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PDF TP6311 Data sheet ( Hoja de datos )
| Número de pieza | TP6311 | |
| Descripción | 1/8 TO 1/16 Duty VFD Controller | |
| Fabricantes | Tepro Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TP6311 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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General Description
The TP6311 is a VFD (Vacuum Fluorescent Display)
controller/driver that is driven on a 1/8 to 1/16-duty
factor. It consists of 12 segment output lines, 8 grid
output lines, 8 segment/grid output drivelines, a
display memory, a control circuit, and a key scan
circuit. Serial data is input to TP6311 through a
three-line serial interface. This VFD controller/driver
is ideal as a peripheral device of a single-chip
microcomputer.
Ordering Information
TP 6311
Footprint
Version
Package Type
Block Diagram
TP6311
1/8 TO 1/16-DUTY VFD CONTROLLER
Features
Multiple display modes (12-segment & 16-digit to
20-segment & 8-digit)
Key scanning (12×4 matrices)
Dimming circuit (eight steps)
High-voltage output (VDD – 35V max)
LED ports (5 chs, 20 mA max)
General-purpose input port (4 bits)
No external resistor necessary for driver outputs
(P-ch open-drain + pull-down resistor output)
Serial interface (CLK, STB, DIN, DOUT)
Package Type Q: QFP
Footprint L: 3.2 mm
DIN
DOUT
CLK
STB
VDD
R
Serial I/F
OSC
Key1
to
Key4
4
SW1
to
SW4
4
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Command decoder
Dimming circuit
Display memory
20 bit x 16 word
20 12
8
Timing generator key
scan
Key data memory
(4 x 12)
8
8
16 8
5 bit latch
LED1
LED5
VDD
(+5V)
VSS
(0V)
VEE
(-30V)
Seg1
Seg12
Seg13/Gird16
Seg12/Gird9
Grid1
Grid8
Version 1.1
November 2003
Page 1 of 9
http://www.topro.com.tw
1 page  
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Serial Communication Format
Reception (command/data write)
STB
DIN
CLK
b0 b1 b2
If data is cintiguous
b6 b7
TP6311
1/8 TO 1/16-DUTY VFD CONTROLLER
Transmission (data read)
STB
DIN
CLK
DOUT
b0 b1 b2 b3 b4 b5 b6 b7
1
2
3
4
5
6
7
t8
WAIT
1
2
3
4
5
6
b0 b1 b2 b3 b4 b5
Data reading command is set.
Data reading starts.
Because the DOUT pin is an N-ch open-drain output
pin, be sure to connect an external pull-up resistor to
this pin (1kΩ to 10 kΩ).
“*”: When data is read, a wait time (tWAIT) of 1µs is
necessary from the rising of the eighth clock that has
set the command till the falling of the first clock that
has read the data.
Absolute Maximum Ratings (Ta = 25°C, VSS = 0V)
Parameter
Symbol
Ratings
Logic Supply Voltage
Driver Supply Voltage
Logic Input Voltage
VFD Driver Output Voltage
LED Driver Output Current
VFD Driver Output Current
Power Dissipation
VDD -0.5 to + 7.0
VEE VDD +0.5 to VDD -40
VIL -0.5 to VDD +0.5
Vo2 VEE –0.5 to VDD +0.5
Io1 +25
Io2
-40 (grid)
-15 (segment)
PD 1200*
Operating Ambient Temperature
Topt
-40 to +85
Storage Temperature
Tstg -65 to +150
* Derate at –9.6 mW/°C at Ta = 25°C or higher.
Unit
V
V
V
V
mA
mA
mW
°C
°C
Recommended Operating Conditions (Ta = -20°C to +70°C, VSS = 0V)
Parameter
Symbol
Min.
Typ. Max. Unit
Logic Supply Voltage VDD 4.5 5 5.5 V
High-Level Input Voltage
VIH
0.7VDD
VDD
V
Low-Level Input Voltage
VIL
0
0.3VDD V
Driver Supply Voltage
VEE
0
VDD-35 V
Maximum power consumption PMAX = VFD driver dissipation + RL dissipation + LED driver dissipation + dynamic power consumption.
When segment current = 3 mA, grid current = 15mA, and LED current = 20 mA,
VFD driver dissipation = number of segments x 6 + number of grids/(number of grids + 1) x 30(mW)
RL dissipation (VDD-VEE)2/50 x (segment+1) (mW)
LED driver dissipation = number of LEDs x 20(mW)
wDywnawm.icDpoawtear Scohnseumeptt4ioUn =.cVDoDmx 5(mW)
Version 1.1
November 2003
Page 5 of 9
http://www.topro.com.tw
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet TP6311.PDF ] | |
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