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Partname: | MAX1554 |
Description: | High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs |
Manufacturer: | Maxim Integrated Products |
Datasheet: | PDF (347K). Click here to download *) |
The MAX1553/MAX1554 drive white LEDs in series with a constant current to provide efficient display backlighting in cellular phones, PDAs, and other hand-held devices. The step-up converter includes an internal 40V, low RDSON, N-channel MOSFET switch for high efficiency and maximum battery life. The MAX1553 has a current limit of 480mA for driving two to six white LEDs, while the MAX1554 has a current limit of 970mA for driving up to 10 white LEDs. A single analog/PWM Dual Mode input provides two simple means of brightness adjustment. A separate enable input provides on/off control. Soft-start minimizes inrush current during startup. The MAX1553/MAX1554 are available in space-saving 8-pin TDFN 3mm x 3mm packages. |
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Click here to download MAX1554 Datasheet*) |
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