Product Summary

The SGM3136 is a 3-channel ultra low dropout constant source parallel LED driver. The SGM3136 uses an internal resistor to set the bias current for three LEDs, which are matched to ±3%. The SGM3136 incorporates a single wire interface to program the output current at 16 continuous steps. It has an internal deglitch circuit for filtering the noise of the EN input.

Parametrics

SGM3136 absolute maximum ratings: (1)VIN to GND: -0.3V to 6 V; (2)VOUT to GND: -0.3V to 6 V; (3)SHDN to GND: -0.3V to 6 V; (4)Storage Temperature Range: -65℃ to +150℃; (5)Junction Temperature: 160℃; (6)Operating Temperature Range: -40℃ to +85℃; (7)Power Dissipation, PD @ TA = 25℃, SOT23-6: 0.34W; (8)Package Thermal Resistance, SOT23-6, θJA: 250℃/W; (9)Lead Temperature Range (Soldering 10 sec): 260℃; (10)ESD Susceptibility, HBM: 2000V; MM: 400V.

Features

SGM3136 features: (1)Step-Up Voltage Converter; (2)Input Voltage Range: SGM3110-5.0: 2.7 to 5.0V; SGM3110-4.5: 2.7 to 4.5V; (3)MicroPower Consumption: 60μA; (4)Fixed 5V, 4.5V ± 4% Output; (5)Peak Current 250mA for 100ms; (6)High Frequency 750kHz Operation; (7)Logic-Controlled Shutdown; (8)Short-Circuit/Over-Temperature Protection; (9)Lead (Pb) Free SOT23-6 Package.

Diagrams

SGM3136 block diagram