# Microscope Piezo Driver

## Description

High\-voltage amplifier and power supply for an SA050520 microscope scanning\-stage piezo actuator, targeting a 0–100 V sinusoidal output at 10 kHz\. Architecture pending duty\-cycle and thermal feasibility\.

## Project Details

- **Owner:** sargit2k
- **Created:** 10/10/2026
- **Last Updated:** 10/10/2026
- **Visibility:** Public

## Key Components

### J1 — [1935161](https://flux.ai/adrian95/1935161~5kv.md)

- Role Details: Pin1 externally PROTECTED\+48V pin2GND;auxiliary only\~0\.17A worstdesignallowance0\.5Aat12V42V90%assumed;external fuse/currentlimit and reverseprotection REQUIRED, notimplementedonboard\. Not fullHV stagefeed\.
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector
- Datasheet URL: https://mm\.digikey\.com/Volume0/opasdata/d220001/medias/docus/909/1935161\.pdf
- Manufacturer Part Number: 1935161
- Role: Power Conversion
- Functional Group: IO J1 Protected 48V Input
- Manufacturer Name: Phoenix Contact

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### J2 — [1935161](https://flux.ai/adrian95/1935161~5kv.md)

- Role: Signal Generation
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector
- Datasheet URL: https://mm\.digikey\.com/Volume0/opasdata/d220001/medias/docus/909/1935161\.pdf
- Manufacturer Part Number: 1935161
- Role Details: Pin1CTRL\_CMD\_5V pin2GND;10kohm pull\-down gives0Vondisconnect\. Future mapping20V/V command0to100V;controller absent, interface not connected toHV stage\.
- Manufacturer Name: Phoenix Contact
- Functional Group: IO J2 External Command

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### J3 — [1935161](https://flux.ai/adrian95/1935161~5kv.md)

- Functional Group: IO J3 Auxiliary Enable
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector
- Datasheet URL: https://mm\.digikey\.com/Volume0/opasdata/d220001/medias/docus/909/1935161\.pdf
- Manufacturer Part Number: 1935161
- Role: Switching
- Manufacturer Name: Phoenix Contact
- Role Details: Pin1EN\_AUX pin2GND;external3\.3Vassertion starts12Vaux\. Default100kohmpull\-down\. Not amplifierenable/faultreset;noHV powerstagepresent\.

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### U1 — [LM5164DDAT](https://flux.ai/adrian95/lm5164ddat~j4p.md)

- Manufacturer Part Number: LM5164DDAT
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: POWER U1 12V Auxiliary Buck
- Role Details: TI Figure 7\-1 48V to12V 1A reference; prototype auxiliary budget limited to0\.5A pending full gate/control budget\. Input must be externally protected; EN defaults disabled\.
- Manufacturer Name: Texas Instruments
- Role: Power Conversion
- Part Type: Integrated Circuit
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/lm5164\.pdf

**Pins:**
- BST [pin 7]
- EN/UVLO [pin 3]
- EP [pin 9]
- FB [pin 5]
- GND [pin 1]
- PGOOD [pin 6]
- RON [pin 4]
- SW [pin 8]
- VIN [pin 2]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/sargit2k/microscope\-piezo\-driver\~vx](https://flux.ai/sargit2k/microscope-piezo-driver~vx).*

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*Generated from [https://flux\.ai/sargit2k/microscope\-piezo\-driver\~vx](https://flux.ai/sargit2k/microscope-piezo-driver~vx)*