ISL24201

Programmable VCOM Calibrator with EEPROM

Product Status: Mass Production

OVERVIEW

The ISL24201 provides an 8-bit programmable current sink that is used in conjunction with an external voltage divider and buffer amplifier to generate a voltage source that is positioned between the analog supply voltage and ground. The current sinks resolution is controlled by an external resistor, RSET , and the span of the VCOM voltage is controlled by the voltage divider resistor ratio and the source impedance of R1 and R2 . This device has an 8-bit data register and 8-bit EEPROM for storing a volatile and a permanent value for its output. The ISL24201 has an I2 C bus interface that is used to read and write to its registers and EEPROM. At power-up the EEPROM value is transferred to the data register and output.

The ISL24201 is available in an 8 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.

KEY FEATURES

  • 8-bit, 256-Step, Adjustable Sink Current Output
  • 4.5V to 18V Analog Supply Voltage Operating Range
  • 2.25V to 3.6V Logic Supply Voltage Operating Range
  • 400kHz, I2C Interface
  • On-Chip 8-Bit EEPROM
  • Output Guaranteed Monotonic Over-Temperature
  • Pb-free (RoHS-compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL24201
Basic Information
Production Status
Mass Production
VS (min)
4.5 V
VS (max)
18 V
Resolution Bits
8
EEPROM
Yes
Bus/Output Interface
I2C
Qualification Level
Standard
Can Sample
YES
Temperature Range
-40 to +85

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