EL5325A
12-Channel TFT-LCD Reference Voltage Generator with External Shutdown
Typical Diagram
Key Features
- 12-channel reference outputs
- Accuracy of ±1%
- Supply voltage of 5V to 16.5V
- Digital supply 3.3V to 5V
- Low supply current of 10mA
- Rail-to-rail capability
- Internal thermal protection
- External shutdown
- Pb-free plus anneal available (RoHS compliant)
Description
The EL5325A with external shutdown is designed to produce the reference voltages required in TFT-LCD applications. Each output is programmed to the required voltage with 10 bits of resolution. Reference pins determine the high and low voltages of the output range, which are capable of swinging to either supply rail. Programming of each output is performed using the 3-wire, SPI compatible interface.
A number of EL5325A can be stacked for applications requiring more than 12 outputs. The reference inputs can be tied to the rails, enabling each part to output the full voltage range, or alternatively, they can be connected to external resistors to split the output range and enable finer resolutions of the outputs.
The EL5325A has 12 outputs and is available in a 28 Ld TSSOP package. They are specified for operation over the full -40°C to +85°C temperature range.
Applications
- TFT-LCD drive circuits
- Reference voltage generators
