Diodes Incorporated (Nasdaq: DIOD) has announced the launch of its USB 2.0 signal conditioner product, the PI5USB212, which operates at supply voltages as low as 2.3V. The PI5USB212 is designed for use in laptops, personal computers, docking stations, extension cords, TVs, and monitors, and it automatically detects USB 2.0 high-speed transmission. It can maintain signal integrity even when PCB traces or data lines are extended up to 5 meters.
This IC symmetrically boosts the USB D+ and D- channels to achieve common-mode stability and compensates for intersymbol interference (ISI) through pre-emphasis. Its wide supply voltage range simplifies system design and extends the operating window for portable and battery-powered devices.
The device can be configured via I2C commands or pin configuration to adjust signal enhancement and ISI compensation. It features two control pins (boost/SEN); by pulling down the boost pin with different resistors, the AC gain/pre-emphasis level can be controlled. The SEN pin allows for selection of high, low, or medium receiver sensitivity (DC gain) to ensure optimal signal integrity based on channel conditions. It automatically detects low-speed (LS) and full-speed (FS) connections, avoiding signal compensation when not necessary.
The PI5USB212 product is compatible with USB 2.0, OTG 2.0, and Battery Charging (BC) 1.2, and supports USB functions including device connection and high-speed detection, with a voltage tolerance of up to 5.5V. It automatically detects when USB is not connected, reducing the supply current to 0.7mA (typical) for power saving. The supply current can also be reduced to 13µA (typical) when triggered to disable via the RSTN pin.
The PI5USB212 is available in a 12-pin, 1.6mm x 1.6mm, quad-flat no-lead (QFN) package, with a minimum order quantity of 3,500 units.