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PDF TB62D786FTG Data sheet ( Hoja de datos )
| Número de pieza | TB62D786FTG | |
| Descripción | 9-channel constant current LED driver | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TB62D786FTG
TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB62D786FTG
9-channel constant current LED driver with 1wire
The TB62D786FTG is a constant current driver designed for LED and
LED illumination.
The TB62D786FTG incorporates 9-channel of 7-bit PWM dimming
controllers and constant current drivers. 9 constant current drivers are
divided into three blocks, each consisting of three drivers, and the
output current of each can be independently adjusted by the relevant
external resistor.
The TB62D786FTG is controlled using the only DATA-IN input signal.
(with operate high speed data transfer)
The TB62D786FTG can be set address with ID pin.
(Up to 64 address)
The TB62D786FTG include regulator and the regulator convert a power
supply of LED to a power supply of IC circuit.
Additionally, data can be transferred at high speed with Bi-CMOS process.
TB62D786FTG
P-VQFN24-0404-0.50-001
Weight: 0.037g (typ.)
Feature
• Power supply voltage : VL = 7.0 to 28V (The case used only by a power supply of LED)
Vcc = 5.0V±10% (The case that the power supply of LED and that of this IC separately. )
• Output drive capability:
80mA (max) × 9 channels
• Constant current output range: 5 to 40 mA
• Voltage applied to constant current output pins: 0.4 V(min) @IOUT=5 to 40 mA
• Designed for common-anode LEDs.
• The input interface is controlled by DATA-IN (1-wire)
• Thermal shut down (TSD) included.
• Input and output of logic circuit: 5V CMOS Interface
(Schmitt trigger input)
• Maximum output voltage:
28 V
• PWM control circuit included:
7bit PWM
• Driver identification:
Up to 64 drivers can be controlled individually
• Operating temperature range:
Topr = -40 to 85°C
• Package:
P-VQFN24-0404-0.50-001
• Constant current accuracy
Output voltage
Current accuracy
between channels
0.5 V
±3.0%
Current accuracy
between ICs
±6.0%
Output current
15mA
This product is very delicate because of elements of MOS structure. In handling, please take care of measures of static
electricity, such as use of a ground band or an electric conduction mat, removal of static electricity by an ionizer, and
management of temperature and humidity.
©2016 TOSHIBA Corporation
1
2016-05-09
1 page  
TB62D786FTG
Programming the TB62D786FTG
This product is controlled with 1-wire data signal. As compared with 2-wire data signal synchronous with the clock signal
in conventional products, this product assigns each data state to the transition state (H to L or L to H) as shown below.
For setting data, select from (2) normal programming mode or (3) special mode at (1) data setting format.
If all outputs are controlled, (3) special mode is recommended.
(1) Data setting format
Each command setting input to DATA-IN is set with the following format.
This product recognizes the command frequency (1-bit data width) by taking in the start command (the start condition
of data input).
Start command : 1010101010101010 (original binary: 11111111)
Since this product continues to recognize the signal interval which recognizes at the start command until the period
command, input the pulse width in 1 bit within 50% duty so that the period is not collapsed until completion of the period
command.
(Refer to Operating Ranges.)
Period command : 1001010101010110 (original binary: 10000001)
After the completion of the period command input, make sure to set the interval ("L") more than 10 μs until next start
command input.
<Input format>
Interval more
than10µs
Ex.) Basic input mode
DATA-IN
Period
command
[10000001]
L input
Start
command
[11111111]
Slave
address
Sub address
Data byte
Period
command
[10000001]
L input
Start
command
[11111111]
Example 1) Start command setting [original binary 11111111]
HLHLHLHLHL
“1” “1” “1” “1” “1”
Example 2) Period command setting [original binary 10000001]
HL
“1”
HL
“1”
HL
“1”
DATA-IN
HL
“1”
LH
“0”
LH
“0”
LH
“0”
LH
“0”
LH
“0”
LH
“0”
HL
“1”
5 2016-05-09
5 Page 
e) In case the period command mistakes.
TB62D786FTG
Transferring data B Start output
Internal PWM clock
Pattern 5
Start Data
127
0 127 0
Start Data B Period
Input invalid term
Data B output
Outputting data A does not start at the rising edge of zero internal clock which is just after the data A input.
Outputting data B starts at the rising edge of zero internal PWM clock which is just after the data B input.
(7) Example of data input to the different ID.
a) In case the data B is input to slave (= 02h) just after the data A is input to slave (= 00h).
Transferring data A and data B. Start output
Internal PWM clock
Pattern 6 Start Slave=00h, Data A Period Start Slave=02h, Data B Period
Slave=00h output
Slave=02h output
127
0
Data A output
Data B output
Both data A and data B are output at the rising edge of zero internal PWM clock which is just after the data A and the
data B inputs.
Pay attention that the IC does not operate according to the configuration while following patterns (patterns 7 and 8) are
input.
b) In case period command after inputting data A to the slave (=00h) is missed or omitted, or in case period
command after inputting data B to the slave (=02h) is missed or omitted.
Transferring data A Start output
Internal PWM clock
Pattern 7
Start Slave=00h, Data A Start Slave=02h, Data B
Slave=00h output
Slave=02h output
127 0
Data A output
Data A is output. Data B is not output.
c) In case start command is input after data B of pattern 7 is input.
Internal PWM clock
Pattern 8
Start Slave=00h, Data A Start Slave=02h, Data B Start
Slave=00h output
Slave=02h output
Data A is output. Data B is not output.
Transferring data A Start output
127 0
Data A output
11 2016-05-09
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| PDF Descargar | [ Datasheet TB62D786FTG.PDF ] | |
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