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PDF TC62D748CFG Data sheet ( Hoja de datos )

Número de pieza TC62D748CFG
Descripción 16-Output Constant Current LED Driver
Fabricantes Toshiba 
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No Preview Available ! TC62D748CFG Hoja de datos, Descripción, Manual

TC62D748CFG
TOSHIBA CDMOS Integrated Circuit Silicon Monolithic
TC62D748CFG
16-Output Constant Current LED Driver
The TC62D748CFG is a constant-current driver for LED and
LED display lighting applications.
The output current from each of the 16 outputs is
programmable via a single external resistor.
The TC62D748CFG contains a 16-channel shift register, a
16-channel latch, a 16-channel AND gate and a 16-channel
constant-current output.
Fabricated with a CMOS process, the TC62D748CFG allows
high-speed data transfer.
It operates with a 3.3- or 5-V power supply.
SSOP24-P-300-1.00B
Weight: 0.29 g (Typ.)
Features
Supply voltages
: VDD = 3.0 V to 5.0 V
16-output built-in
Output current setup range
: IOUT = 1.5 to 90 mA
Constant current output accuracy (@ REXT = 1.2 kΩ, VOUT = 1.0 V, VDD = 3.3 V, 5.0 V)
: S rankbetween outputs ± 1.5 % (max)
: S rankbetween devices: ± 1.5 % (max)
: N rankbetween outputs ± 2.5 % (max)
: N rankbetween devices: ± 2.5 % (max)
Output voltage
: VOUT = 17 V (max)
High-speed output switching
: twOE(L) = 25 ns (min), tor = 30ns (typ.), tof = 10ns (typ.)
There is TC62D749 as an output switching high-speed version of this product.
I/O interface
: CMOS interfaces (Schmitt trigger input)
Data transfer frequency
: fSCK = 25 MHz (max)
Operation temperature range
: Topr = −40 to 85 °C
Power-on-reset function built-in. (When the power supply is turned on, internal data is reset)
Package
: SSOP24-P-300-1.00B
For detailed part naming conventions, contact your local Toshiba sales representative or distributor.
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TC62D748CFG pdf
Truth Table
TC62D748CFG
SCK
SLAT
OE
SIN
OUT0 OUT7 OUT15 (Note1)
SOUT
H
L
H
(Note2)
(Note2)
L
L
L
L
H
Dn
Dn + 1
Dn + 2
Dn + 3
Dn + 3
Dn … Dn 7 … Dn 15
No Change
Dn + 2 … Dn 5 … Dn 13
Dn + 2 … Dn 5 … Dn 13
OFF
Dn 15
Dn 14
Dn 13
Dn 13
Dn 13
Note1: When OUT0 to OUT15 output pins are set to "H" the respective output will be ON and when set to
"L" the respective output will be OFF.
Note2: “-“ is irrelevant to the truth table.
Timing Diagram
SCK
n = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
SIN
SLAT
OE
OUT0
OUT1
OUT2
H
L
H
L
H
L
H
L
ON
OFF
ON
OFF
ON
OFF
OUT15
SOUT
ON
OFF
H
L
The latch circuit is a leveled-latch circuit. Please exercise precaution as it is not triggered-latch circuit.
Keep the SLAT pin is set to “L” to enable the latch circuit to hold data. In addition, when the SLAT
pin is set to “H” the latch circuit does not hold data. The data will instead pass onto output.
When the OE pin is set to “L” the OUT0 to OUT15 output pins will go ON and OFF in response to
the data. In addition, when the OE pin is set to “H” all the output pins will be forced OFF regardless of
the data.
This product can use 3.3V and 5.0V power supply, but power supply and input (SCK/SIN/ SLAT / OE )
must use same voltage.
5 2011-12-14

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TC62D748CFG arduino
Test Circuit4: Power supply current
SCK
F.G SIN
SLAT
OE
VDD
OUT0
OUT7
VIH = VDD
VIL = 0 V
tr = tf = 10 ns
(10 to 90%)
REXT
GND
OUT15
SOUT
TC62D748CFG
A
Test Circuit5: Constant current output / Output OFF leak current / Constant current error
Test Circuit5: Constant current output power supply voltage regulation
Constant current output output voltage regulation
SCK
VDD
OUT0
A
F.G
SIN
SLAT
OE
OUT7
A
VIH = VDD
VIL = 0 V
tr = tf = 10 ns
(10 to 90%)
REXT
GND
OUT15
SOUT
A
Test Circuit6: Switching Characteristics
SCK
F.G SIN
SLAT
OE
VDD
OUT0
OUT7
VIH = VDD
VIL = 0 V
tr = tf = 10 ns
(10 to 90%)
REXT
GND
OUT15
SOUT
RL = 300 Ω
CL
RL
CL
RL
CL = 10.5 pF
11 2011-12-14

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