(China (Mainland))
Product Summary
DD312 is a high constant current driver designed for LED lighting application and power LEDs. The DD312 incorporates a constant current circuitry with current value set by an external resistor. The output enable terminal of theDD312 allows dimming control by system. The fast response of output current can adapt to high dimming resolution and high refresh rate applications. Applications of the DD312 include: LED architectural or entertainment lighting, LED general or specialty illumination and LED backlighting applications.
Parametrics
DD312 absolute maximum ratings: (1) Supply Voltage VDD: -0.3V to 18V; (2) Input Voltage VIN: -0.3V to VDD to +0.3V; (3) Output Current Iout: 1.0A; (4) Output Voltage Vout: -0.3V to 18V; (5) Enable Voltage VEN: 0.3V to 18V; (6) Output Enable Frequency FEN: 1MHZ; (7) GND Terminal Current IGND: 1.01A; (8) Power Dissipation PD: 3.27W ( TO-253) , 1.67W (SOP8) ; (9) Thermal Resistance (Junction to Air) Rth (j-a) : 30.6°C/W (TO-252) , 60°C/W (SOP8) ; (10) Operating Temperature: -40 to 85°C; (11) Storage Temperature Tstg: -55 to 150°C.
Features
DD312 features: (1) Maximum output current: 1A (determined by the external resistor) ; (2) Minimum output voltage: 1V (Iout = 1A) ; (3) Maximum output voltage: 18V; (4) Output enable terminal: 1MHz (max.) ; (5) Supply voltage range: 5V ~ 18V; (6) Over current protection; (7) Thermal shutdown; (8) Thermal alarm (SOP8 only) ; (9) LED open detection (SOP8 only) .
Diagrams
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Data Sheet |
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