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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 Supply current at operation (Iout = 20 mA/DC) Supply current at standby * * For anode common LED Package : SON10-P-0303-0.50 height : 0.8 mm(Typ.) : 700 A(MAX) : 1 A(MAX) : VIN = 2.7 to 5.5 V : 5 to 150 mA
Company Headquarters 3 Northway Lane North Latham, New York 12110 Toll Free: 800.984.5337 Fax: 518.785.4725
Web: www.marktechopto.com | Email: info@marktechopto.com
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)
This datasheet is tentative, the values and contents are subject to change without any notice.
TCA62723FMG
TENTATIVE Pin Layout (Top view)
SHDN CTL0 CTL1 CTL2 GND
1 2 3 4 5
10 9 8 7 6
VDD OUT0 OUT1 OUT2 REXT
Terminal Description
Pin No.
1
Pin Name
SHDN
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. 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. GND terminal 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. Output terminal 2.7 V to 5.5 V supply voltage terminal
2
CTL0
3
CTL1
4 5 6 7 8 9 10
CTL2 GND REXT OUT2 OUT1 OUT0 VIN
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 GND
I-REG
REXT
Application Circuit Example
VIN 3.6V VOUT 5.0V
TCA62723FMG
SHDN CTL0 CTL1 CTL2 GND VIN OUT 0 OUT 1 OUT 2 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) IOUT (mA) = x 460 REXT (k)
120 100 REXT (k) 80 60 40 20 0 5 25 45
IOUT vs. REXT
Ta = 25C VDS = 1.0V
65 85 IOUT (mA)
105
125
145
Output Voltage - Output Current
180 160 140 120 IOUT (mA) 100 80 60 40 20 0 0.0 0.5 1.0 1.5 V DS (V) 2.0 2.5 3.0
REXT=110k REXT=11k
V DS vs IOUT
REXT=3.6k
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 mA. = 1.17x (VADJ=0V) x460
R1 + REXT R1xREXT
3. A minimum current is defined as mA. =1.17x 1 REXT
(VADJ=1.1V) x460
4. IOUT can be set according to the next expression. IOUT = VADJx - 1.17 +
(Example) Current Dimming from IOUT=120mA to 60mA (Reference data)
VIN 3.6V VOUT 5.0V VADJ 0 to 1.17V
TCA62723FMG
SHDN CTL0 CTL1 CTL2 GND VIN OUT 0 OUT 1 OUT 2 REXT REXT R1
Current Dimming Control (Reference data) R1=24k, REXT=9.1k 140 120 IOUT (mA) 100 80 60 40 20 0 0 0.1 0.2 0.3 0.4 0.5 0.6 VADJ (V) 0.7 0.8 0.9 1 1.1
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)xREXT RCONT RCONT
1.17V+ IOUT=
VCONT=DxVPWM RCONT=R1+R2
D: PWM Duty (%)
Please define the cutoff frequency to the next expression. (fC fPWM) 1 fC = 2xxRxC R= R1x R2 R1 + R2
VIN 3.6V VOUT 5.0V VPWM 0 2.6V
TCA62723FMG
SHDN CTL0 CTL1 CTL2 GND VIN OUT 0 OUT 1 OUT 2 REXT REXT R1 R2 C2
Current Dimming Control (Reference data) R1=9.1k, R2=8.2k, REXT=8.2k, C=0.22uF 120 100 IOUT (mA) 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)
fPWM=1kHz
TCA62723FMG
TENTATIVE Maximum Ratings (Ta = 25C)
Characteristic Supply voltage Output voltage Input voltage Power dissipation Symbol VIN VOUT VIN PD Rth (j-a) Topr Tstg Tj Ratings -0.3 ~ +6.0 -0.3 ~ +6.0 -0.3 ~ VIN+0.3 *Note1 0.36 (free air) 0.79 (on PCB) *Note2 340 (free air) 158 (on PCB) -40 ~ +85 -55 ~ +150 150 Unit V V mA W
Thermal resistance Operating temperature Storage temperature Maximum junction temperature
C/W C C C
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 25C when the device is mounted on a PCB.
Recommended Operating Condition
Characteristic Supply voltage Constant current output REXT CTL terminal minimum pulse width Symbol VDD IOUT REXT tCTL Condition OUT0 to OUT2 REXT=11k Min 2.7 5 3.6 25 Typ. 3.6 Max 5.5 150 110 Unit V mA/ch k mA
Electrical Characteristics (unless otherwise specified, VIN = 3.6 V, Ta = 25C)
Characteristic Supply voltage Supply current (IC operation) Supply current (IC standby) Input voltage Input current Gain REXT terminal voltage Output leakage current Constant current accuracy between bits Time from SHDN release to start of operation High level Low level Symbol VIN IIN (On) IIN (Off) VIH VIL IIH IIL GAIN VREXT IOZ dIOUT tRE Condition REXT = 27.6k SHDN = L CTL0,CTL1,CTL2,SHDN CTL0,CTL1,CTL2,SHDN CTL0,CTL1,CTL2,SHDN CTL0,CTL1,CTL2,SHDN IOUT/IREXT, REXT = 11 k VIN=3.6 V, REXT = 11 k SHDN = "L", VOUT = 5.5 V VIN = 3.6 V, REXT = 11 k Min 2.7 0.7VIN -0.15 -1.0 -1.0 380 1.1 Typ 3.6 460 1.17 1 2 Max 5.5 700 1.0 VIN+0.15V 0.3VIN 1.0 1.0 560 1.24 0.1 7.5 5 Unit V A A V A A/A V A % ms
This datasheet is tentative, the values and contents are subject to change without any notice.
(Ver01)2005-07-15(Page 8 of 12)
TCA62723FMG
TENTATIVE Switching characteristic (unless otherwise specified, VIN = 3.6 V, Ta = 25C)
Characteristic Propagation delay Rise time Symbol tpLH tpHL tR Condition REXT 11k REXT 11k REXT 11k 20, CL 10.5pF Min Typ 50 1 50 500 MAX Unit ns s ns ns
tF REXT 11k Fall time Note: Ta 25C, VDD VIH 2.7V or 5.5V, VOUT=2.0V, VIL 0V, RL
Test Circuit
VIN 2.7V to 5.5
VOUT 2.0V
CL=10.5pF
CL=10.5pF
CL=10.5pF
TCA62723FMG
VIL,VIH SHDN CTL0 CTL1 CTL2 GND VIN OUT 0 OUT 1 OUT 2 REXT REXT=11k RL=20 RL=20 RL=20
Logic wave form generator
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)

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