ISL24202

Programmable VCOM Calibrator with EEPROM

Product Status: Mass Production

OVERVIEW

The ISL24202 is an 8-bit programmable current sink that can be used in conjunction with an external voltage divider to generate a voltage source (VCOM ) positioned between the analog supply voltage and ground. The current sinks full-scale range is controlled by an external resistor, RSET . With the appropriate choice of external resistors R1 2, the VCOM voltage range can be controlled between any arbitrary voltage range. The ISL24202 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 VCOM 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 VOUT pin.

The ISL24202 can be used with a high output drive buffer amplifier, which allows it to directly drive the VCOM input of an LCD panel.

The ISL24202 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

  • Adjustable 8-Bit, 256-Step, Current Sink Output
  • On-Chip 8-Bit EEPROM
  • Up/Down Counter Interface
  • Guaranteed Monotonic Over-Temperature
  • 4.5V to 19.0V Analog Supply Range for Normal Operation (10.8V Minimum Analog Supply Voltage for Programming)
  • 2.25V to 3.6V Logic Supply Voltage Operating Range
  • Pb-free (RoHS-Compliant)
  • Ultra-Thin 8 Ld TDFN (3 x 3 x 0.8mm Max)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL24202
Basic Information
生产状态
Mass Production
VS (最小值)
4.5 V
VS (最大值)
19 V
分辨率位
8
EEPROM
Yes
总线/输出接口
Up/Down
资质级别
Standard
温度范围
-40 to +85

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