ISL4223E Overview
They provide ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). Targeted applications are PDAs, Palmtops, and hand-held products where the low operational power consumption and even lower standby power consumption are critical. Efficient on-chip charge pumps, coupled with manual and automatic powerdown functions, reduce the standby supply...
ISL4223E Key Features
- Available in near chip scale QFN (5mmx5mm) package, which is 40% smaller than a 20 Ld TSSOP
- ESD protection for RS-232 I/O pins to ±15kV (IEC61000)
- Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
- RS-232 patible with VCC = 2.7V
- On-chip voltage converters require only four
- Manual and automatic powerdown features (except
- Receiver hysteresis for improved noise immunity
- Assured minimum data rate: 250kbps
- Wide power supply range: single +2.7V to +5.5V
- Low supply current in powerdown state: 150nA