3-Channel Constant-Current RGB LED Driver with Individual PWM Dimming CAT4109, CAV4109 Description www.onsemi.com The CAT4109/CAV4109 is a 3 channel constantcurrent LED driver, requiring no inductor. LED channel currents up to 175 mA are programmed independently via separate external resistors. Low output SOIC16 voltage operation of 0.4 V at 175 mA allows for more power efficient V SUFFIX designs across wider supply voltage range. The three LED pins are CASE 751BG compatible with high voltage up to 25 V supporting applications with long strings of LEDs. Three independent control inputs PWM1, PWM2, PWM3, control PIN CONNECTIONS respectively LED1, LED2, LED3 channels. The device also includes 1 an output enable (OE) control pin to disable all three channels PGND VDD independently of the PWMx input states. OE GND Thermal shutdown protection is incorporated in the device to PWM3 NC disable the LED outputs whenever the die temperature exceeds 150C. The device is available in a 16lead SOIC package. PWM2 NC NC PWM1 Features 3 Independent Current Sinks up to 175 mA rated 25 V RSET3 LED1 LED Current Set by External Low Power Control Resistors RSET2 LED2 Individual PWM Control per Channel LED3 RSET1 Low Dropout Current Source (0.4 V at 175 mA) (Top View) Output Enable Input for Dimming MARKING DIAGRAM Zero Current Shutdown Mode 3 V to 5.5 V Logic Supply Thermal Shutdown Protection L3A 16lead SOIC Package CAT4109VB YMXXXX CAV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AECQ100 Qualified and PPAP Capable These Devices are PbFree, Halogen Free/BFR Free and are RoHS L = Assembly Location 3 = PB Free Compliant A = Product Revision (Fixed as A) CAT4109V = Device Code Application B = Leave Blank Multicolor LED, Architectural Lighting Y = Production Year (Last Digit) LED Signs and Displays M = Production Month (19, O, N, D) XXXX = Last Four Digits of Assembly Lot Number LCD Backlight ORDERING INFORMATION Device Package Shipping CAT4109VGT2 SOIC16 3,000/ (Note 1) (PbFree) Tape & Reel CAV4109VGT2 SOIC16 3,000/ (Note 1) (PbFree) Tape & Reel 1. Lead Finish PbFree Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: January, 2021 Rev. 7 CAT4109/DCAT4109, CAV4109 VIN 5 V to 25 V VDD 3 V to 5.5 V C1 1 F RED GREEN BLUE VDD LED1 LED2 LED3 OE PWM1 CONTROLLER PWM2 CAT4109/CAV4109 PWM3 RSET1 RSET2 RSET3 GND PGND R1 R2 R3 Figure 1. Typical Application Circuit Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Units VDD Voltage 6 V Input Voltage Range (OE, PWM1, PWM2, PWM3) 0.3 V to 6 V V LED1, LED2, LED3 Voltage 25 V DC Output Current on LED1 to LED3 200 mA Storage Temperature Range 55 to +160 C Junction Temperature Range 40 to +150 C Lead Soldering Temperature (10 sec.) 300 C ESD RATING Human Body Model (Note 2) V LV pins (non LEDn pins 3, 4, 5, 6, 7, 8, 15 and 16) 1500 HV pins( LEDn pins 9, 10 and 11) 500 Machine Model (Note 3) V LV pins (non LEDn pins 3, 4, 5, 6, 7, 8, 15 and 16) 200 HV pins ( LEDn pins 9, 10 and 11) 175 Charged Device Model (Note 4) 1000 V Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 2. JESD22A114C 3. JESD625A 4. JESD22C101E Table 2. RECOMMENDED OPERATING CONDITIONS Parameter Range Units VDD 3.0 to 5.5 V Voltage applied to LED1 to LED3, outputs off up to 25 V Voltage applied to LED1 to LED3, outputs on up to 6 (Note 5) V Output Current on LED1 to LED3 2 to 175 mA Ambient Temperature Range CAT4109 40 to +85 C CAV4109 40 to +105 C Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. 5. Keeping LEDx pin voltage below 6 V in operation is recommended to minimize thermal dissipation in the package. www.onsemi.com 2