LED22V1A

Analog Technologies, Inc. LED22V1A HIGH EFFICIENCY LED CONTROLLER Main Features: output current adjustable, supply current monitoring, high efficiency, high power density, high precision, small size, fault protection, low output ripple current and low cost. Specifications Part number: Input voltage: Output voltage: Maximum output current: Efficiency: Dimming control voltage: Packaging: Operating temperature: Dimension: Output Pin Description Pin 1, GND, the signal and power ground. Connect the negative power supply terminal to this pin. LED22V1A 7V to 22V 1V to power supply voltage – 0.5V 1A 90% typical 0 to 1.25V FR-4 PCB −10° C to 85° C 25mm × 14mm × 5.5mm Pin 2, VPSPR, the power supply positive input. Connect the positive power supply terminal to this pin. When using this pin, the power supply current will be monitored (See Pin 7) and the controller will be turned off when the current exceeds 2.27A. The current sense resistor is of 0.022Ω . Pin 3, VPSDR, the power supply positive input. Connect the positive power supply terminal to this pin. When using this pin, the power supply current will not be monitored and the controller will not be turned off when the power supply current exceeds 2.27A. The efficiency will be higher by using this pin since the power supply current does not go through the 0.022Ω resistor, as opposed to using Pin 2. Pin 4, LIS, analog input control voltage. Setting this voltage by using a POT (Potentiometer) or a DAC from 0 to 1.25V will set the output current from 0 to 1A. The input impedance of this pin is 100KΩ . Leaving this pin float will allow the POT on the PCB to set the output current which sets the output current from 0 to 1A, turning clock-wise to increase the current. analog output, reference voltage, 20ppm/ ° C, ± 1mA. digital input, shut down negative logic, 0 to 0.8V = shut down; 2V to 5V = turn on. Leaving this pin open will enable the controller. analog output, power supply current indication. It will be effective when connecting the positive power supply terminal through VPSPR (Pin 2). Power supply current = [voltage at PSIO]*0.91. For example, when the output voltage is 2V, the power supply current = 2*0.91 = 1.82A. analog output for LED anode. Connect this pin to the LED positive terminal, the anode. power ground, connect this pin to the LED negative terminal, the cathode. Pin 5, 2.5V, Pin 6, SDNG, Pin 7, PSIO, Pin 8, LEDA, Pin 9, GND, 550 E. Weddell Drive, Suite 4, Sunnyvale, CA 94089. U. S. A. Tel.: (408) 747-9760, Fax: (408) 747-9770. www.analogtechnologies.com © C opyright 1999 – 2003, Analog Technologies, Inc. All Rights Reserved. Updated: 4/28/03 1/3 Analog Technologies, Inc. LED Controller Power Supply 0V Power Supply 7V to 22V (Connect to Pin 2 or Pin 3) Power Supply 7V to 22V W1 (Optional: for dimming control) 5K to 10K 1 3 2 3 4 5 6 7 VPSDR LIS 2.5V SDNG PSIO LED22V1A LEDA 9 1 2 GND VPSPR GND 10 LED22V1A LED 1W or 5W 0 to 1A S1 Switch (Optional: for turning on and off) ADC or V meter Figure 1 Typical Application of LED Controller LED22V1A Components GND 1 VPSPR 2 POT 9 8 GND LEDA Soldering pads VPSDR 3 LIS 4 2.5V 5 SDNG 6 PSIO 7 13.8 ± 0.1 mm 25 ± 0.1 mm Figure 2 Top View Components Soldering pads 5.5mm Soldering pads Components 1.2 mm Figure 3 Side View 550 E. Weddell Drive, Suite 4, Sunnyvale, CA 94089. U. S. A. Tel.: (408) 747-9760, Fax: (408) 747-9770. www.analogtechnologies.com © C opyright 1999 – 2003, Analog Technologies, Inc. All Rights Reserved. Updated: 4/28/03 2/3 Analog Technologies, Inc. LED22V1A Part Numbers for Ordering Part Number LED22V1A-350MA LED22V1A-700MA LED22V1A-ADJ Input Voltage 7V ~ 22V 7V ~ 22V 7V ~ 22V Output Current 350mA 700mA Adjustable Application For driving one to five 1W Luxeon LED For driving one to two 5W Luxeon LED For driving one to five 1W Luxeon LED or one to two 5W Luxeon LED Prices and Lead-Times for Ordering Part Number LED22V1A-350MA LED22V1A-700MA LED22V1A-ADJ Lead Time 1 – 9 PCs $19 $19 $28 1 week 10 – 49 PCs $16 $16 $24 2 weeks 50 – 249 PCs $14 $14 $18 2 weeks 250 – 999 PCs $11 $11 $14 3 weeks 1000 PCs and up $9.5 $9.5 $12 Contact us Payment Term: Credit cards or P.O.s with 50% down payment 50% net 30. Note: ATI retains the ownership of full rights for its LED controller technologies, associated the designs for mechanics and electronics, plus all modifications, improvements, and inventions made by ATI. 550 E. Weddell Drive, Suite 4, Sunnyvale, CA 94089. U. S. A. Tel.: (408) 747-9760, Fax: (408) 747-9770. www.analogtechnologies.com © C opyright 1999 – 2003, Analog Technologies, Inc. All Rights Reserved. Updated: 4/28/03 3/3