cat4106 ON Semiconductor, cat4106 Datasheet
cat4106
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cat4106 Summary of contents
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... SCILLC. All rights reserved. Characteristics subject to change without notice DESCRIPTION The CAT4106 is an integrated multi-channel LED driver and high power DC/DC converter suitable for powering backlighting applications total of 6 watts four matched LED strings can be accurately programmed with uniform drive current set by a single external resistor ...
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... Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. Doc. No. MD-5037, Rev. A (1) ¯¯¯¯¯¯ Conditions I = 100 mA LED DIMMING Figure 3. CAT4106 EN/PWM Timing 2 Ratings -0. -0. -0. -65 to +160 -40 to +150 300 Range 3.0 to 5.5 3 ...
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... Active (0.1 V bias) FAULT ¯¯¯¯¯¯ is Inactive FAULT Normal switching mode regulation I = 500 mA SW Prior to Current Limiting Prior to Pulse-Skipping Enters Low Power mode 3 CAT4106 Min Typ Max Units 2.5 3.5 2.0 3.0 mA 3.4 4.4 2.9 3.9 1 µA ...
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... CAT4106 TYPICAL ELECTRICAL OPERATING CHARACTERISTICS VIN = 25ºC, typical application circuit unless otherwise specified. AMB Quiescent Current vs. RSET Current 8 6 switching 0.0 0.5 1.0 RSET CURRENT [mA] RSET Voltage vs. Temperature 1.30 1.25 1.20 1.15 1.10 - TEMPERATURE [ºC] LED Channel Current vs. LED Pin Voltage 200 175 150 ...
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... SCILLC. All rights reserved. Characteristics subject to change without notice FAULT Drive R 5.0 5.5 Switching Frequency vs. VIN Supply 4.5 5.0 5.5 4.5 5.0 5.5 5 vs. VIN Supply DSON 3.0 3.5 4.0 4.5 5.0 5.5 VIN SUPPLY [V] 1.2 1.1 1.0 0.9 0.8 3.0 3.5 4.0 4.5 5.0 5.5 VIN SUPPLY [V] Powerdown Delay vs. VIN Supply 3.0 3.5 4.0 4.5 5.0 5.5 VIN SUPPLY [V] Doc. No. MD-5037, Rev. A CAT4106 ...
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... CAT4106 TYPICAL ELECTRICAL OPERATING CHARACTERISTICS VIN = 25ºC, typical application circuit unless otherwise specified. AMB EN/PWM Threshold vs. VIN Supply 1.00 0.95 0.90 VHI 0.85 0.80 0.75 0.70 3.0 3.5 4.0 4.5 VIN SUPPLY [V] PWM Dimming 100 Hz Power- LEDs per Channel Doc. No. MD-5037, Rev. A PWM Duty Cycle vs. LED Current ...
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... OUTPUT CURRENT [mA] © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice Efficiency vs. VL (VIN = 5V) 100 5.3 5.5 8 200 240 7 CAT4106 = 25ºC, typical application circuit AMB VOUT = 24V INDUCTOR VOLTAGE [V] Doc. No. MD-5037, Rev. A ...
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... CAT4106 PIN DESCRIPTION TQFN-16 Name Function TSSOP-16 LED1 1 LED1 cathode terminal GND 2 Signal Ground reference ¯¯¯¯¯¯ 3 Open/Short LED Fault detection output (active-low) FAULT PGND 4 Power Ground Reference (DC/DC Power Switch Feedback reference (300 mV) for setting LED channel operating voltage ...
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... GND is the ground reference pin for the device. All analog control voltages are referenced to this pin. In addition, all LED drive currents are conducted through the GND pin. TAB is the thermal pad connection of the package and should be connected to PCB ground plane. 9 CAT4106 ⎛ ⎞ × ⎜ ⎜ ...
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... RSET Figure 4. CAT4106 Simplified Functional Block Diagram DEVICE OPERATION In a typical application, the CAT4106 drives an LED array consisting four separate strings. A single external resistor value is used to select the drive level in all output channels. Each channel provides a very well regulated and tightly matched bias current on all LED strings ...
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... Characteristics subject to change without notice The test condition in Figure 5 is with one LED pin shorted to the output (top LED anode). The test condition in Figure 6 is with one LED pin floating or disconnected. In both cases, the CAT4106 is set to drive 50 mA per channel. SETTING VFMIN LEVEL (SHORT-LED) + ...
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... PWM frequency. Doc. No. MD-5037, Rev. A ONE OR TWO LED STRING APPLICATIONS The CAT4106 can be used to drive one or two strings of LEDs by connecting together some LED pins. Also for applications requiring LED current greater than 175 mA, LED channels can be tied together, assuming the supply is suitable to drive the load ...
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... Recommended Layout The board layout should provide good thermal dissipation through the PCB. Multiple via can be used to connect the tab of the CAT4106 to a large ground plane underneath the package. Input capacitor C1 should be placed as close to the driver IC as possible. The RSET resistor (R1) and channel voltage setting resistor (R3) should have a Kelvin connection to the GND pin of the CAT4106 ...
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... CAT4106 PACKAGE OUTLINE DRAWINGS TQFN 16-Pad (HV4) D PIN#1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.70 0.75 A1 0.00 0.02 A3 0.20 REF b 0.25 0.30 D 3.90 4.00 D2 2.00 – E 3.90 4.00 E2 2.00 – e 0.65 BSC L 0.45 – For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. Angles in degrees. ...
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... θ1 END VIEW MAX 1.10 0.15 0.95 0. 0.20 5.10 6.50 4.50 0.75 1.00 6.70 4.80 0.47 8° For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. 15 CAT4106 X Y EXPOSED THERMAL PAD ZONE BOTTOM VIEW X ± 0.076 Y ± 0.076 S e LAND PATTERN Doc. No. MD-5037, Rev ...
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... All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard plated finish is NiPdAu. (3) TSSOP only available in Matte-Tin plated finish. (4) The device used in the above example is a CAT4106HV4-GT2 (TQFN (5) For additional temperature options, please contact your nearest ON Semiconductor Sales office. Doc. No. MD-5037, Rev. A (1) ...
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... CAT4106 REVISION HISTORY Date Revision Description 17-Feb-09 A Initial Issue ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability 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. “ ...