Product Summary
The RT9372-MGPQW is a high efficiency and cost effective charge pump white LED driver. The RT9372-MGPQW supports up to 3 white LEDs with regulated constant current for uniform intensity. The RT9372-MGPQW maintains the highest efficiency by utilizing a x1/x1.5/x2 charge pump and low dropout current regulators. User can easily configure each LED current from 1.25mA to 20mA by a pulse dimming control. The dimming of white LEDs current can be achieved by applying a pulse signal to the EN pin. There are totally 16 steps of current could be set by users.
Parametrics
RT9372-MGPQW absolute maximum ratings: (1)Supply Input Voltage : -0.3V to 6V; (2)Other I/O Pin Voltage : -0.3V to 6V; (3)Power Dissipation, PD @ TA = 25°C WQFN-16L 3x3 : 1.47W; (4)Package Thermal Resistance (Note 2) WQFN-16L 3x3, θJA : 68°C/W; (5)Junction Temperature : 150°C; (6)Lead Temperature (Soldering, 10 sec.): 260°C; (7)Storage Temperature Range : -40°C to 150°C.
Features
RT9372-MGPQW features: (1)Very High Efficiency Over 80% of Battery Life; (2)Support up to 3 White LEDs; (3)Support Up to 60mA Output Current; (4)1% Typical LED Current Matching; (5)Soft Start Function; (6)Auto Charge Pump Mode Selection; (7)250kHz Fixed Frequency Oscillator; (8)Output Over Voltage Protection; (9)16 Steps Brightness Control; (10)Low Input Noise and EMI; (11)RoHS Compliant and 100% Lead (Pb)Free.
Diagrams
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