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ON Semiconductor CAT4139 User manual

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Semiconductor Components Industries, LLC, 2011
September, 2011 −Rev. 3
1Publication Order Number:
EVBUM2020/D
CAT4139AEVB
CAT4139 LED Driver
Evaluation Board
User's Manual
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.
Schematic
Figure 1. CAT4139AEVB Schematic
VL
R4
200 kW
C3
4.7 mF
GND
VIN SW
FB
SHDN
CAT4139
U1
L1
22 mHD1
R3
1 kW
C2
1 mF
R1
2.2 W
R2
47 W
LED
VOUT
C1
1 mF
R5
0 W
VIN
EN
K1
(300 mV)
Figure 2. CAT4139AEVB Board
Table 1. BILL OF MATERIALS
Name Manufacturer Description Part Number Units
U1 ON Semiconductor,
Catalyst Group
High Efficiency Boost LED Driver, SOT23-5 CAT4139 1
C1 Taiyo Yuden Ceramic Capacitor 1.0 mF/6.3 V X5R, Size 0805 JMK212BJ105KK-T 1
C2 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
L1 NIC Inductor 22 mH/0.7 A NPIS43D220MTRF 1
R1 Panasonic SMT Resistor 2.2 W/250 mW, Size 1206 ERJ-8GEYJ2R2V 1
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
http://onsemi.com
EVAL BOARD USER’S MANUAL
CAT4139AEVB
http://onsemi.com
2
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arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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