(China (Mainland))
Product Summary
The LT3599EFE is a fi xed frequency 2A step-up DC/DC converter designed to drive four strings of 120mA LEDs up to a 44V output voltage. The switching frequency is programmable from 200kHz to 2.1MHz through an external resistor. The applications of the LT3599EFE are (1)Automotive Navigation TFT LCD Displays; (2)Desktop and Notebook TFT LCD Displays.
Parametrics
LT3599EFE absolute maximum ratings: (1)VIN, SHDN/UVLO, OPENLED, SHORTLED: 30V; (2)SHDN/UVLO Pin Above VIN:3V; (3)SW Voltage:45V; (4)VOUT, VO_SW Voltage:45V; (5)LED1, LED2, LED3, LED4:45V; (6)PWM, SYNC, CTRL, FB Voltage, TSET , DISABLE4:6V; (7)VC, SS:3V; (8)VREF, RT, ISET:2V ; (9)Operating Junction Temperature Range:–40°C to 125°C; (10)Maximum Junction Temperature: 125°C ; (11)Storage Temperature Range: –65°C to 150°C; (12)Lead Temperature (Soldering, sec): 300°C.
Features
LT3599EFE features: (1)True Color PWMTM Dimming Ratio Up to 3000:1; (2)Drives Four Strings of LEDs at Up to 120mA; (3)±1.5% Accurate LED Current Matching; (4)Wide Input Voltage Range: 3.1V to 30V; (5)Output Voltage Up to 44V; (6)Regulates LED Current Even When VIN > VOUT; (7)Disconnects LEDs in Shutdown ; (8)Programmable Maximum VOUT (Regulated); (9)Open/Short LED Protection and Fault Flags; (10)Programmable LED Current Derating; (11)Adjustable Frequency: 200kHz to 2.1MHz; (12)Synchronizable to an External Clock; (13)Analog Dimming Up to 20:1; (14)Programmable Input UVLO with Hysteresis; (15)Thermally Enhanced 32-Pin (5mm × 5mm) QFN and 28-Pin TSSOP Packages.
Diagrams
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 LT3599EFE#PBF |
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IC LED DRVR WHITE BCKLGT 28TSSOP |
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LT3599EFE#TRPBF |
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IC LED DRVR WHITE BCKLGT 28TSSOP |
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