SP3220E
Key Features
- Enhanced ESD Specifications: +15kV Human Body Model +15kV IEC1000-4-2 Air Discharge +8kV IEC1000-4-2 Contact Discharge DESCRIPTION The SP3220E device is an RS-232 driver/receiver solution intended for portable or hand-held applications such as notebook or palmtop computers. The SP3220E device has a highefficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump allows the SP3220E device to deliver true RS-232 performance from a single power supply ranging from +3.3V to +5.0V. The ESD tolerance of the SP3220E device is over +15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The SP3220E device has a low-power shutdown mode where the driver outputs and charge pumps are disabled. During shutdown, the supply current falls to less than 1µA. VCC + 15 VCC 2 C1+ 0.1µF 4 C15 C2+ C2 + 0.1µF 6 C211 T1IN 9 R1OUT 5kΩ 1 EN GND 14 *can be returned to either VCC or GND SHDN 16 T1OUT R1IN 13 8 V+ 3 *C3 + 0.1µF C5
- 1µF C1 + SP3220E V- 7 C4 + 0.1µF
