ANALOG DEVICES MAX16163 Nano Power Controller Instructions
- September 19, 2024
- Analog Devices
Table of Contents
Supervisory Devices Complementary Parts
Guide for Xilinx FPGAs
MAX16163 Nano Power Controller
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 resented 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.
Multi-voltage Supervisors with Xilinx FPGAs
Xilinx FPGAs
Xilinx FPGA Family| Core Voltage (V)| Auxiliary
Voltage (V)| I/O Voltage (V)
---|---|---|---
Virtex UltraScale+| 0.85, 0.72, 0.90| 1.8| 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Virtex UltraScale| 0.95, 1| 1.8| 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Virtex 7| 1, 0.90| 1.8, 2.0| 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Kintex UltraScale+| 0.85, 0.72, 0.90| 1.8| 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Kintex UltraScale| 0.95, 0.90, 1.0| 1.8| 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Kintex 7| 1, 0.90, 0.95| 1.8| 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Artix UtraScale+| 0.85, 0.72| 1.8| 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Artix 7| 1.0, 0.95, 0.90| 1.8| 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Spartan Ultrascale+| 0.85, 0.72, 0.90| 1.8| 1.0, 1.2, 1.35, 1.5, 1.8, 2.5, 3.3
Spartan 7| 1, 0.95| 1.8| 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
4| MAX16135| 5.0, 4.8, 4.5, 3.3, 3.0,
2.5, 2.3, 1.8, 1.5, 1.36,
1.22, 1.2, 1.16, 1.0| <1
4| MAX16060| 3.3, 2.5, 1.8, 0.62 (adj)| <1
6| LTC2936| 0.2 to 5.8 (Programmable)| <1
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
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 Accurac y
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.
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| 2.2 to 28V| 2.7% and
1.5%| Up| R’s, C’s| 16 TQFN
3| MAX16042| 20 TQFN
4| MAX16043| 24 TQFN
4: cascadable| MAX16165, MAX16166| 2.7 to 16V| 0.80%| Up, Reverse- Power Down|
R’s, C’s| 20 WLP,
20L TQFN
MAX16050| 2.7 to 16V| 1.5%| Up, Reverse- Power Down| R’s, C’s| 28 TQFN
5: cascadable| MAX16051
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| <1%| Programmable| PMBus| 64 LFCSP
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ANALOG DEVICES MAX16163 Nano Power
Controller
[pdf] Instructions
MAX16163, MAX16164, MAX16132, MAX16133, MAX16134, MAX16135, LTC2937, MAX16163
Nano Power Controller, MAX16163, Nano Power Controller, Power Controller,
Controller
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