The MAX3301E/MAX3302E fully integrated USB On-the-Go (OTG) transceivers and charge pumps allow mobile devices such as PDAs, cellular phones, and digital cameras to interface directly with USB peripherals and each other without the need of a host PC. Use the MAX3301E/MAX3302E with an embedded USB host to directly connect to peripherals such as printers or external hard drives. The MAX3301E/MAX3302E integrate a USB OTG transceiver, a VBUS charge pump, a linear regulator, and an I2C-compatible, 2-wire serial interface. An internal level shifter allows the MAX3301E/MAX3302E to interface with +1.65V to +3.6V logic supply voltages. The MAX3301E/MAX3302E’s OTG-compliant charge pump operates with +3V to +4.5V input supply voltages, and supplies an OTG-compatible output on VBUS while sourcing more than 8mA of output current. The MAX3301E/MAX3302E enable USB OTG communication from highly integrated digital devices that cannot supply or tolerate the +5V VBUS levels that USB OTG requires. The device supports USB OTG session-request protocol (SRP) and host-negotiation protocol (HNP). The MAX3301E/MAX3302E provide built-in ±15kV electrostatic-discharge (ESD) protection for the VBUS, ID_IN, D+, and D- terminals. The MAX3301E/MAX3302E are available in 25-bump chip-scale (UCSP™), 25-bump WLP package, 28-pin TQFN, and 32-pin TQFN packages and operate over the extended -40°C to +85°C temperature range.
The MAX3301E and MAX3302E are fully integrated USB On‑the‑Go transceivers that combine a charge pump, linear regulator, and I2C‑compatible 2‑wire serial interface. They enable mobile devices such as PDAs, phones, and digital cameras to communicate directly with USB peripherals without a host PC.
Key features include support for SRP and HNP protocols, ±15 kV ESD protection on all USB pins, operation from +1.65 V to +3.6 V logic supplies, and VBUS output capability of more than 8 mA. The devices are offered in UCSP, WLP, and TQFN packages and operate over –40 °C to +85 °C.
| Supply Voltage (VCC) | 3.0 V – 4.5 V |
|---|---|
| Logic Supply Voltage (VL) | 1.65 V – 3.60 V |
| VBUS Output Current | 8 mA |
| Operating Temperature Range | -40 °C to +85 °C |
| ESD Protection | ±15 kV on ID_IN, VBUS, D+, D‑ |
The device can source up to 8 mA on the VBUS line.
It operates from –40 °C to +85 °C.
The transceiver includes ±15 kV ESD protection on the ID_IN, VBUS, D+, and D‑ pins.