Overview
The CM1223-02SO, produced by onsemi, is a member of the CM1223 family of diode arrays designed to provide ESD (Electrostatic Discharge) protection for electronic components or subsystems that require minimal capacitive loading. This device is particularly suited for protecting high-speed data and clock rate systems, as well as circuits that demand low capacitive loading. The CM1223-02SO is available in a SOT23-5 package and is lead-free and RoHS compliant.
Key Specifications
| Parameter | Rating | Units |
|---|---|---|
| Operating Supply Voltage (VP - VN) | 6.0 | V |
| Operating Temperature Range | -40 to +85 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| DC Voltage at any channel input (VN - 0.5) to (VP + 0.5) | V | V |
| Package Power Rating (SOT23-5 Package) | 225 | mW |
| Operating Supply Current (VP - VN) = 3.3 V | 8.0 | μA |
| Signal Clamp Voltage (Positive Transients) | 6.7 | V |
| Channel Input Capacitance | 0.7 - 1.0 | pF |
| Channel Leakage Current | ±0.1 - ±1.0 | μA |
Key Features
- Two channels of ESD protection with integrated backdrive protection on all lines.
- Provides ESD protection to IEC 61000-4-2 Level 4: ±8 kV contact discharge and ±15 kV air discharge.
- Low channel input capacitance of 1.0 pF (typical).
- Minimal capacitance change with temperature and voltage.
- Channel I/O to GND capacitance difference of 0.02 pF (typical), ideal for differential signals.
- Mutual capacitance between signal pin and adjacent signal pin at 0.11 pF (typical).
- Zener diode protects supply rail and eliminates the need for external bypass capacitors.
- Pin compatible with CM1213-02, -04, and -08.
- Each I/O pin can withstand over 1000 ESD strikes.
- Available in SOT23-5 package, lead-free and RoHS compliant.
Applications
- USB 2.0 ports at 480 Mbps in desktop PCs, notebooks, and peripherals.
- IEEE 1394 Firewire ports at 400 Mbps / 800 Mbps.
- DVI and HDMI ports in notebooks, set-top boxes, digital TVs, and LCD displays.
- UDI and DisplayPorts.
- Serial ATA ports in desktop PCs and hard disk drives.
- PCI Express ports.
- General-purpose high-speed data line ESD protection.
Q & A
- What is the CM1223-02SO used for?
The CM1223-02SO is used to provide ESD protection for electronic components or subsystems requiring minimal capacitive loading.
- What are the key features of the CM1223-02SO?
Key features include low channel input capacitance, integrated backdrive protection, and compliance with IEC 61000-4-2 and MIL-STD-883D standards.
- What are the typical applications of the CM1223-02SO?
Typical applications include USB 2.0 ports, IEEE 1394 Firewire ports, DVI and HDMI ports, and serial ATA ports.
- What is the operating temperature range of the CM1223-02SO?
The operating temperature range is -40°C to +85°C.
- What is the package type of the CM1223-02SO?
The CM1223-02SO is available in a SOT23-5 package.
- Is the CM1223-02SO lead-free and RoHS compliant?
- How many ESD strikes can each I/O pin withstand?
Each I/O pin can withstand over 1000 ESD strikes.
- What is the typical channel input capacitance of the CM1223-02SO?
The typical channel input capacitance is 1.0 pF.
- Does the CM1223-02SO require external bypass capacitors?
No, the CM1223-02SO has a Zener diode that eliminates the need for external bypass capacitors.
- What is the purpose of the backdrive protection diode in the CM1223-02SO?
The backdrive protection diode blocks backdrive current flow from high potential voltage nodes to lower potential voltage nodes, ensuring proper system operation.
