LINEAR TECHNOLOGY LTC3220EPF#PBF 电源控制器-产品快照
- 品牌:
- LINEAR TECHNOLOGY
- 型号:
- LTC3220EPF#PBF
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|---|---|---|
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产品介绍
LINEAR TECHNOLOGY LTC3220EPF#PBF 电源控制器
LINEAR TECHNOLOGY LTC3220EPF#PBF Led Driver, 18 Outputs, Charge Pump, I2C Dimming, 2.9V-5.5V in, 850kHz switch, 360mA out, TQFN-28
LINEAR TECHNOLOGY
The LTC3220EPF#PBF is a highly integrated multi-display LED Driver contains a high efficiency, low noise charge pump to provide power to up to eighteen universal LED current sources. The LTC3220 requires only five small ceramic capacitors to form a complete LED power supply and current controller. The LED currents are set by an internal precision current reference. Independent dimming, ON/OFF, blinking and gradation control for all universal current sources is achieved via the I²C serial interface. 6-bit linear DACs are available to adjust brightness levels independently for each universal LED current source. The LTC3220 charge pump optimizes efficiency based on the voltage across the LED current sources. The part powers up in 1x mode and will automatically switch to boost mode whenever any enabled LED current source begins to enter dropout. The first dropout switches the parts into 1.5x mode and a subsequent dropout switches the LTC3220 into 2x mode. Low noise multi-mode charge pump provides up to 91% efficiency Slew limited switching reduces conducted and radiated noise (EMI) Internal current reference Automatic or forced mode switching Internal soft-start limits inrush current Short-circuit/thermal protection Device Topology: Charge Pump No. of Outputs: 18Outputs Output Current: 360mA Output Voltage: - Driver Case Style: TQFN No. of Pins: 28Pins Input Voltage Min: 2.9V Input Voltage Max: 5.5V Switching Frequency: 850kHz Operating Temperature Min: -40°C Operating Temperature Max: 85°C Packaging: Each Product Range: - Automotive Qualifications Standard: - Dimming Control Type: I2C MSL: MSL 1 - Unlimited Input Voltage: 2.9V to 5.5V LED Driver Application: Video Phones, Lighting SVHC: No SVHC (17-Dec-2015) Find similar products grouped by common attribute
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