ISL97522 - 4-Channel TFT-LCD Supply

Renesas

General Description

CONDITION MIN TYP MAX UNIT

Key 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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ISL97522 4-channel tft-lcd supply by Renesas - Datasheet Preview

Datasheet Details

Part number	ISL97522
Manufacturer	Renesas
File Size	594.59 KB
Description	4-Channel TFT-LCD Supply
Datasheet	ISL97522 Datasheet

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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.