(China (Mainland))
Product Summary
The EL7581IREZ 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 provides up to 720mA @12V, 570mA @ 15V from 5V input. 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 EL7581IREZ 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 EL7581IREZ to be automatically protected from excessive power dissipation.
Parametrics
EL7581IREZ absolute maximum ratings: (1)VIN Input Voltage: 14V; (2)VDDB, VDDP, VDDN: 18V; (3)LX Voltage: 18V; (4)Maximum Continuous Output Current: 1A; (5)Storage Temperature: -65℃ to +150℃; (6)Die Junction Temperature: 125℃; (7)Power Dissipation: See Curves; (8)Operating Ambient Temperature: -40℃ to +85℃.
Features
EL7581IREZ features: (1)2.7V to 14V VIN supply; (2)5V < VBOOST < 17V; (3)5V < VON < 40V; (4)-40V < VOFF < 0V; (5)VBOOST = 12V @ 720mA; (6)VBOOST = 15V @ 570mA; (7)High frequency, small inductor DC-DC boost circuit; (8)Over 90% efficient DC-DC boost converter capability; (9)Adjustable frequency; (10)Adjustable soft-start; (11)Adjustable outputs; (12)Small parts count.
Diagrams
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 EL7581IREZ |
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IC CONV DC/DC 3-CHAN 20-HTSSOP |
Data Sheet |
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EL7581IREZ-T13 |
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IC CONV DC/DC 3-CHAN 20-HTSSOP |
Data Sheet |
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EL7581IREZ-T7 |
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IC CONV DC/DC 3-CHAN 20-HTSSOP |
Data Sheet |
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