SP6682EU

® SP6682 High Efficiency Charge Pump Regulator for White LEDs FEATURES ■ Ideal For White LED Driver ■ Low Profile, Inductorless Regulator ■ X1.5 and X2 Modes for Highest Efficiency ■ +2.7V to +5.5V Input Voltage Range ■ Fast Turn-On Time, 175µS ■ 1mA Quiescent Current ■ 85%. By using an external inductor, MOSFET and diode, high output voltage can be generated to drive 12 white LEDs (2 branches, each branch has 6 white LEDs in series). The current through the white LEDs is determined by: ILED = VFB R1 The SP6682 can also be configured as a high voltage boost converter to drive more than 10 white LEDs. Figure 15 shows the schematic of L1 LQH32CN4R7M11 4.7uH DS SCHOTTKY MBR0530 ILED = VFB/R1 = 20mA D1 D2 D7 D8 100 95 SP6682 1 2 VOUT C1P VIN VMODE FB C2P C1N GND C2N EN/PWM 10 9 8 7 6 Q1 SI1304 SOT23 25V 2.2uF 25V C3 X5R Ceramic Efficiency (%) D3 D9 Vin: 2.7-4.2V 90 85 80 75 3 4 D4 D10 C1 5 R3 1M 10uF X5R Ceramic D5 D6 D11 D12 EN/PWM R1 15 R2 15 70 2.7 3.0 3.3 3.6 3.9 4.2 VIN (V) Figure 15. Using SP6682 as a High Voltage White LED Driver PINOUTS VOUT C1P VIN VMODE FB 1 2 3 4 5 10 C2P VOUT 1 C1P 2 VIN 3 VMODE 4 FB 5 10 C2P SP6682 10 Pin DFN 9 C1N 8 GND 7 C2N 6 EN/PWM SP6682 10 Pin MSOP 9 C1N 8 GND 7 C2N 6 EN/PWM Date: 5/5/04 SP6682 High Efficiency Charge Pump Regulator for White LEDs © Copyright 2004 Sipex Corporation 9 PACKAGE: 10 PIN MSOP (ALL DIMENSIONS IN MILLIMETERS) D e1 Ø1 E/2 R1 R Gauge Plane L2 Seating Plane 1 2 E E1 Ø1 L L1 Ø e Pin #1 indentifier must be indicated within this shaded area (D/2 * E1/2) Dimensions in (mm) 10-PIN MSOP JEDEC MO-187 (BA) Variation MIN NOM MAX 0 0.75 0.17 0.08 0.85 3.00 BSC 4.90 BSC 3.00 BSC 0.50 BSC 2.00 BSC 0.4 0.07 0.07 0º 0º 0.60 0.95 0.25 10 0.80 8º 15º 1.1 0.15 0.95 0.27 0.23 A A1 A2 b c D E E1 e e1 L L1 L2 N R R1 Ø Ø1 (b) WITH PLATING c BASE METAL D A2 b A1 A 1 Date: 5/5/04 SP6682 High Efficiency Charge Pump Regulator for White LEDs © Copyright 2004 Sipex Corporation 10 PACKAGE: 10 PIN DFN Top View D Bottom View e b D/2 1 2 E/2 E K L E2 Pin 1 identifier to be located within this shaded area. Terminal #1 Index Area (D/2 * E/2) D2 10 Pin DFN (JEDEC MO-229, VEED-5 VARIATION) DIMENSIONS in (mm) SYMBOL A A1 A3 b D D2 e E E2 K L MIN NOM MAX 0.80 0.90 1.00 A A1 A3 0 0.02 0.05 0.20 REF 0.18 0.25 0.30 3.00 BSC 2.20 2.70 0.50 PITCH 3.00 BSC 1.40 1.75 0.20 0.30 0.40 0.50 Side View 10 PIN DFN Date: 5/5/04 SP6682 High Efficiency Charge Pump Regulator for White LEDs © Copyright 2004 Sipex Corporation 11 ORDERING INFORMATION Part Number Top Mark Operating Temperature Range Package Type SP6682EU ....................... SP6682EU....................................40°C to +85°C ............................. 10 Pin MSOP SP6682EU/TR ................. SP6682EU....................................40°C to +85°C ............................. 10 Pin MSOP SP6682ER ....................... SP6682EURYWW.........................40°C to +85°C ................................ 10 Pin DFN SP6682ER/TR ................. SP6682ERYWW...........................40°C to +85°C ................................ 10 Pin DFN Available in lead free packaging. To order add "-L" suffix to part number. Example: SP6682ER/TR = standard; SP6682ER-L/TR = lead free /TR = Tape and Reel Pack quantity is 2,500 for MSOP and 3,000 for DFN. Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Date: 5/5/04 SP6682 High Efficiency Charge Pump Regulator for White LEDs © Copyright 2004 Sipex Corporation 12