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ISL97522 - 4-Channel TFT-LCD Supply

Description

CONDITION MIN TYP MAX UNIT

Features

  • 4.5V to 13V input.
  • Boost controller for AVDD.
  • Regulated LDOs for VOFF and VON.
  • Buck controller for logic output.
  • VON slicing circuit.
  • Fully fault-protected.
  • Programmable sequence.
  • 1MHz switching frequency.
  • 38 Ld QFN package.
  • Pb-free plus anneal available (RoHS compliant).

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Datasheet preview – ISL97522

Datasheet Details

Part number ISL97522
Manufacturer Renesas
File Size 594.59 KB
Description 4-Channel TFT-LCD Supply
Datasheet download datasheet ISL97522 Datasheet
Additional preview pages of the ISL97522 datasheet.

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Full PDF Text Transcription

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ISL97522 4-Channel TFT-LCD Supply RECOMMOEBNSDOELDEISTLRE9E8PP6RL0AO2CDEUMCETNT PART DATASHEET FN7445 Rev 0.00 December 13, 2006 The ISL97522 represents a 4-channel supply control IC for use in large panel TFT-LCD displays. Supporting inputs from 4.5V to 13V, the ISL97522 includes a boost controller to achieve the required AVDD output voltage. Both VON and VOFF are generated using off-chip charge-pumps which are then post regulated using on-board LDO controllers. The logic supply is generated using an internal nonsynchronous buck controller. This controller runs at 180° out of phase with the AVDD supply to minimize input noise. The AVDD, VOFF, and VON outputs are automatically sequenced as AVDD, VOFF, and VON.
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