CAT4008Y-T2 ON Semiconductor

CAT4008 8-Channel Constant Current LED Driver Description The CAT4008 is an 8 channel constant current driver for LED billboard and other general display applications. LED channel www.onsemi.com currents are programmed together via an external RSET resistor. Low output voltage operation on the LED channels as low as 0.4 V (for 2 to MARKING 100 mA LED current) allows for more power efficient designs. DIAGRAM A highspeed 4wire serial interface of up to 25MHz clock frequency controls each individual channel using a shift register and AB TSSOP16 latch configuration. A serial output data pin (SOUT) allows multiple 4008YZZ Y SUFFIX devices to be cascaded and programmed via one serial interface. The 3YMXXX CASE 948AN 1 device also includes a blanking control pin (BLANK) that can be used to disable all channels independently of the interface. CAT4008YT2 Thermal shutdown protection is incorporated in the device to A = Assembly Location disable the LED outputs if the die temperature exceeds a set limit. 3 = Lead Finish MatteTin The device is available in the TSSOP package. B = Product Revision (Fixed as B) 4008Y = Device Code Features Z or ZZ = Leave Blank 8 Constant Currentsink Channels Y = Production Year (Last Digit) M = Production Month (1-9, A, B, C) Serial Interface up to 25 MHz Clock Frequency XXX or XXXX = Last Three of Four Digits of 3 V to 5.5 V Logic Supply XXX or XXXX = Assembly Lot Number LED Current Range from 2 mA to 100 mA LED Current set by External RSET Resistor PIN CONNECTIONS 1 300 mV LED Dropout at 30 mA GND VDD Thermal Shutdown Protection SIN RSET SCLK SOUT Available in 16lead SOIC (150 and 300 mil wide), and TSSOP XLAT BLANK Packages LED1 LED8 These Devices are PbFree, Halogen Free/BFR Free and are RoHS LED2 LED7 Compliant LED3 LED6 LED4 LED5 Applications 16Lead TSSOP (Y) Billboard Display (Top View) Marquee Display Instrument Display ORDERING INFORMATION General Purpose Display See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet. Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: July, 2015 Rev. 3 CAT4008/DCAT4008 VIN 3 V to 20 mA 1 F 5.5 V VDD LED1 LED2 LED8 BLANK to next LATCH CAT4008 SOUT device SIN RSET CLK GND 3.09 k Figure 1. Typical Application Circuit Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Units V Supply Voltage 6 V DD Logic input/output voltage (SIN, SOUT, CLK, BLANK, LATCH) 0.3 V to V +0.3 V V DD LEDn voltage 6 V DC output current on LED1 to LED8 150 mA Storage Temperature Range 55 to +160 C Junction Temperature Range 40 to +150 C Lead Soldering Temperature (10 sec.) 300 C 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. Table 2. RECOMMENDED OPERATING CONDITIONS Parameter Range Units V 3.0 to 5.5 V DD Voltage applied to LED1 to LED8 0.4 to 5.5 V LED current RSET control range up to 100 mA Ambient Temperature Range 40 to +85 C www.onsemi.com 2 CONTROLLER