TCA62723FMG TENTATIVE TOSHIBA CMOS Integrated Circuits Silicon Monolithic TCA62723FMG Three-Channel Constant-Current LED Driver The TCA62723FMG is an optimal constant-current LED driver for RGB pixel LEDs. Moreover, it is not necessary to connect external resistance to an output in almost all cases. The forward current of the LED is set up using the external resistor. Weight: 0.018 g (typ.) Features • Power supply voltage range • Constant current range • Low consumption current : VIN = 2.7 to 5.5 V : 5 to 150 mA Supply current at operation (Iout = 20 mA/DC) : 700 µA(MAX) Supply current at standby : 1 µA(MAX) • For anode common LED • Package : SON10-P-0303-0.50 height : 0.8 mm(Typ.) Company Headquarters 3 Northway Lane North Latham, New York 12110 Toll Free: 800.984.5337 Fax: 518.785.4725 Web: www.marktechopto.com | Email: [email protected] This datasheet is tentative, the values and contents are subject to change without any notice. California Sales Office: 950 South Coast Drive, Suite 265 Costa Mesa, California 92626 Toll Free: 800.984.5337 Fax: 714.850.9314 (Ver01)2005-07-15(Page 2 of 12) TCA62723FMG TENTATIVE Pin Layout (Top view) VDD SHDN 1 10 CTL0 2 9 OUT0 CTL1 3 8 OUT1 CTL2 4 7 OUT2 GND 5 6 REXT Terminal Description Pin No. Pin Name 1 SHDN 2 CTL0 3 CTL1 4 CTL2 Input pin for OUT3 ON/OFF control. When the data is “H, OUT3 is turned on; When the data is “L”, OUT3 is turned off. 5 GND GND terminal 6 REXT This is an output current setting resistor connect terminal. The output current does not flow when this terminal is opened. Excessive output current will destroy the IC if this terminal is connected to GND. 7 OUT2 8 OUT1 9 OUT0 10 VIN Function Input pin for IC ON/OFF control. When the data is “H”, the IC operates; When the data is “L”, power-saving mode applies. Input pin for OUT0 ON/OFF control. When the data is “H, OUT0 is turned on; When the data is “L”, OUT0 is turned off. Input pin for OUT1 ON/OFF control. When the data is “H, OUT1 is turned on; When the data is “L”, OUT1 is turned off. Output terminal 2.7 V to 5.5 V supply voltage terminal This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 3 of 12) TCA62723FMG TENTATIVE Block Diagram VIN CTL0 OUT0 CTL1 OUT1 CTL2 OUT2 SHDN REXT I-REG GND Application Circuit Example VIN 3.6V VOUT 5.0V TCA62723FMG SHDN VIN CTL0 OUT 0 CTL1 OUT 1 CTL2 OUT 2 GND REXT REXT This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 4 of 12) TCA62723FMG TENTATIVE Method of setting IOUT The current of the terminal OUT0 to 2 is set by resistance connected with the terminal REXT. IOUT can be set according to the next expression. 1.17 (V) × 460 IOUT (mA) = REXT (kΩ) IOUT vs. REXT 120 Ta = 25°C VDS = 1.0V R EXT (kΩ) 100 80 60 40 20 0 5 25 45 65 85 IOUT (mA) 105 125 145 Output Voltage – Output Current V DS vs IOUT 180 REXT=3.6kΩ 160 140 IOUT (mA) 120 100 80 REXT=11kΩ 60 40 20 REXT=110kΩ 0 0.0 0.5 1.0 1.5 V DS (V) 2.0 2.5 3.0 Note: These application examples are provided for reference only. Thorough evaluation and testing should be implemented when designing your application's mass production design. This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 5 of 12) TCA62723FMG TENTATIVE Current Dimming Control 1) Input analog voltage to REXT terminal 1. Precondition Please set the range of the analog voltage input by 0 to 1.17V. 2. The maximum current is defined as αmA. R1 + REXT α = 1.17× ×460 R1×REXT 3. A minimum current is defined as βmA. β =1.17× (VADJ=0V) 1 REXT (VADJ=1.1V) ×460 4. IOUT can be set according to the next expression. IOUT = VADJ× β-α +α 1.17 (Example) Current Dimming from IOUT=120mA to 60mA (Reference data) VIN 3.6V VADJ 0 to 1.17V VOUT 5.0V TCA62723FMG SHDN VIN CTL0 OUT 0 CTL1 OUT 1 CTL2 OUT 2 GND REXT R1 REXT Current Dimming Control (Reference data) R1=24kΩ, REXT=9.1kΩ 140 IOUT (mA) 120 100 80 60 40 20 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 VADJ (V) Note: These application examples are provided for reference only. Thorough evaluation and testing should be implemented when designing your application's mass production design. This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 6 of 12) TCA62723FMG TENTATIVE 2) Input PWM signal to REXT terminal IOUT can be set according to the next expression. (1.17V – VCONT)×REXT 1.17V+ RCONT IOUT= RCONT VCONT=D×VPWM D: PWM Duty (%) RCONT=R1+R2 Please define the cutoff frequency to the next expression. (fC ≤ fPWM) 1 fC = 2××R×C R1× R2 R= R1 + R2 VIN 3.6V VPWM 0∼2.6V VOUT 5.0V TCA62723FMG VIN SHDN CTL0 OUT 0 CTL1 OUT 1 CTL2 OUT 2 GND REXT R2 C2 R1 REXT Current Dimming Control (Reference data) R1=9.1kΩ, R2=8.2kΩ, REXT=8.2kΩ, C=0.22uF 120 IOUT (mA) 100 fPWM=1kHz 80 60 40 20 0 0 10 20 30 40 50 60 70 80 90 PW M Duty (%) Note: These application examples are provided for reference only. Thorough evaluation and testing should be implemented when designing your application's mass production design. This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 7 of 12) TCA62723FMG TENTATIVE Maximum Ratings (Ta = 25°C) Characteristic Supply voltage Output voltage Input voltage Symbol Ratings Unit VIN VOUT VIN −0.3 ~ +6.0 −0.3 ~ +6.0 −0.3 ~ VIN+0.3 *Note1 0.36 (free air) V V mA PD Power dissipation Thermal resistance W 0.79 (on PCB) *Note2 340 (free air) Rth (j-a) °C/W 158 (on PCB) Operating temperature Topr −40 ~ +85 °C Storage temperature Tstg −55 ~ +150 °C Tj 150 °C Maximum junction temperature Note1 : However, do not exceed 6V. Note: Subtract 3.8 mW / degree from the maximum rating value about a degree if the operation temperature exceeds 25°C when the device is mounted on a PCB. Recommended Operating Condition Characteristic Symbol Condition Min Typ. Max Unit Supply voltage VDD - 2.7 3.6 5.5 V Constant current output IOUT OUT0 to OUT2 5 - 150 mA/ch REXT REXT - 3.6 - 110 kΩ CTL terminal minimum pulse width tCTL REXT=11kΩ 25 - - mA Electrical Characteristics (unless otherwise specified, VIN = 3.6 V, Ta = 25°C) Characteristic Symbol Condition Min Typ Max Unit VIN - 2.7 3.6 5.5 V Supply current (IC operation) IIN (On) REXT = 27.6kΩ - - 700 µA Supply current (IC standby) µA Supply voltage IIN (Off) SHDN = L - - 1.0 High level VIH CTL0,CTL1,CTL2,SHDN 0.7VIN - VIN+0.15V Low level VIL CTL0,CTL1,CTL2,SHDN −0.15 - 0.3VIN Gain REXT terminal voltage IIH IIL GAIN VREXT CTL0,CTL1,CTL2,SHDN CTL0,CTL1,CTL2,SHDN IOUT/IREXT, REXT = 11 kΩ VIN=3.6 V, REXT = 11 kΩ Output leakage current IOZ SHDN = “L”, VOUT = 5.5 V −1.0 −1.0 380 1.1 - 460 1.17 - 1.0 1.0 560 1.24 0.1 dIOUT VIN = 3.6 V, REXT = 11 kΩ - ±1 ±7.5 % tRE - - 2 5 ms Input voltage Input current Constant current accuracy between bits Time from SHDN release to start of operation This datasheet is tentative, the values and contents are subject to change without any notice. V µA A/A V µA (Ver01)2005-07-15(Page 8 of 12) TCA62723FMG TENTATIVE Switching characteristic (unless otherwise specified, VIN = 3.6 V, Ta = 25°C) Characteristic Propagation delay Symbol tpLH Rise time tpHL Condition REXT＝11kΩ REXT＝11kΩ Min − − Typ 50 1 MAX − − Unit ns µs tR REXT＝11kΩ − 50 − ns 500 − ns tF REXT＝11kΩ − Fall time Note: Ta＝25°C, VDD＝VIH＝2.7V or 5.5V, VOUT=2.0V, VIL＝0V, RL＝20Ω, CL＝10.5pF Test Circuit VOUT 2.0V VIN 2.7V to 5.5Ｖ CL=10.5pF CL=10.5pF CL=10.5pF TCA62723FMG VIL,VIH Logic wave form generator SHDN VIN CTL0 OUT 0 CTL1 OUT 1 CTL2 OUT 2 GND REXT RL=20Ω RL=20Ω RL=20Ω REXT=11kΩ This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 9 of 12) TCA62723FMG TENTATIVE Package Dimensions Weight: 0.016 g (typ.) This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 10 of 12) TCA62723FMG TENTATIVE Notes on Contents Block Diagrams Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for explanatory purposes. Maximum Ratings The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be exceeded during operation, even for an instant. If any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered and the reliability and lifetime of the device can no longer be guaranteed. Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in other equipment. Applications using the device should be designed so that no maximum rating will ever be exceeded under any operating conditions. Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in this document. Application Examples The application examples provided in this data sheet are provided for reference only. Thorough evaluation and testing should be implemented when designing your application's mass production design. In providing these application examples, Toshiba does not grant the use of any industrial property rights. Handling of the IC Ensure that the product is installed correctly to prevent breakdown, damage and/or degradation in the product or equipment. Short circuiting between output and line to ground faults may result in damage to the IC. Please exercise precaution in designing the output line, power line and GND line so as to prevent such damage. Be careful to insert the IC correctly. Inserting the IC the wrong way (e.g., wrong direction) may result in damage to the IC. Please exercise precaution in handling external components as shorting and opening such components may cause an overcurrent, which in turn may result in power overcurrent and/or in damage to the IC. This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 11 of 12) TCA62723FMG TENTATIVE This datasheet is tentative, the values and contents are subject to change without any notice. (Ver01)2005-07-15(Page 12 of 12)