GM9623 350mA, High Voltage LED driver with Build in Power FET Description Features GM9623 is a pulse width modulated (PWM) high efficient operation of LED driver control IC with internal high voltage power switching MOSFET. Having HV MOSFET allows to use direct supplyline voltage (220VAC or 320VDC). The LED string is driven at constant current of 50mA, thus providing constant light output and enhanced reliability. High input voltage from 85 to 265VAC Fixed DC output current – 350mA with 3% accuracy Internal HV MOSFET switch with minimum 550V breakdown voltage Requires low inductance value (low cost) Available in SOT23 package The GM9623 has constant time off PWM architecture. The peak current control scheme provides good regulation of the output current throughout the universal AC line voltage range of 85 to 264VAC or DC input voltage of 20 to 400V. GM9623 is designed and tuned for using low inductance value (typically 4.7mH). Applications LED Lamps with AC or DC operation LED decorations General purpose constant current source LED 1 T1 Co AC Input LED n Typical Non Isolated Application Circuit LED 1 Co AC Input LED n L1 GM9623 D CU Gnd GM9623 V0.01 Preliminary Information Typical Application Circuit GM9623 D CU Gnd Typical Isolated Application Circuit www.gammamicro.com.tw 1 GM9623 350mA, High Voltage LED driver with Build in Power FET Marking Information and Pin Configurations (Top View) GM9623G AYWW 1 D 2 3 Gnd CU SOT223 package (Top View) G: Green Product A: Assembly / Test site code Y: Year WW: Week GM9623 V0.01 Preliminary Information Pin Descriptions 2 Pin # Function Description 1 D 2 Gnd Common pin 3 CU Output for bypass capacitor Drain terminal of the output switching MOSFET and a linear regulator input Ordering Information Ordering Number GM9623ST3RG Package Shipping SOT-223 100 Units / Tube GM9623 350mA, High Voltage LED driver with Build in Power FET Absolute Maximum Ratings PARAMETER RATINGS Operating voltage at D output with regard to Gnd (Vd) 550V Operating Temperature Range - 40°C to + 70°C Junction Temperature +125°C Storage Temperature - 65°C to + 150°C Stresses beyond those listed under ‘‘Absolute Maximum Ratings’’ may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Block Diagram GND CU D Toff = 10µs Voltage Reference S Q Q R Tb = 300ns GM9623 V0.01 Preliminary Information Internal Voltage Regulator 3 GM9623 350mA, High Voltage LED driver with Build in Power FET Electrical Characteristics (TA = 25°C, Vd = 320V, unless otherwise specified) Parameter GM9623 V0.01 Preliminary Information Internal regulator output 4 Symbol Test Conditions Min Typ Max Unit Vdd 7.5 Supply current Id 400 800 µA Supply voltage Vdrain 20 320 450 V Breakdown voltage Vdb 550 On-resistor Ron Average current Iom Leading edge blanking delay Tb Minimum on-time Ton Off-time Toff L1 = 4.7mH, Co = 0.1uF, Vom =50V (16 LEDs) V V 15 Ω 340 350 360 mA 200 300 400 ns 650 ns 18 ns 8 12 GM9623 350mA, High Voltage LED driver with Build in Power FET Package Outline Dimensions – SOT223 0.248 - 0.264 (6.30 - 6.71) 0.010 - 0.014 (0.25 - 0.36) 0.116 - 0.124 (2.95 - 3.15) 0.130 - 0.146 (3.30 - 3.71) 0.071 (1.8) MAX 0.0008 - 0.0040 (0.0203 - 0.1016) 10°- 16° 0.012 (0.31) 0.090 (2.29) NOM 0.033 - 0.041 (0.84 - 1.04) MIN 0.025 - 0.033 (0.64 - 0.84) 0.81 (4.6)NOM 10° MAX NOM GM9623 V0.01 Preliminary Information 0.264 - 0.287 (6.71 - 7.29) 10°- 16° 5 GM9623 350mA, High Voltage LED driver with Build in Power FET Ordering Number GM 9623 APM Gamma Micro Circuit Type ST3 R G Package Type Shipping Type ST3: SOT223 R: Taping & Reel T: Tube Blank: Pb-free G:Green Note: Pb-free products: ♦ RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020. ♦ Suitable for use in SnPb or Pb-free soldering processes with 100% matte tin (Sn) plating. GM9623 V0.01 Preliminary Information Green products: 6 ♦ Lead-free (RoHS compliant) ♦ Halogen free(Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight)