MBI6033 MACROBLOCK | Alldatasheet
Document overview
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Technical content
Features
Supply voltage - 6V~24V by internal LDO - 3.3V/5V direct input 3x4-channel constant-current sink driver for LED strips - Constant current range: 3~45mA @ VDD=6 ~24V or VDD=VCA=5V 3~30mA @ VDD=VCA=3.3V - 3 groups of current gain - Sustaining voltage at output channels: 28V (max.) Embedded 16-bit PWM generator - Gray scale clock generated by the embedded oscillator - 16-bit S-PWM patented technology Reliable data transmission - Daisy-chain topology - Two-wire transmission interface - Phase-inversed output clock - Built-in buffer for long distance transmission RoHS-compliant packages - SSOP-24 - TSSOP-24 - QFN-24 Application LED strips Mesh display Architectural lighting Thin Shrink SOP GTS: TSSOP24L-173-0.65 Quad Flat No-Lead GFN: QFN24L-4*4-0.5 Shrink SOP GP: SSOP24L-150-0.64
May 2014, V1.00 - 2 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Product Description MBI6033 is a 3x4-channel, constant-current, PWM-embedded sink driver for LED strips. MBI6033 provides constant current ranging from 3mA to 45mA for each output channel and are adjustable through only single external resistor and corresponding current gain settings. Besides, MBI6033 supports 6~24V wide range power systems and sustains 28V at output channels. With Scrambled-PWM (S-PWM) technology, MBI6033 enhances pulse width modulation by scrambling the “on” time into several “on” periods to increase visual refresh rate at the same gray scale performance. Besides, the gray scale clock (GCLK) is generated by the embedded oscillator. Moreover, MBI6033 provides 16-bit gray scale which provides 65,536 gray scales for each LED to enrich the color. 3 independent 7-bit current gain settings are built-in MBI6033, so the user can set independent output current for R/G/B LED by a single current set resistor and current gain instead of 3 current set resistors. In addition, MBI6033 features a two-wire transmission interface to make cluster-to-cluster connection easier. To improve the transmission quality, MBI6033 provides phase-inversed output clock to eliminate the accumulation of signal pulse width distortion. MBI6033 adopts manual-synchronization to maintain the synchronization of image frames between ICs.
May 2014, V1.00 - 3 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Pin Configuration Terminal Description Pin Names Attribute Description and function GP GTS* GFN* 1 1 16 REXT O Input terminals for setting output current by connecting to an external resistor 2, 3, 15, 2, 3, 15, 6, 15, 17,
18 GND P Ground terminal
21 C0 B0, OUTA0, O Output terminals for constant-current output
24 C1 B1, OUTA1, O Output terminals for constant-current output
10 10 1 NC - Leave it unconnected 11 11 2 SDI I Input terminal for serial data input 12 12 3 CKI I Input terminal for clock input 13 13 4 CKO O Output terminal for clock output 14 14 5 SDO O Output terminal for serial data input 16, 17, 16, 17, 10, 11,
12 C2 B2, OUTA2, O Output terminals for constant-current output
19, 20, 19, 20, 21 7, 8, 9 C3 B3, OUTA3, O Output terminals for constant-current output 23 23 13 VDD P Input voltage, 3.3V/5V/6~24V 24 24 14 VCA O Connecting a capacitor to GND to enhance the stability of CA *The desired thermal conductivity will be improved on c ondition that a heat-conducting copper foil on PCB is soldered with thermal pad. MBI6033GP Top View MBI6033GFN Top View MBI6033GTS Top View 87 91 01 1 1 2 2324 22 21 20 19 GND CKO SDI NC GND CA GND REXT GND VDD OUTA2 OUTB2 OUTC2 OUTA1 OUTB1 OUTC1 Thermal Pad CKI SDO OUTA3 OUTB3 OUTC3 OUTA0 OUTB0 OUTC01 24REXT GND GND OUTC2 OUTB3 OUTA3 OUTC1 OUTC3 OUTA2 OUTB2OUTB1 NC SDI CKI OUTB0 OUTC0 OUTA1 OUTA0 CA VDD GND GND SDO CKO 24REXT GND GND OUTC2 OUTB3 OUTA3 OUTC1 OUTC3 OUTA2 OUTB2OUTB1 NC SDI CKI OUTB0 OUTC0 OUTA1 OUTA0 CA VDD GND GND SDO CKO Thermal Pad
May 2014, V1.00 - 4 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Typical Application Circuit Note: 1. TVS1~TVS3 are Transient Voltage Suppressor (TVS). 2. C1~C2 are required. The values of the C1~C2 are reference only. Tantalum capacitors and Ceramic capacitors are recommended. 3. For hot plug, system grounding, connector design, external ESD protection, or detailed circuit information, please refer to the “MBI6033 Application Note” for detailed information. CA VDD OUTC0O U T A 3 SDI CKI REXT SDO CKO MBI6033GTS C 1 1uF 23 4 21 SD I CKIGND SDO CKOGND GND GND VDS VLED J 1 J2 … … VIN VOUT GND J 3 VIN TVS 1 option option GND 0.1uF TP TP=Thermal Pad TVS 2 TVS3
May 2014, V1.00 - 5 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Block Diagram OUTA0 SDO SDI CKI Shift Register CKO Decoder & Data Dispatcher ComparatorData Register Oscillator PWM Counter Buffers IOA Regulator R-EXT IOB Regulator IOC Regulator OUTB0 OUTC3OUTC0 ComparatorData Register GCLK Frequency Divider ComparatorData Register OUTA1 ComparatorData Register ComparatorData Register Current Setting &7-bit Current Gain
May 2014, V1.00 - 6 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Equivalent Circuits of Inputs and Outputs CKO、SDO terminals CKI、SDI terminals REXT t e r m i n a l s O U T A n 、Bn、Cn termainal VDD
May 2014, V1.00 - 7 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Maximum Rating Characteristic Symbol Rating Unit Supply Voltage V DD 0~28 V LDO Output Voltage V CA 0~7 V Sustaining Voltage at CKI, SDI Pins V IN -0.4~V CA+0.4 V Sustaining Voltage at CKO, SDO Pins V OUT -0.4~VCA+0.4 V Sustaining Voltage at OUTn Pins V DS -0.5~+28 V Output Current per Output Channel I OUT +50 mA GND Terminal Current I GND 630 mA Heat dissipation (On 4-Layer PCB, Ta=25°C)* GP P D 1.76 W GTS P D 2.14 W GFN P D 3.19 W Thermal Resistance (By simulation, on 4-Layer PCB)* GP R th(j-a) 70.9 °C/W GTS R th(j-a) 58.45 °C/W GFN R th(j-a) 39.15 °C/W Junction Temperature T j,max 150** °C Operating Ambient Temperature T opr -40~+85 °C Storage Temperature T stg -55~+150 °C ESD Rating Human Body Mode (MIL-STD-883G Method 3015.7) HBM Class 2 (2000V to 3999V) - Machine Mode (JEDEC EIA/JESD22-A115,) MM Class M3 (200V to 399V) - *The PCB size is 76.2mm*114.3mm in simulation. Please refer to JEDEC JESD51. ** Operation at the maximum rating for extended periods may reduce the device reliability; therefore, the suggested junction temperature of the device is under 125°C. Note: The performance of thermal dissipation is strongly re lated to the size of thermal pad, thickness and layer numbers of the PCB. The empirical thermal resistance may be different from simulative value. Users should plan for expected thermal dissipation performance by selecting pa ckage and arranging layout of the PCB to maximize the capability.
May 2014, V1.00 - 8 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips
Electrical Characteristics
(VDD=6.0~24.0V or VDD=VCA=5V, Ta=25°C) Characteristics Symbol Condi tion Min. Typ. Max. Unit Supply Voltage V DD - 6 - 24 V VDD=VCA 4.5 5 5.5 Sustaining Voltage at OUT Ports VDS OUTAn ~ OUTCn =Off - - 28 V Output Current I OUT Refer to “Test Circuit for Electrical Characteristics” 5 - 45 mA Driving Current IOH CKO, SDO at V OH=VCA-0.2V 1.5 2.5 4.5 mA IOL CKO, SDO at V OH=0.2V 1.0 2.0 4.0 mA Output Leakage Current I OUT VDS=28.0V, OUTAn ~ OUTCn =Off - - 1.0 μA Current Skew (Channel) dI OUT1 IOUT=20mA VDS=1.0V Rext=680Ω - ±1.5 ±3.0 % Current Skew (IC) dI OUT2 IOUT=20mA VDS=1.0V Rext=680Ω - ±1.5 ±6.0 % Output Current vs. Output Voltage Regulation* %/dVDS VDS within 1.0V and 3.0V - ±0.1 ±0.5 %/V Output Current vs. Supply Voltage Regulation* %/dVDD VDD within 6V and 24V - ±1.0 ±2.0 %/V Input Voltage of CKI and SDI Pins “H” level V IH - 2.0 - V CA V “L” level V IL - GND - 0.8 V Output Voltage of CKO and SDO Pins “H” level V OH I OH=+2.0mA V CA-0.2 - - V “L” level V OL I OL=-2.0mA - - 0.2 V Voltage at R-EXT V REXT OUTAn ~ OUTCn =On 0.58 0.617 0.64 V Knee Voltage* V Knee R ext=467Ω at IOUT=30mA - 0.75 0.8 V Supply Current** “Off” I DD(off) All channel off ,REXT open 2.0 3.0 4.5 mA Rext=680Ω, CKI, SDI=Low, CKO, SDO=NC, OUTAn ~ OUTCn =Off 6.0 8.0 10 “On” I DD(on) Rext=680Ω, CKI, SDI=Low, CKO, SDO=NC, OUTAn ~ OUTCn =On 7.0 9.0 11 Rext=680Ω, CKI=10MHz, CKO, SDO=NC, OUTAn ~ OUTCn =On 15 18 21 *One channel turns on. ** The supply current may vary with the loading conditions.
May 2014, V1.00 - 9 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips (VDD=VCA=3.3V, Ta=25°C) Characteristics Symbol Condi tion Min. Typ. Max. Unit Supply Voltage V DD V DD=VCA 3.0 3.6 V Sustaining Voltage at OUT Ports VDS OUTAn ~ OUTCn =Off - - 28.0 V Output Current I OUT Refer to “Test Circuit for Electrical Characteristics” 3 - 30 mA Driving Current IOH CKO, SDO at V OH=VCA-0.2V 1.5 2.5 4.5 mA IOL CKO, SDO at V OH=0.2V 1.0 2.0 4.0 mA Output Leakage Current I OUT VDS=28.0V, OUTAn ~ OUTCn =Off - - 1.0 μA Current Skew (Channel) dI OUT1 IOUT=20mA VDS=1.0V Rext=680Ω - ±1.5 ±3.0 % Current Skew (IC) dI OUT2 IOUT=20mA VDS=1.0V Rext=680Ω - ±1.5 ±6.0 % Output Current vs. Output Voltage Regulation* %/dVDS VDS within 1.0V and 3.0V - ±0.1 ±0.5 %/V Output Current vs. Supply Voltage Regulation* %/dV DD VDD within 3.0V and 3.6V - ±1.0 ±2.0 %/V Input Voltage of CKI, SDI Pins “H” level VIH - 2.0 - V CA V “L” level VIL - GND - 0.8 V Output Voltage of CKO, SDO Pins “H” level VOH I OH=+2.0mA V CA-0.2 - - V “L” level VOL I OL=-2.0mA - - 0.2 V Voltage at R-EXTA,B,C Pins VREXT OUTAn ~ OUTCn =On 0.58 0.617 0.64 V Knee Voltage* V Knee R ext=467Ω at IOUT=30mA 0.80 0.85 V Supply Current** “Off” I DD(off) All channel off ,REXT open 2.0 3.0 4.5 mA Rext=360Ω, CKI,SDI=Low, CKO, SDO= NC, OUTAn ~ OUTCn =Off 5.0 7.0 9.0 “On” I DD(on) Rext=680Ω, CKI,SDI=Low, CKO, SDO=NC, OUTAn ~ OUTCn =On 6.0 8.0 10.0 Rext=680Ω, CKI=10MHz, CKO, SDO=NC, OUTAn ~ OUTCn =On 14.0 17.0 20.0 *One channel turns on. **The supply current may vary with the loading conditions.
May 2014, V1.00 - 10 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Switching Characteristics (VDD=6.0~24.0V; VCA=VDD=5V, Ta=25°C) Characteristic Symbol Condition Min. Typ. Max. Unit Propagatio n delay time (“H” to ”L” or “L” to “H”) CKI↑-CKO↓ t VLED=5V CL=10pF Vds=1V R ext=680Ω RL =200Ω 11 16 21 ns CKO↓-SDO t P2 15 25 35 ns CKO↓-SDI t P5 15 25 35 ns GCLK↑–OUTA0 ,OUTA1 ,OUTA2 , OUTA3 ↓↑ tP7 32 40 48 ns GCLK↑–OUTB0 ,OUTB1 , OUTB2 ,OUTB3↓↑ tP8 40 48 56 ns GCLK↑–OUTC0,OUTC1,OUTC2 , OUTC3 ↓↑ tP9 48 56 64 ns Rise Time CKO/SDO/SDI t CR 2 5 8 ns OUTA ~ OUTC tOR1 20 30 40 ns Fall Time CKO/SDO/SDI t CF 2 5 8 ns OUTA ~ OUTC tOF1 20 30 40 ns Hold Time Setup Time SDI-CKI↓ t H(D) 8 - - ns CKI↓-SDI t S (D) 8 - - ns Pulse Width CKI t W 15 - - ns Frequency CKI F CKI Flat(AWG26), 50cm distance 0.2 - 10 MHz PWM clock F PCKL - 8.0 10 12.0 MHz Internal oscillator - - 8.0 10 12.0 MHz Timeout period** ttimeout - 21 - - us Note: *The maximum frequency may be limited by different application conditions. Please refer to the application note for details. The period of internal OSC is 8MHz (min.) ~ 12MHz (max.), so the time-out period is 168x83.3ns (13.9us) ~ 168x125ns (21us). Please refer to time out mechanism section. *The Gray Scale Clock Frequency is 12MHz (max.) when the GCLK=frequency of internal oscillator.
May 2014, V1.00 - 11 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Switching Characteristics (VDD=VCA=3.3V, Ta=25°C) Characteristic Symbol Condition Min. Typ. Max. Unit Propagation delay time (“H” to ”L” or “L” to “H”) CKI↑-CKO↓ t VLED=5V CL=10pF Vds=1V Rext=680Ω RL =200Ω 18 23 28 ns CKO↓-SDO t P2 20 30 40 ns CKO↓-SDI t P5 20 30 40 ns GCLK↑–OUTA0 ,OUTA1 , OUTA2 ,OUTA3 ↓↑ tP7 32 40 48 ns GCLK↑–OUTB0 ,OUTB1 , OUTB2 ,OUTB3↓↑ tP8 40 48 56 ns GCLK↑–OUTC0,OUTC1, OUTC2 ,OUTC3 ↓↑ tP9 48 56 64 ns Rise Time CKO/SDO/SDI t CR 2 5 8 ns OUTA ~ OUTC tOR1 25 35 45 ns Fall Time CKO/SDO/SDI t CF 2 5 8 ns OUTA ~ OUTC tOF1 25 35 45 ns Hold Time Setup Time SDI-CKI↓ t H(D) 10 - - ns CKI↓-SDI t S (D) 10 - - ns Pulse Width CKI t W 15 - - ns Frequency CKI F CKI Flat(AWG26), 50cm distance 0.2 - 10 MHz PWM clock F PCKL - 9.0 11.0 13.0 MHz Internal oscillator - - 9.0 11.0 13.0 MHz Timeout period** ttimeout 18.6 - - us Note: *The maximum frequency may be limited by different application conditions. Please refer to the application note for details. The period of internal OSC is 9MHz (min.) ~ 13MHz (max.), so the time-out period is 168x76.9ns (12.9us) ~ 168x111.1ns (18.6us). Please refer to time out mechanism section. *The Gray Scale Clock Frequency is 13MHz (max.) when the GCLK=frequency of internal oscillator.
May 2014, V1.00 - 12 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Test Circuit for Electrical / Switching Characteristics CKI CA OUTA1 OUTB1 OUTC1 OUTA2 OUTB2 OUTC2 OUTA3 OUTB3 OUTC3 CCA ICA IOH,IOL GND VCA Function Generator GND OUTA0 OUTB0 OUTC0 VDS VLED C2C1 R- EXT SDI Rext VIH,VIL VDD CKO SDO VDD C SDOCCKO IDD VIH=VDD VIL=GND Logic input waveform IOUT VOH VOL Logic output waveform VOH,VOL VREXT GND GND CL RL IOUT IOUT CL RL CL RL CL RL IOUT
May 2014, V1.00 - 13 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Timing Waveform Note: Odd IC means 1st, 3rd, 5th … ICs connected to controller Output Timing 1/FCKI tW tW CKI SDI CKO tP1 SDO tP2 ts(D) tH(D)
May 2014, V1.00 - 14 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Data programming sequence The above figure shows an application ex ample of MBI6033. The drivers ar e connected serially and the data sequence sent by the controller is shown in Fig. 6. All commands are composed of “Header” and “Data”, as shown in the above figure. The programming data sequence is from ICn, ICn-1, … to IC0 and for each IC, MSB bit is sent first. (Please also refer to sec. of “The structure of data packet”) Control Interface MBI6033 adopts the SPI-like interface (C KI/SDI). By SPI-like interface, MB I6033 samples the data (SDI) at the falling edge of the clock (CKI).The above waveform is the example of the SPI-like interface. CKI SDI 47th 46th 0th MSB of ICn LSB of ICn MSB of IC0 LSB of IC0 Header (not including timeout) Data
address the data, so that MBI6033 receives the data directly without latching data. connect both VDD and CA pins to regulated 5V or 3.3V. MBI6033 provides 16-bit S-PWM gray scale mode to 64 segments, so that the visual refresh rate can be increased. present PWM cycle and restart a new PWM cycle to show the new data immediately. The following is the equation for the duty cycle of output in 16-bit gray scale mode. Table 1. 16-bit gray mode scale output result
May 2014, V1.00 - 16 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Phase-inversed Output Clock MBI6033 enhances the capability of cascading MBI 6033 by phase-inversed output clock function. By phase-inversed output clock, the clock phase will be inversed from CKI to CKO to eliminate the accumulation of the pulse width deviation. This improves the signal integrit y of data transmission. The following chart illustrates the phase-inversed output clock results. The Structure of Data Packet MBI6033’s data packet contains three parts: 1. Prefix: The prefix is a symbol of “Silent-to-Reset”, i.e. a time period for MBI6033 to distinguish two data packets. 2. Header: The header defines the cascaded IC numbers and also contains a command to decide the data type. 3. Data: This is the data for each IC. It may be gray scale data, dot correction data, or configuration data. Structure of a data packet: Prefix MBI6033 identifies the data as a new packet after time-out. Then users can follow the “time-out” protocol (time-out duration: stop ttout + 1CKI + stop ttout ) to re-start packet decoding scheme. If both CKI and SDI are tied-low and stop for more than the setting of CKI time-out period, MBI6033 will start to check the valid command of the next data packet. The pref ix between two data packets helps MBI6033 identify the data packet correctly. The following timing diagram illustr ates the interval between two data packets in 16-bit gray scale mode. Time-out reset is to prevent ICs from misreading during the data transmission. The procedure is described below, The CKI should be tied-low and stop for more than time-out period -> one CKI pulse (SDI keep) -> CKI should be tied-low and stop for more than time-out period. Where the time-out period is at least than 21μs. Prefix Header Data
May 2014, V1.00 - 17 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Setting the Data Types by the Command MBI6033 provides three kinds of commands and input data types shown as the table below: Command H[7:0] Data Type 8’b11010101 Current gain mode 8’b11110011 Non-current gain mode 8’b11000001 Software reset Once MBI6033 receives the SDI=1 (1’b1), MBI6033 will start to check if the data is a valid command or not. If the 8-bit data is a valid command, the driver will latch the specific data according to the protocol. If the 8-bit data is not a valid command, MBI6033 will wait for another SDI=1 (1’b1) to check the validity of the next command. Time-Out Reset for Transmission Abort Time-out reset is to prevent ICs from misreading during the data transmission. The procedure is described below, The CKI should be tied-low and stop for more than time-out period -> one CKI pulse (SDI keep) -> CKI should be tied-low and stop for more than time-out period. Where the time-out period is at least than 21μs.
May 2014, V1.00 - 18 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Header Packet Format 48-bit header Bit Definition Value Function 47:40 H[7:0] 8’b11010101 Gray scale mode with current gain 8’b11110011 Gray scale mode without current gain 39:26 S[13:0] 14’b00000000000000 Wait counter data. Always send 14’b 00000000000000 25:12 L[13:0] N -1 N=Number of IC in series 14’bxxxx0000000000 ~ 14’bxxxx1111111111 Set the number of IC in series. The L[13:10] don’t care. Only the L[9:0] are effective. For example: if we have 3 IC’s in cascade, Length[13:0]=14’b0000 0000 0000 10 11:4 CF[7:0] 8’b00000000~8’b11111111 The configuration data. 8’b00000000 (default) 3:0 X1[3:0] 4’b0000 Reserved. Please keep “0000”
May 2014, V1.00 - 19 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Configuration Mode M S B L S B Bit 11 10 9 8 7 6 5 4 Default Value 0 000 00 0 0 Bit Definition Value Function
11 Reserved 1’b0 The value is suggested to be “0”
10:8 GCLK frequency 000(default) GCLK=frequency of internal oscillator, i.e. 10MHz (typ.). 3’b001 GCLK=frequency of internal oscillator divided by 2, i.e. 5MHz (typ.). 3’b 010 GCLK=frequency of internal oscillator divided by 3’b 011 GCLK=frequency of internal oscillator divided by 3’b 100 GCLK=frequency of internal oscillator divided by 16, i.e. 625KHz (typ.). 3’b 101 GCLK=frequency of internal oscillator divided by 3’b 110 GCLK=frequency of internal oscillator divided by 3’b 111 GCLK=frequency of internal oscillator divided by 7:6 Reserved 2’b00 Reserved. Please keep “00”
5 Output turn-on 1’b0
“1”, all constant-current outputs (OUTC3-OUTA0) are controlled by the GS PWM timing controller. “0”', all constant-current outputs are forced off and PWM counter is reset to “0”. Note: when this bit is from “0” to “1”, PWM counter will be reset. 4 Reserved 1’b0 Reserved. Please keep “0”
May 2014, V1.00 - 20 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Current Gain 24-bit current gain data Bit Definition Value Function 23:16 CGCN[7] 1’b0 Reserved. Please keep “0” CGCN[6:0] 7b’0000000~ 7b’1111111 The CGCN[6:0] are 7 bits current gain data of Nth driver for OUTC . 15:8 CGBN[7] 1’b0 Reserved. Please keep “0” CGBN[6:0] 7b’0000000~ 7b’1111111 The CGBN[6:0] are 7 bits current gain data of Nth driver for OUTB . 7:0 CGAN[7] 1’b0 Reserved. Please keep “0” CGAN[6:0] 7b’0000000~ 7b’1111111 The CGAN[6:0] are 7 bits current gain data of Nth driver for OUTA . 192-bit gray scale data Bit Definition Value Function 191:0 C3N[15:0]~ A0N[15:0] Each channel is 16-bit. 16’h0000 ~ 16’hffff 16-bit x 12 channels gray scale data of the Nth driver. The data of 3NOUTC is sent first. The gray scale data of the last IC is sent first, followed by the previous ICs, and the first IC’s gray scale data is sent in the end of the packet. Example of 16-bit Gray Scale with Current Gain Prefix H S L CF X1 CGC N CGB N CGAN C3N B3N A3N … C0N B0 N A0 N … CGC1 CGB 2 CGA 3 C3 1 B3 1 A3 1 … C01 B01 A01 48 bits Header Each driver 24 bits Each driver 4x3x16 bits Total N drivers data length Nx(24+4x3x16) bits
May 2014, V1.00 - 21 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Next packet
May 2014, V1.00 - 22 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Example of 16-bit Gray Scale without Current Gain Prefix H S L CF X1 C3 N B3 N A3 N … C0N B0N A0N … C31 B31 A3 1 … C01 B01 A01 48 bits Header Each driver 4x3x16 bits Total N drivers data length Nx4x3x16 bits Next packet
May 2014, V1.00 - 23 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Constant Current 1) MBI6033 performs excellent current skew: the maximum current variation between channels is less than ±3%, and that between ICs is less than ±6%. 2) In addition, in the saturation region, the output current keeps constant when the output voltage (VDS) is changed. This characteristic guarantees the LED show the same brightness regardless of the variations of LED forward voltages (VF). IOUT(mA) VDS(V) MBI6033 IOUT vs. VDS @ VDD=6~24V or VDD=VCA=5.0V IOUT (mA) VDS (V) MBI6033 IOUT vs. VDS @ VDD=VCA=3.3V
May 2014, V1.00 - 24 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Setting the Output Current The output current of each channel (IOUT) is set by an external resistor, Rext. The relationship between IOUT and Rext is shown in the following figure. The output current of each channel (I OUT) is set by an external resistor, R ext. When output channels are turned on, VREXT is around 0.61V. The relationship between IOUT and Rext is shown in the following figure. Also, the output current can be calculated from the equation: IOUTA=(VREXT/Rext)x23xCGA/127 IOUTB=(VREXT/Rext)x23xCGB/127 IOUTC=(VREXT/Rext)x23xCGC/127 MBI6033 R ext vs. IOUT 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 Rext(Ω) I OUT (mA)
May 2014, V1.00 - 25 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 02 0 40 60 80 100 Power Dissipation (W) Ambient Temperature (°C) MBI6033 Maximum Power Dissipation at Various Ambient Temperature GP Type: Rth=70.9°C/W GFN Type: Rth=39.15°C/W GTS Type: Rth=58.45°C/W Safe Operation Area Package Power Dissipation (PD) The maximum power dissipation, PD(max)=(Tj,max–Ta)/Rth(j-a), decreases as the ambient temperature increases. The power dissipation (PD) is calculated by the equation: PD=(VDDxIDD)+(IOUTAxVDSA)+ (IOUTBxVDSB)+ (IOUTCxVDSC) Please refer to the following figure to design within the safe operation area.
May 2014, V1.00 - 26 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Load Supply Voltage (VLED) The design of V LED should fulfill two targets: 1. Less power consumption and heat 2. Sufficiently headroom for the LED and driver IC to operate in the constant-current region. From the figure below, V DS=VLED–VF, which VLED is the supply voltage of LED. P D (act) will be greater than P D (max), if VDS drops too much voltage on the driver. In this case, it is recommended to use the lowest possible supply voltage or to set an external resistor to reduce the by VDROP. VDS=(VLED–VF)–VDROP Please refer to the following figure for the application of the resister. Switching Noise Reduction The output ports of LED drivers are fr equently switching in typical applications. This behavior usually causes switching noise due to the parasitic inductance on PCB. To eliminate switching noise, please refer to “Application Note for 8-bit and 16-bit LED Drivers-Overshoot”. MBI6033 VF VDS VDrop Supply Voltage VLED
May 2014, V1.00 - 27 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Soldering Process of “Pb-free & Green” Package Plating* Macroblock has defined "Pb-Free & Green" to mean semicond uctor products that are compatible with the current RoHS requirements and selected 100% pure tin (Sn) to pr ovide forward and backward compatibility with both the current industry-standard SnPb-based soldering processes and higher-temperature Pb-free processes. Pure tin is widely accepted by customers and suppliers of electronic devices in Europe, Asia and the US as the lead-free surface finish of choice to replace tin-lead. Also, it is ba ckward compatible to reflow processes which adopt tin/lead (SnPb) solder paste. Please refer to JEDEC J-STD-020C for temperature setting. However, in the whole Pb-free soldering processes and materials, 100% pure tin (Sn) will all require from 245 oC to 260oC for proper soldering on boards, referring to JEDEC J-STD-020C as shown below. Package Thickness Volume mm3 <350 Volume mm3 350-2000 Volume mm3 ≧2000 <1.6mm 260 +0 oC 260 +0 oC 260 +0 oC 1.6mm – 2.5mm 260 +0 oC 250 +0 oC 245 +0 oC ≧2.5mm 250 +0 oC 245 +0 oC 245 +0 oC *For details, please refer to Macroblock’s “Policy on Pb-free & Green Package”. 0 50 100 150 200 250 300 100 150 200 250 300 Temperature (℃) Time (sec) 217℃ 240℃ 255℃ Average ramp-up rate= 3.3℃/s Average ramp-up rate= 0.7℃/s 100s max 30s max Ramp-down 6℃/s (max) Peak Temperature 245℃~260℃< 10s ----Maximum peak temperature Recommended reflow profile 260℃+0℃ -5℃ 245℃±5℃ Acc.J-STD-020C Average ramp-up rate = 0.4℃/s JEDEC J-STD-020C
May 2014, V1.00 - 28 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Package Outline MBI6033GP Outline Drawing
May 2014, V1.00 - 29 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Unit: mm A A1 MIN NOM MAX MIN NOM MAX MIN NOM MAX MAX MAX MIN NOM MAX MIN NOM MAX MIN NOM MAX MIN MAX MIN MAX DEE 1 A 2 b θD1 E2 e GAUGE PLANE SEATING PLANE MBI6033GTS Outline Drawing
May 2014, V1.00 - 30 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Note 1: The unit for the outline drawing is mm. Note 2: Please use the maximum dimensions for the thermal pad layout. To avoid the short circuit risk, the vias or circuit traces shall not pass through the maximum area of thermal pad. MBI6033GFN Outline Drawing (Max) (Max)
May 2014, V1.00 - 31 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Product Top Mark Information Product Revision History Datasheet version Device version code V1.00 A Product Ordering Information Product Ordering Number* RoHS-Compliant Package Type Weight (g) MBI6033GP-A SSOP24L-150-0.64 0.11 MBI6033GTS-A TSSOP24-173 -0.65 0.0967 MBI6033GFN-A QFN24L-4*4-0.5 0.0379 *Please place your order with the “product ordering number” information on your purchase order (PO). Part number ID number Manufacture Code Device Version Code The second row of printing MBIXXXX ○ ○ Product No. Package Code Process Code The first row of printing MBIXXXX ○ ○○ Or Digits
May 2014, V1.00 - 32 - MBI6033 PWM-Embedded 3x4-Channel Constant-Current Sink Driver for LED Strips Disclaimer Macroblock reserves the right to make changes, corrections, modifications, and improvements to their products and documents or discontinue any product or service. Customers are advised to consult their sales representative for the latest product information before ordering. All products are sold subject to the terms and conditions supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. Macroblock’s products are not designed to be used as components in device intended to support or sustain life or in military applications. Use of Macroblock’s products in components intended for surgical implant into the body, or other applications in which failure of Macroblock’s products could create a situation where personal death or injury may occur, is not authorized without the express written approval of the Managing Director of Macroblock. Macroblock will not be held liable for any damages or claims resulting from the use of its products in medical and military applications. Related technologies applied to the product are protected by patents. All text, images, logos and information contained on this document is the intellectual property of Macroblock. Unauthorized reproduction, duplication, extraction, use or disclosure of the above mentioned intellectual property will be deemed as infringement.