Datasheet
OC03 - Relay Out (PCA9554A, TLP240A)
Front
Back
☒
CHIP
Main Category Output
Sub Category Control
Introduced 1 January 2017
Current version 1.0.0
Current version date 1 January 2017
Dimensions
Size 2x2U (32x32mm)
Weight 5.1 g
Height 15.0/11.3/2.1 mm
Non-
☒
BUS Connections
North Terminal Block
Main Chip Set
Main Chip PCA9554A
I²C Configuration
Default Address 0x38
Alternative Addresses 0x3B; 0x3D; 0x3E; 0x3F
Change Setting Solder Pads
XinaBox Datasheet OC03 - Relay Out
Contents
1 Overview
2 Applications
3 Specifications
4 External Links
Overview
OC03 is a low-voltage control relay module able to switch AC and DC loads.
The optically isolated relay is controlled by a PCA9554A IO expander, which provides an control
interface to the switch. The PCA9554A has several selectable I
2
C addresses accessible via solder
pads.
The TLP241A photorelay consist of a photo MOSFET optically coupled to an infrared light emitting
diode which switches a AC or DC load. It provides an isolation voltage of 5000 Vrms, making it
suitable for applications that require reinforced circuit insulation.
Product Highlights
Low Voltage AC/DC Control Relay
Load Voltage Range: 0 - 40 V
Load Current Rating: 2 A
Applications
Home Automation
Remote Control Applications
Industrial Control
Remote Interfacing
Specifications
PCA9554A
400-kHz Fast I
2
C Bus
Three Hardware Address Pins Allow up to Eight I
2
C Addresses
Internal Power-On Reset
No Glitch on Power Up
Latched Outputs With High-Current Drive
TLP241A
Normally Open
OFF-state output terminal voltage: 40 V (min)
Trigger LED current: 3 mA (max)
ON-state current: 2 A (max)
ON-state resistance:
1. 100 mΩ (max, t < 1 s)
2. 150 mΩ (max, Continuous)
Isolation voltage: 5000 Vrms (min)
External Links
GitHub Libraries
Arduino (https://github.com/xinabox/Arduino_OC03)
Zerynth (https://github.com/xinabox/zerynth_OC03)
MakeCode (https://github.com/xinabox/pxt-OC03)
Features Projects
Virtual Door Button (https://www.hackster.io/gotfredsen/virtual-door-button-b5298f)
Build a Temperature Controlled Desk Fan in Python (https://www.hackster.io/dberman/build-a-temperature-controlled-desk-fan-in-python-7703d
b)
Controlling the XinaBox OC03 Relay Module in Python (https://www.hackster.io/lana-vulic/controlling-the-xinabox-oc03-relay-module-in-python-f
42cca)