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PDF TCA62746AFNG Data sheet ( Hoja de datos )
| Número de pieza | TCA62746AFNG | |
| Descripción | 16-Output Constant Current LED Driver | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TCA62746AFG/AFNG
www.DataSheet4U.com
TOSHIBA CMOS Integrated Circuit Silicon Monolithic
TCA62746AFG,TCA62746AFNG
16-Output Constant Current LED Driver with Output Open/Short Detection
The TCA62746 series are LED drivers with sink type constant
circuit output, making them ideal for controlling LED modules
and displays.
The current value of the 16-output is configurable using one
external resistor.
In addition, these drivers are equipped with a function for
detecting the output voltage when the output load LEDs open or
short, and which then outputs the result as serial data.
These drivers consist of a 16-constant current output block, a
16-bit shift register, a 16-bit latch and a 16-bit AND-gate.
The suffix (G) appended to the part number represents a Lead
(Pb)-Free product.
TCA62746AFG
TCA62746AFNG
Features
• 16-output built-in
• Output open detection (OOD) function
: When in detection mode, outputs the detection results via
SOUT.
• Output short detection (OSD) function
: When in detection mode, outputs the detection results via
SOUT.
Weight
SSOP24-P-300-1.00B : 0.32 g (typ.)
• Output current setting range
: 2 to 50 mA × 16-constant current output
SSOP24-P-300-0.65A : 0.14 g (typ.)
• Current accuracy (@ REXT = 1.56 kΩ, VO = 1.0 V, VDD = 5.0 V)
: Between outputs: ± 1% (typ.)
Between devices: ± 3% (typ.)
• Control data format: serial-in, parallel-out
• I/O logic: TTL level (Schmitt trigger input)
• Data transfer frequency: fMAX = 25 MHz (max)
• Power supply voltage: VDD = 4.5 to 5.5 V
• Operation temperature range: Topr = −40 to 85°C
• Constant current output voltage: VO = 17V (max)
• Output delay circuit built-in: Internal data reset circuit for power-on resetting (POR)
• Backward compatible to TB62706B and TB62726A series drivers
• Package: FG type: SSOP24-P-300-1.00B
FNG type: SSOP24-P-300-0.65A
Caution
This device is sensitive to electrostatic discharge. Please handle with care.
The terminals which are marginal to electro static discharge are shown in the following table.
(Please refer to page 22 for details.)
ESD test MM Model Marginal terminals (MM Model Internal Standard ±200V)
5,6,7,8,9,10,11,12,13,14,15,16,19,20
* ESD test HBM Model Internal Standard (±2000V) is OK
1 2007-05-22
1 page  
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Pin Functions
Pin No
1
2
3
Pin Name
GND
SIN
SCK
4 SLAT
5 OUT0
6 OUT1
7 OUT2
8 OUT3
9 OUT4
10 OUT5
11 OUT6
12 OUT7
13 OUT8
14 OUT9
15 OUT10
16 OUT11
17 OUT12
18 OUT13
19 OUT14
20 OUT15
21 OE
22 SOUT
23 REXT
24 VDD
TCA62746AFG/AFNG
I/O Function
⎯ The ground pin.
I The serial data input pin.
I
The serial data transfer clock input pin.
Also used for OOD/OSD mode settings.
The latch signal input pin.
I Data is saved at L level.
Also used for OOD/OSD mode settings.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
O A sink type constant current output pin.
The constant current output enable signal input pin.
I During the “H” level, the output will be forced off.
Also used for OOD/OSD mode settings.
O
The serial data output pin.
This pin outputs the OD/OSD detection result data.
⎯ The constant current value setting resistor connection pin.
⎯ The power supply input pin.
5 2007-05-22
5 Page 
www.DataSheet4U.com
Test Circuit4: Power supply current
SCK
SIN
F.G SLAT
OE
VDD
OUT0
OUT7
VIH = VDD
VIL = 0 V
tr = tf = 10 ns
(10~90%)
REXT
GND
OUT15
SOUT
TCA62746AFG/AFNG
A
Test Circuit5: Constant current output / Output OFF leak current / Constant current error
Test Circuit5: Constant current power supply voltage regulation / Constant current output voltage regulation
SCK
VDD
OUT0
A
SIN
F.G
SLAT
OE
OUT7
A
VIH = VDD
VIL = 0 V
tr = tf = 10 ns
(10~90%)
REXT
GND
OUT15
SOUT
A
Test Circuit6: OOD voltage / OSD voltage
SCK
F.G
SIN
SLAT
OE
VIH = VDD
VIL = 0 V
tr = tf = 10 ns
(10~90%)
REXT
VDD
GND
OUT0
OUT7
OUT15
SOUT
V
V
V
All output terminals is set to turning on, only one output terminal is connected with the VO2 power supply,
and VO2 is changed. VOOD/VOSD is confirmed by the error detection result from SOUT.
11 2007-05-22
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet TCA62746AFNG.PDF ] | |
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