AUR6360 12-CHANNEL LED DRIVER with Dimming Control Description Features AUR6360 is a 12-channel (R/G/B x 4) current-regulated external resistor setting R/G/B constant current LED driver with 3 external resistor for setting R/G/B High current accuracy between channels and ICs constant current individually. The chip enables serial Driver output: Maximum of 90mA per channel data-in and data-out interface with built-in shift registers, Maximum driver port voltage of 40V at OFF state internal data latches and storage registers. It is Serial-in clock frequency to 20 MHz designed ideally for full-color LED decorative or general Built-in data buffers for cascading clock, data, lighting, signs and display applications. strobe, and enable signal 技 12-channel (R/G/B x 4-sets) with 3 individual The output current levels of the low dropout-voltage Smart energy-saving mode drivers are established by the built-in BandGap Over temperature protection reference voltage with external resistors. Data, clock, 科 2 selectable data bank (shifters) (160°C shutdown, 85°C recovery) strobe, and enable output buffers can be used for Under Voltage Lock-out (UVLO) cascading with next AUR6360. The ultra high output Power supply voltage: 3.3V ~ 5.0V off-voltage is designed for driving more LEDs. Smart energy-saving mode can save power consumption automatically. The over temperature protection and 裕 明 under voltage lock out functions can provide safety Applications operation. Package Information LED Decorative Lighting LED Channel Letter LED General Lighting Flexible Indoor/Outdoor Video or Sign Displays LCD Display Backlighting Automotive or Instrument Panel Lighting SSOP28 2008/12/2 HSOP28 1 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 Ordering Information AUR6360□ □□□ Operation Temp. Range: Shipping Code: P :Pb free with Commercial standard R :tapping and reel G :Green (halogen free) B :bulk T :tray Package Code: 技 S :SSOP W :HSOP 裕 明 科 Block Diagram 2008/12/2 2 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 Pin Description PIN NAME R(G 1~3 、 B)REXT 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND VCC DSL DAI CKI STI ENI R[3] G[3] B[3] R[2] G[2] B[2] GND Pin Type FUNCTION 科 PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 技 BREXT GREXT RREXT DAO CKO STO ENO B[0] G[0] R[0] B[1] G[1] R[1] GND AI Driver output current setting pins for external resistor connections between (R, G and B)REXT and GND DAO DO Serial data output signal 5 CKO DO Clock output signal 6 STO DO Strobe output signal 7 ENO DO Enable output signal 裕 明 4 8,11,16,19 B[0:3] AO Open-drain driver current sink. 9,12,17,20 G[0:3] AO Open-drain driver current sink. 10,13,18,21 R[0:3] AO Open-drain driver current sink. Output enable control input: 22 ENI DI 23 STI DI 24 CKI DI 25 DAI DI output is turned on when ENI = “Low” output is high impedance when ENI = “High” Data-input strobe pulse, latches data into internal registers at the rising edge of STI (edge trigger) and CKI = “Low” Clock input pin for serial data transfer. Data is sampled at the rising edge of CKI Serial data input Serial data output selection: 26 DSL DI “Floating”: data to be shifted out at the falling edge of CKO “Low” : data to be shifted out at the rising edge of CKO 27 VCC POWER 28 GND GROUND 2008/12/2 Power supply voltage input Ground Pin 3 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 Equivalent Circuit of Inputs and Outputs 裕 明 2. ENI and DSL Pins 科 技 1. CKI, DAI and STI Pins 3. CKO, DAO, STO and ENO Pins 2008/12/2 4 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 Maximum Ratings ( Ta = 25°C , Tj(max) = 140°C) RATING UNIT Supply Voltage VCC - 0.3 ~ 7.0 V Logic Input Voltage VIN - 0.3 ~ VCC+0.3 V Driver Output Current IOUT 90 mA Driver Output Voltage VOUT - 0.3 ~ 40 V Input Clock Frequency FCKI 20 MHz GND Pin Current IGND 1100 mA Power Dissipation PD Thermal Resistance Operating Temperature Storage Temperature Rth(j-a) 技 SYMBOL 1.1 ( SSOP28 : Ta=25°C ) W 2.11 ( HSOP28 : Ta=25°C ) 113.3 ( SSOP16 ) °C/W 59.1 ( SOP16 ) Top - 40 ~ 85 °C - 55 ~ 150 °C 科 CHARACTERISTIC Tstg Recommended Operating Condition CHARACTERISTIC Supply Voltage SYMBOL CONDITION VCC MIN. TYP. MAX. UNIT 3.0 5.0 5.5 V 裕 明 Driver ON Driver Output Voltage VOUT IOUT Output Current IOH IOL Logic Input Voltage VIH VIL (IOUT = 90mA) 1.0 Driver Off (Driver) OUT (R, G, B) 40 5 90 2 (Logic) SERIAL-OUT VCC = 3.0V ~ 5.5V Single Chip Operation 0.7VCC VCC GND 0.3VCC 0 20 FCKI STI Pulse Width twSTI 20 CKI Pulse Width twCKI 20 ENI Pulse Width twENI VCC = 3.0V ~ 5.5V mA -2 Input Clock Frequency 200 Set-up Time of DAI tsetup(D) 25 Hold Time of DAI thold(D) 25 Set-up Time for STI tsetup(L) 20 2008/12/2 V (see dropout voltage diagram) 5 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY V MHz ns AUR6360 Electrical Characteristics( VCC = 5.0V, Ta = 25°C , Tj(max) = 140°C) SYMBOL CONDITION MIN. Logic Input Voltage ‘H’ Level VIH CMOS 0.7VCC VCC Logic Input Voltage ‘L’ Level VIL logic level GND 0.3VCC Driver Output Leakage Current IOL VOH = 17V 1.0 VOL IOL = 2mA 0.2 VOH IOH = -2mA Driver Output Current Skew (Channel to Channel) Driver Output Current Skew (Chip to Chip) Driver Current vs. Output Voltage Regulation Driver Current vs. Supply Voltage Regulation Thermal Shutdown Recovery Temperature IOL1 TYP. MAX. VCC-0.2 技 Logic Output Voltage (S-OUT) VOUT = 1.0V UNIT V µA V ±1 ±3 % ±3 ±6 % 0.1 0.5 IOUT = 20mA IOL2 % / VOUT VOUT = 1V~3V 科 CHARACTERISTIC % / VCC Tsd Trc VCC = 3.0V~5.5V Driver OFF %/V 2 160 °C 85 °C 10 mA VOUT = 1.0V IDD 裕 明 Supply Current Standby Current (energy-saving mode) ISD IOUT = 90mA Driver ON CKI = 20MHz DAI= 10MHz 10 Switching Test Diagram 2008/12/2 6 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY uA AUR6360 I/O Timing Diagrams: a) Timing of CKI, DAI, CKO and DAO twCLK 50% 50% CKI tsetup(D) thold(D) 50% 50% DAI tpLH(C) tpHL(C) 50% 50% 科 CKO 技 50% twCLK 50% DAO (DSL=low) tpHL(D) tpLH(D) 50% DAO 裕 明 (DSL=high) b) Timing of CKI and STI 2008/12/2 7 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 I/O Timing Diagrams: 科 技 c) Timing of STI and OUT 裕 明 d) Timing of ENI and OUT 2008/12/2 8 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 裕 明 科 技 Data Timing Diagrams: 2008/12/2 9 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 Output Current and Drop-Out Voltage: The output current level of individual driver is established by 3 external resistors REXT for each channel group. The output range of each driver is designed from 5mA to 90mA according to the equation below. It is recommended the voltage at driver output ports should be as low as possible for consideration of power dissipation and constant current operations. If operating driver over working temperature, AUR6360 will go into shutdown mode automatically and recover to normal mode until the junction temperature is lower than 85°C. A characteristic curve of output current 技 levels vs. setting resistor values is displayed in the following diagram. Iout (A) ～ 1.23 (V) / REXT (Ω) x 100 Output Current vs External Resistor 100 90 科 80 IOUT(mA) 70 60 50 40 30 20 10 裕 明 0 0 5 10 15 20 25 REXT(KΩ) The output current is kept constant for driving multiple LEDs in series with each driver before reaching the dropout voltage limits. LEDs with various forward voltages (VF) can be used within usable voltage headroom. Typical output current characteristic of an output driver is shown below for illustrating driver dropout voltage vs. output current level. Output Current vs Output Current 120 100 Iout(mA) 80 60 40 20 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Vout(V) 2008/12/2 10 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY AUR6360 科 技 AUR6360 Package Specification – SSOP28 Outline Drawing 裕 明 AUR6360 Package Specification – HSOP28 Outline Drawing 2008/12/2 11 AURAmicro CONFIDENTIAL PRELIMINARY & PROPRIETARY - DO NOT DISTRIBUTE OR COPY