 0.2 to 5.8 (Programmable) <1 MAX16161: nanoPower Supply Supervisor with Glitch-Free Power-Up and Manual Reset 1 ©2024 Analog Devices, Inc. All Rights Reserved. MAX16193: ±0.3% Accuracy Dual-Channel Window-Detector Supervisory Circuit LTC2963: ±0.5% Quad Configurable Supervisor with Watchdog Timer MAX16135: ±1% Low-Voltage, Quad-Voltage Window Supervisor Window Voltage Supervisors Window voltage supervisors are used to ensure FPGAs operate within a safe voltage specification range. They do this by having undervoltage (UV) and overvoltage (OV) thresholds and generating a reset output signal if it goes beyond the tolerance window to avoid system errors and prevent damage to your FPGAs and other processing devices. There are two main things to consider when choosing a window voltage supervisor: Tolerance and Threshold Accuracy. Tolerance is the range around the nominal monitored value which sets the overvoltage and undervoltage thresholds. While, Threshold Accuracy, typically expressed in percentage, is the degree of the conformance of the actual to the target reset thresholds. Undervoltage and overvoltage threshold variation with Threshold Accuracy OV_TH (max) OV_TH OV_TH (min) VIN_NOM UV_TH (max) UV_TH UV_TH (min) +ACC% -ACC% +TOL% -TOL% +ACC% -ACC% Selecting the Right Tolerance Window Choosing a window supervisor with the same tolerance as the core voltage requirement can lead to malfunctions due to threshold accuracy. Setting the same tolerance with the operating requirement of the FPGA can trigger a reset output near the maximum overvoltage threshold OV_TH (max) and minimum undervoltage threshold UV_TH (min). The figure below illustrates tolerance setting (a) same with core voltage tolerance vs. (b) within the core voltage tolerance. Impact of Threshold Accuracy Compare two window voltage supervisors with different threshold accuracy monitoring the same core voltage supply rail. The supervisor with higher threshold accuracy will deviate less from the threshold limits in comparison to voltage supervisors with lower accuracy. Examining the figure below, window supervisors with lower accuracy (a) creates a narrow power supply window since the reset output signal can assert anywhere within the UV and OV monitoring range. In applications with unreliable power supply regulation, this could pose a more sensitive system prone to oscillation. On the other hand, supervisors with high threshold accuracy (b) expands this range to provide a wider safe operating range for your power supply which improves the systems overall performance. 2 ©2024 Analog Devices, Inc. All Rights Reserved. Power Supply Sequencing Modern FPGAs utilize multiple voltage rails for optimal performance. Defined power-up and power-down sequencing requirement is crucial for FPGA reliability. Improper sequencing introduce glitches, logic errors, and even permanent damage to sensitive FPGA components. Analog Devices offers a comprehensive range of supervisory/sequencing circuits specifically designed to address the challenges of FPGA power management. These devices orchestrate the power-up and powerdown sequence of various voltage rails, guaranteeing that each rail reaches its designated voltage level within its required ramp time and order. This power management solution minimizes inrush current, prevents voltage undershoot/overshoot conditions, and ultimately safeguards the integrity of your FPGA design ADI Supervisory and Sequencing Solutions Number of Supplies Monitored Part Number Operating Vrange Threshold Accuracy Sequence Programming Method Package 1: cascadable MAX16895 1.5 to 5.5V 1% Up R's, C's 6 uDFN 1: cascadable MAX16052, MAX16053 2.25 to 28V 1.8% Up R's, C's 6 SOT23 2: cascadable MAX6819, MAX6820 0.9 to 5.5V 2.6% Up R's, C's 6 SOT23 2 MAX16041 3 MAX16042 2.2 to 28V 2.7% and 1.5% Up 4 MAX16043 R's, C's 16 TQFN 20 TQFN 24 TQFN 4: cascadable 5: cascadable MAX16165, MAX16166 MAX16050 MAX16051 2.7 to 16V 2.7 to 16V 0.80% 1.5% Up, ReversePower Down Up, ReversePower Down R's, C's R's, C's 20 WLP, 20L TQFN 28 TQFN 6: cascadable LTC2937 4.5 to 16.5V <1.5% Programmable I2C, SMBus 28 QFN 8 ADM1168 3 to 16V <1% Programmable SMBus 32 LQFP 8 ADM1169 3 to 16V <1% Programmable SMBus 32 LQFP, 40 LFCSP 10: cascadable (max of 4) ADM1260 3 to 16V <1% Programmable SMBus 40 LFCSP 12: cascadable ADM1166 3 to 16V <1% Programmable SMBus 40 LFCSP, 48 TQFP 17: cascadable ADM1266 3 to 15V 3 ©2024 Analog Devices, Inc. All Rights Reserved. <1% Programmable PMBus 64 LFCSP Power Supply Sequencing for AMD Kintex Ultrascale+ with voltage monitoring using MAX16193 supervisory circuit MAX16165/MAX16166: Highly Integrated, 4-Channel Sequencer and Supervisor Cascaded Power Supply Sequencing for AMD Zynq 7015 Power Supply Sequencing requiring 8 Power Regulators using MAX16165Microsoft PowerPoint for Microsoft 365