LTC2874 Quad IO-Link Master Hot Swap Controller and PHY Demonstration Circuit 1880A
Demonstration circuit for the LTC2874 quad IO-Link master, featuring hot swap control, PHY functionality, and SPI communication for industrial automation applications.
Overview
The DC1880A demonstration circuit showcases the LTC2874, a quad Hot Swap controller and physical layer (PHY) designed for IO-Link master applications. The board operates from an external 8V to 30V supply and interfaces with a PC via the DC590 USB serial controller using SPI protocol. It features four independent ports with screw-terminal blocks and IO-Link connectors, protected by 36V TVS diodes. The circuit includes an onboard LDO (LT3012) to derive the logic supply from the input voltage and an RS-232 transceiver (LTC2802) for serial data communication. Users can evaluate performance and configure registers using the QuikEval software or a Linduino One development board.
Use Cases
- IO-Link master systems
- Industrial control networks
- Sensor and actuator communication
- Hot swap power management in industrial environments
- Programmable Logic Controller (PLC) interface design
Topics
Referenced Parts
LT3012EFE
Linear Technology
IC, LDO
LTC2802CDE
Linear Technology
IC, RS232 TRANSCEIVER
LTC2874IFE
Linear Technology
IC, QUAD IO-LINK MASTER HOT SWAP CONTROLLER AND PHY
LN1251C
Panasonic
LED, RED
DR-E9SB-NJ-001
Signatron
CONNECTOR, DSUB, 9 PIN FEMALE
RL1220S-R20-F
Susumu
RES, 0.2Ω, 1%, 0805
D1-D4
Diodes
If L+ isolation is not needed, Schottky diodes D1-D4 may
50V
AVX
4 1 C8 CAP, TANTALUM, 4.7μF, 20%, 7343 50V AVX, TAJD475K050R
2mm
Molex
9 1 J12 HEADER, 2×7 2mm MOLEX, 87831-1420
2mm
Samtec
12 2 JP5, JP12 HEADER, 1×2 2mm SAMTEC, TMM-102-02-L-S
2mm
Samtec
13 12 JP1-12 SHUNT, 2mm SAMTEC, 2SN-BK-G
2mm
Samtec
10 5 JP1, JP3, JP7, JP9, JP11 HEADER, 2×3 2mm SAMTEC, TMM-103-02-L-D
2mm
Samtec
11 5 JP2, JP4, JP6, JP8, JP10 HEADER, 2×4 2mm SAMTEC, TMM-104-02-L-D
| 09-3442-500-05 | Binder | JACK, M12, 5 POSITION, FEMALE, STRAIGHT |
| 575-4 | Keystone Electronics | JACK, BANANA |
| 8833 | Keystone Electronics | STANDOFF, SNAP-ON |
| 24LC025-I/ST | Microchip | IC, SERIAL EEPROM 2k |
| 2308-2-00-80-00-00-07-0 | Mill-Max | TURRET |
| 2501-2-00-80-00-00-07-0 | Mill-Max | TURRET |
| 87831-1420 | Molex | HEADER, 2×7 2mm |
| GRM21BR71H105KA12L | Murata | CAP, 1μF 10%, 50V, X7R, 0805 |
| SM6T36A | Stmicroelectronics | DIODE, TVS, 36V, SMA |
| 2SN-BK-G | Samtec | SHUNT, 2mm |
| SNT-100-BK-G | Samtec | SHUNT, 0.1" |
| TMM-102-02-L-S | Samtec | HEADER, 1×2 2mm |
| TMM-103-02-L-D | Samtec | HEADER, 2×3 2mm |
| TMM-104-02-L-D | Samtec | HEADER, 2×4 2mm |
| TSW-101-07-G-D | Samtec | HEADER, 1×2 0.1" |
| C1608X7R1C105M | TDK | CAP, 1μF 20%, 16V, X7R, 0603 |
| C1608X7R1C224K | TDK | CAP, 0.22μF, 10%, 16V X7R, 0603 |
| C1608X7R1E104K | TDK | CAP, 0.1μF, 10%, 25V X7R, 0603 |
| CBC2016T100M | Taiyo Yuden | INDUCTOR, 10μH, 0.5Ω, 0.3A, 0806 |
| EMZA630ADA101MJA0G | United Chemi-Con | CAP, ALUMINUM, 100μF, 20%, 63V |
| CRCW0603309KFKEA | Vishay | RES, 309k, 1%, 0603 |
| CRCW060375K0FKEA | Vishay | RES, 75k, 1%, 0603 |
| CR16-1002FM | AAC | RES, 10k, 1%, 0603 |
| CR16-1003FM | AAC | RES, 100k, 1%, 0603 |
| CR16-10R0FM | AAC | RES, 10Ω, 1%, 0603 |
| CR16-4752FM | AAC | RES, 47.5k, 1%, 0603 |
| CR16-4991FM | AAC | RES, 4.99k, 1%, 0603 |
| CR16-5902FM | AAC | RES, 59k, 1%, 0603 |
| CR16-681FM | AAC | RES, 680, 1%, 0603 |
| CR18-101JM | AAC | RES, 100, 5%, 1206 |
| TAJD475K050R | AVX | CAP, TANTALUM, 4.7μF, 20%, 7343 50V |
| FQT7N10TF | Fairchild Semiconductor | TRANSISTOR, NFET, SOT-223 |
| S100 | Fairchild Semiconductor | DIODE, SCHOTTKY, 1A, 100V |
| 691321100005 | Wurth Electronics | TERMINAL BLOCK, 5 POSITION, 3.5mm, HEADER |
| 691361100005 | Wurth Electronics | TERMINAL BLOCK, 5 POSITION, 3.5mm, PLUG |
| LT3012EFE | Linear Technology | IC, LDO |
| LTC2802CDE | Linear Technology | IC, RS232 TRANSCEIVER |
| LTC2874IFE | Linear Technology | IC, QUAD IO-LINK MASTER HOT SWAP CONTROLLER AND PHY |
| LN1251C | Panasonic | LED, RED |
| DR-E9SB-NJ-001 | Signatron | CONNECTOR, DSUB, 9 PIN FEMALE |
| RL1220S-R20-F | Susumu | RES, 0.2Ω, 1%, 0805 |
| D1-D4 | Diodes | If L+ isolation is not needed, Schottky diodes D1-D4 may |
| 50V | AVX | 4 1 C8 CAP, TANTALUM, 4.7μF, 20%, 7343 50V AVX, TAJD475K050R |
| 2mm | Molex | 9 1 J12 HEADER, 2×7 2mm MOLEX, 87831-1420 |
| 2mm | Samtec | 12 2 JP5, JP12 HEADER, 1×2 2mm SAMTEC, TMM-102-02-L-S |
| 2mm | Samtec | 13 12 JP1-12 SHUNT, 2mm SAMTEC, 2SN-BK-G |
| 2mm | Samtec | 10 5 JP1, JP3, JP7, JP9, JP11 HEADER, 2×3 2mm SAMTEC, TMM-103-02-L-D |
| 2mm | Samtec | 11 5 JP2, JP4, JP6, JP8, JP10 HEADER, 2×4 2mm SAMTEC, TMM-104-02-L-D |