CAT4139AEVB

CAT4139AEVB CAT4139 LED Driver Evaluation Board User's Manual http://onsemi.com Introduction This document describes the CAT4139AEVB evaluation board for the CAT4139 high efficiency step-up LED driver. The CAT4139 delivers an accurate constant current ideal for driving LEDs. EVAL BOARD USER’S MANUAL Schematic L1 VL C3 4.7 mF VIN K1 22 mH R5 0W C1 1 mF EN R4 200 kW VOUT C2 1 mF D1 U1 VIN SW CAT4139 SHDN GND FB R3 (300 mV) 1 kW LED R2 47 W R1 2.2 W Figure 2. CAT4139AEVB Board Figure 1. CAT4139AEVB Schematic Table 1. BILL OF MATERIALS Name Manufacturer U1 ON Semiconductor, Catalyst Group C1 C2 Description Part Number Units High Efficiency Boost LED Driver, SOT23-5 CAT4139 1 Taiyo Yuden Ceramic Capacitor 1.0 mF/6.3 V X5R, Size 0805 JMK212BJ105KK-T 1 Taiyo Yuden Ceramic Capacitor 1.0 mF/50 V X7R, Size 1210 UMK325BJ105KH-T 1 C3 Taiyo Yuden Ceramic Capacitor 4.7 mF/6.3 V X5R, Size 0805 JMK212BJ475KD-T 1 D1 TSC Schottky Diode 40 V/1 A, Sub SMA SS14L 1 Inductor 22 mH/0.7 A NPIS43D220MTRF 1 SMT Resistor 2.2 W/250 mW, Size 1206 ERJ-8GEYJ2R2V 1 L1 NIC R1 Panasonic R2 Vishay Trim Pot 200 W/500 mW, Multi-Turn T93YA470KT20 1 R3 Yageo SMT Resistor 1 kW/100 mW, Size 0603 RC0603FR-071KL 1 R4 Yageo SMT Resistor 200 kW/100 mW, Size 0603 RC0603FR-07200KL 1 R5 Yageo SMT Resistor 0 W/125 mW, Size 0805 RC0805JR-070RL 1 K1 Tyco 2 Pin Header Connector 0.1” Pitch 640452-2 1 © Semiconductor Components Industries, LLC, 2011 September, 2011 − Rev. 3 1 Publication Order Number: EVBUM2020/D onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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