LED Control IC W2RG012RN Optimal IC for LED Control An exponential function-based PWM gradation control for up to 256 gradations, enabling beautiful fade-in and fade-out. Dynamic drive of LEDs connected in a matrix form individual control of up to 128 LED Lines. Serial bus connection permitting connection of up to 15 ICs on the same communication line. 24 constant current outputs contained in a small package of 7x7mm. Built-in thermal shutdown. RoHS Compliant Ordering Information Description Model LED Control IC W2RG012RN Specifications Absolute Maximum Ratings Item Symbol Rating Applicable Terminal Supply Voltage V -0.3 to 7.0 V V DD DD Input Voltage V -0.3 to V + 0.3 7.0 V IN DD SDA, SCL, RST, CE, ADR1, ADR0, DIV, COM Signal Output Voltage V -0.3 to V + 0.3 7.0 V SDO, OUTDC SOUT DD Drive Output Voltage V -0.3 to 20 V OUT0R~7R, OUT0G~7G, OUT0B~7B, OUTS0~S3 DOUT Drive Output Current/pin I 80 mA OUT0R~7R, OUT0G~7G, OUT0B~7B DOUT (See note 1) Switch Output Current/pin I 20 mA OUTS0~S3 DOUTS Pd1 3.43 W - - - Allowable Power Dissipation Pd2 1.80 W - - - (See note 2) Pd3 1.16 W - - - Ambient Operating Temperature T -20 to 85 C --- OPR Ambient Storage Temperature T -40 to 150 C --- STG Note: 1. Take the power consumption and allowable power dissipation rating into consideration. 2. Values when the product is mounted on a standard substrate (70 mm x 70 mm x1.6 mmt, FR-4). When using the product at Ta = 25C or higher, the values must be decreased using the constant of temperature decrease R mW/C . td 2 Pd1: R = 27.4 mW/C for a double-sided substrate with a back layer copper foil area of 4,900 mm td 2 Pd2: R = 14.4 mW/C for a double-sided substrate with a back layer copper foil area of 225 mm td 2 Pd3: R = 9.28 mW/C for a single-sided substrate with a copper foil area of 36 mm td Curve of Heat Reduction Ratio 2 Back copper foil: 4,900 mm 3430 Back copper foil: 2 225 mm 1800 Copper foil: 2 36 mm 1160 0 25 85 150 Ambient Temperature (C) LED Control IC W2RG012RN 1 Allowable dissipation (mW)Recommended Operating Conditions Item Symbol Rating Applicable Terminal Supply Voltage V 3.0 to 5.5 V V DD DD Input Voltage V 0toV V IN DD SDA, SCL, RST, CE, ADR1, ADR0, DIV, COM Signal Output Current I -10 to 10 mA SDO, OUTDC SOUT Communication Clock Frequency (See note 1) f Max. 5 MHz SCL SCL Note: 1. Take the timing characteristics into consideration. DC Electrical Characteristics (Ta = 25C, V = 5V) DD Spec. Applicable Item Symbol Condition Unit terminal Min. Typ. Max. High-level Input Voltage V --- V x0.7 --- --- V IH DD SDA, SCL, RST, CE Low-level Input Voltage V --- --- --- V x 0.3 V IL DD V 10 output V x0.9 --- V + 0.3 V AD1 DD DD V 11 output V x0.6 --- V x 0.7 V AD2 DD DD A/D Input Voltage ADR1, ADR0, DIV, COM V 01 output V x0.3 --- V x 0.4 V AD3 DD DD V 00 output -0.3 - - - V x 0.1 V AD4 DD High-level Signal Output Voltage V I =-5mA V -0.5 --- --- V SOH SOUT DD SDO, OUTDC Low-level Signal Output Voltage V I =5mA --- --- 0.5 V SOL SOUT ON Resistance1 R --- --- 6.3 10 ON1 OUT0R~7R Inter-pin Current Accuracy IP I =20mA -3 --- 3 % DOUT OUT0G~7G Inter-device Current Accuracy ID I =20mA -6 --- 6 % DOUT OUT0B~7B Drive Output Leak Current I --- --- --- 1 A DL ON Resistance2 R --- --- 9 20 OUTS0~S3 ON2 Operating Current Consumption I Total Output: I =20mA --- 5 7 mA V DD DOUT DD Timing Characteristics (Ta = -20 to 85 C, V = 3.0 to 5.5V) DD Serial Communication with Address Spec. Applicable Item Symbol Condition Unit terminal Min. Typ. Max. Communication Clock t --- 100 - - - - - - ns SCL SCL Pulse Width Data Setup Time t --- 90 --- --- ns SDA SU SCL,SDA Data Hold Time t --- 90 --- --- ns SDA HD t --- 50 --- --- ns CE SU CE Setup Time SCL, SDA, CE t --- 50 --- --- ns CE HD CE Hold Time Data Output Time t Load capacity: 100 pF - - - - - - 80 ns SCL, SDO SDO SDA 50 % t t SDA SU SDA HD SCL 50 % t t SCL SCL t SDO SDO 50 % t t CE SU CE HD CE 50 % 2 LED Control IC W2RG012RN
