ISL24212

The ISL24212 is an 8-bit programmable current sink that can be used in conjunction with an external voltage divider to generate a voltage source (V_COM) positioned between the analog supply voltage and ground. The current sinks full-scale range is controlled by an external resistor, R_SET. With the appropriate choice of external resistors R₁ and R₂, the V_COM voltage range can be controlled between any arbitrary voltage range. The ISL24212 has an 8-bit data register and 8-bit EEPROM for storing both a volatile and a permanent value for its output, accessible through a single up/down counter interface pin (CTL). After the part is programmed with the desired V_COM value, the Counter Enable pin (CE) can be grounded to prevent further changes. On every power-up, the EEPROM contents are automatically transferred to the data register and the pre-programmed output voltage appears at the VCOM_OUT pin. The ISL24212 also features an integrated, wide-bandwidth, high output drive buffer amplifier that can directly drive the V_COM input of an LCD panel. The ISL24212 is available in an 10 Ld 3mm x 3mm TDFN package. This package has a maximum height of 0. 8mm for very low profile designs. The ambient operating temperature range is -40°C to +85°C.