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EL7584

Features: •TFT - LCD display supply- Boost regulator- VCOM buffer- VON charge pump- VOFF charge pump•2V to 14V VIN supply•5V < VBOOST < 17V•2V < VCOM < 13V•5V < VON < 40V• - 40V < VOFF < 0V•VBOOST = 15V @ 370mA•High frequency,...

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SeekIC No. : 004335681 Detail

EL7584: Features: •TFT - LCD display supply- Boost regulator- VCOM buffer- VON charge pump- VOFF charge pump•2V to 14V VIN supply•5V < VBOOST < 17V•2V < VCOM < 13V•...

EL7584 Data Sheet

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Part Number:
EL7584
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

•TFT - LCD display supply
- Boost regulator
- VCOM buffer
- VON charge pump
- VOFF charge pump
•2V to 14V VIN supply
•5V < VBOOST < 17V
•2V < VCOM < 13V
•5V < VON < 40V
• - 40V < VOFF < 0V
•VBOOST = 15V @ 370mA
•High frequency, small inductor DC/DC boost circuit
•Over 90% efficient DC/DC boost converter capability
•Built - in power - up sequence with adjustable VON delay
•Adjustable frequency
•Adjustable soft- start
•Adjustable outputs
•Over - temperature protection
•Small parts count
•Pb - free available (RoHS compliant)




Application

•TFT-LCD panels
•PDAs




Pinout






Specifications

LX Pin Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
VDDB, VDDP, VDDN.. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 18V
VDDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5V
Maximum Continuous VBOOST Output Current. . . . . . . . . . . 800mA
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-65 to +150
Ambient Operating Temperature . . . . . . . . . . . . . . . .-40 to +85
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves





Description

The EL7584 is a 4-channel DC/DC converter IC which is designed primarily for use in TFT-LCD applications. The boost converter has 2V to 14V input capability and provides 5V to 17V output, which powers the column drivers and provides up to 370mA @ 15V. A pair of charge pump control circuits provide outputs to allow the external generation of VON and VOFF supplies at 5V to 40V and 0V to -40V, respectively, each at up to 60mA for VBOOST = 15V. The VCOM buffer provides up to 50mA continuous output current from 2V to 13V.

The EL7584 features adjustable switching frequency and on-chip power sequence to simplify start-up operation. A separate input is available to externally increase the default delay of the positive charge pump. An over-temperature feature is provided to allow the IC to be automatically protected from excessive power dissipation.

The EL7584 is available in a 24-pin TSSOP package and is specified for operation over the full -40 to +85 temperature range.






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