EL7583

Features: •TFT-LCD display supply-Boost regulator-VON charge pump-VOFF charge pump•2.7V to 14V VIN supply•5V < VBOOST < 17V•5V < VON < 40V•-40V < VOFF < 0V•VBOOST = 12V @ 470mA•VBOOST = 15V @ 370mA•High frequency, small inductor DC/...

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EL7583 Picture
SeekIC No. : 004335680 Detail

EL7583: Features: •TFT-LCD display supply-Boost regulator-VON charge pump-VOFF charge pump•2.7V to 14V VIN supply•5V < VBOOST < 17V•5V < VON < 40V•-40V < VOFF &l...

floor Price/Ceiling Price

Part Number:
EL7583
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: 2024/11/21

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Product Details

Description



Features:

•TFT-LCD display supply
-Boost regulator
-VON charge pump
-VOFF charge pump
•2.7V to 14V VIN supply
•5V < VBOOST < 17V
•5V < VON < 40V
•-40V < VOFF < 0V
•VBOOST = 12V @ 470mA
•VBOOST = 15V @ 370mA
•High frequency, small inductor DC/DC boost circuit
•Over 90% efficient DC/DC boost converter capability
•Adjustable frequency
•Adjustable soft-start
•Adjustable outputs
•Small parts count
•Pb-free available (RoHS compliant)





Application

•TFT-LCD panels
•PDAs





Pinout






Specifications

VIN Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14V
VDDB, VDDP, VDDN.........................................................................18V
LX Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
Maximum Continuous Output Current. . . . . . . . . . . . . . . . . . . . 0.5A
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Die Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . .125°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . .. . See Curves
Operating Ambient Temperature . . . . . . . . . . . . . . -40°C to +85°C

CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.





Description

The EL7583 is a 3-channel DC/DC converter IC which is designed primarily for use in TFT-LCD applications. It features a PWM boost converter with 2.7V to 14V input capability and 5V to 17V output, which powers the column drivers and rovides up to 470mA @ 12V, 370mA @ 15V from 5V supply. A pair of charge pump control circuits provide regulated outputs of VON and VOFF supplies at 8V to 40V and -5V to -40V, respectively, each at up to 60mA.

The EL7583 features adjustable switching frequency, adjustable soft start, and a separate output VON enable control to allow selection of supply start-up sequence. An over-temperature feature is provided to allow the IC to be automatically protected from excessive power dissipation.

The EL7583 is available in a 20-pin TSSOP package and is specified for operation over the full -40°C to +85°C temperature range.






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