TB62710PG/FG/FNG
TOAHIBA Bi-CMOS Integrated Circuit
Silicon Monolithic
TB62710PG,TB62710FG,TB62710FNG
8-Bit Constant-Current LED Driver for Cathode Common LED
The TB62710PG, TB62710FG and TB62710FNG are specifically
designed for use as LED and LED display (cathode-common)
Constant-current drivers.
The constant-current output circuits can be set up using an
external resistor (IOUT =
−90
mA max).
These ICs are monolithic integrated circuits have been
designed using the Bi-CMOS process.
The devices consist of an 8-bit shift register, a latch, an
ANDgate and constant-current drivers.
TB62710PG
FEATURES
•
Constant-current output:
A single resistor can be used to set any output current in the
range
−5~−90
mA.
•
•
•
Maximum clock frequency: f
CLK
= 15 MHz
(operating while connected in cascade, T
opr
= 25°C)
5-V CMOS compatible input
Packages:
PG-type: DIP20-P-300-2.54A
FG-type: SSOP24-P-300-1.00
FNG-type: SSOP20-P-225-0.65A
•
Constant-output-current accuracy:
Output
−
GND
Voltage
≥
2.0 V (min)
≥
1.5 V (min)
Current accuracy
between bits
between ICs
±6%
±15%
Output Current
(max)
−5~−90
mA
−5~−40
mA
TB62710FG
TB62710FNG
Weight
DIP20-P-300-2.54A: 2.25 g (typ.)
SSOP24-P-300-1.00: 0.33 g (typ.)
SSOP20-P-225-0.65A: 0.10 g (typ.)
For part availability and ordering information please call Toll Free: 800.984.5337
Website: www.marktechopto.com | Email: info@marktechopto.com
1
2007-02-02
TB62710PG/FG/FNG
Pin Assignment
(top view)
P- & FN-types
GND
SERIAL-IN
CLOCK
LATCH
NC
V
CC
OUT0
OUT1
OUT2
OUT3
V
DD
R-EXT
SERIAL-OUT1
ENABLE
SERIAL-OUT2
V
CC
OUT7
OUT6
OUT5
OUT4
GND
SERIAL-IN
CLOCK
NC
LATCH
NC
V
CC
NC
OUT0
OUT1
OUT2
OUT3
F-type
V
DD
R-EXT
SERIAL-OUT1
ENABLE
SERIAL-OUT2
NC
V
CC
NC
OUT7
OUT6
OUT5
OUT4
Block Diagram
OUT0
OUT1
OUT7
R-EXT
I-REG
V
CC
V
CC
V
CC
ENABLE
Q
ST
LATCH
D
CK
SERIAL-OUT1
SERIAL-IN
D
CK
Q
D
CK
Q
D
CK
Q
Q
SERIAL-OUT2
D
ST
Q
D
ST
Q
D
CLOCK
Truth Table
CLOCK
LATCH
ENABLE
L
L
L
L
H
SERIAL-IN
Dn
Dn
+
1
Dn
+
2
Dn
+
3
Dn
+
3
OUT0
…
OUT5
…
OUT7
Dn
…
Dn
−
5
…
Dn
−
7
No Change
Dn
+
2
…
Dn
−
3
…
Dn
−
5
Dn
+
2
…
Dn
−
3
…
Dn
−
5
OFF
SERIAL-OUT
Dn
−
7
Dn
−
6
Dn
−
5
Dn
−
5
Dn
−
5
H
L
H
X
X
Note 1: OUT0~OUT7
=
ON when Dn
=
“H”; OUT0~OUT7
=
OFF when Dn
=
“L”.
In order to ensure that the level of the power supply voltate is correct, an external resistor must be
connected between R-EXT and GND.
2
2007-02-02
TB62710PG/FG/FNG
Timing Diagram
n
=
1
CLOCK
0V
5V
SERIAL-IN
0V
5V
LATCH
0V
5V
ENABLE
0V
2
3
4
5
6
7
8
5V
OUT0
OFF
OUT1
OFF
ON
OFF
OUT6
OFF
OUT7
OFF
ON
OFF
5V
SERIAL-OUT1
0V
5V
SERIAL-OUT2
0V
Note 2: The latches circuit holds data by pulling the
LATCH
terminal Low.
And, when
LATCH
terminal is a “H” level, latch circuit doesn’t hold data, and it passes from the input to the
output.
When
ENABLE
terminal is a “L” level, output terminal OUT0~ OUT7 respond to the data, and on & off does.
And, when
ENABLE
terminal is a “H” level, it offs with the output terminal regardless of the data.
3
2007-02-02
TB62710PG/FG/FNG
Terminal Description
Pin No.
P/FN-Type
1
2
3
4
6, 15
7~14
F-Type
1
2
3
5
7, 18
9~16
GND
SERIAL-IN
CLOCK
LATCH
V
CC
OUT0~OUT7
GND terminal for control logic
Input terminal for serial data for data shift register
Input terminal for clock for data shift on rising edge
Input terminal for data strobe
When the LATCH input is driven High, data is latched. When it is pulled Low, data
is hold.
0 V~17 V supply voltage terminal for LED
Output terminals
Input terminal for output enable.
17
21
ENABLE
All outputs (OUT0~OUT7) are turned off, when the ENABLE terminal is driven
High.
And are turned on, when the terminal is driven Low.
16
18
19
20
5
20
22
23
24
4, 6, 8,
17, 19
SERIAL-OUT2 Output terminal for serial data input on SERIAL-IN terminal
SERIAL-OUT1 Output terminal for serial data input on SERIAL-IN terminal
R-EXT
V
DD
NC
Input terminal used to connect an external resistor. This regulated the output current.
5-V supply voltage terminal
Not connected
Pin Name
Function
Equivalent Circuits For Inputs and Outputs
ENABLE terminal
V
DD
R (UP)
300 k
LATCH terminal
V
DD
ENABLE
LATCH
200 k
GND
GND
R (DOWN)
CLOCK, SERIAL-IN terminal
V
DD
SERIAL-OUT1 and SERIAL-OUT2 terminals
V
DD
CLOCK,
SERIAL-IN
SERIAL-OUT1, 2
GND
GND
4
2007-02-02
TB62710PG/FG/FNG
Absolute Maximum Ratings
(T
opr
=
25°C)
Characteristic
Supply voltage
Supply voltage for LED
Input voltage
Output current
Output voltage
Clock frequency
V
CC
terminal current
PG-type
(when not mounted)
Power
Dissipation
FG-type
(when not mounted)
Symbol
V
DD
V
LED
V
IN
I
OUT
V
OUT
f
CLK
IV
CC
P
d1
Rating
0~7.0
0~17.0
−
0.4~V
DD
+
0.4
−
90
−
0.4~17
Unit
V
V
V
mA
V
MHz
mA
15
1440
1.47
0.59
0.83
P
d2
(Note 3) FG-type (on PCB)
FNG-type
(when not mounted)
FNG-type (on PCB)
PG-type
(when not mounted)
Thermal
Resistance
(Note 3)
FG-type
(when not mounted)
FG-type (on PCB)
FNG-type
(when not mounted)
FNG-type (on PCB)
Operating Temperature
Storage Temperature
T
opr
T
stg
R
th (j-a) 3
R
th (j-a) 1
P
d3
W
0.71
0.96
85
210
150
175
130
−
40~85
−
55~150
R
th (j-a) 2
°C/W
°C
°C
Note 3: PG-Type: Powes dissipation is derated by 12.5 mW/°C if device is mounted on PCB and ambient
temperature is above 25°C.
FG-Type: Powes dissipation is derated by 6.7 mW/°C if device is mounted on PCB and ambient temperature
is above 25°C.
With device mounted on PCB of 60% Cu and of dimensions 50 mm
×
50 mm
×
1.6 mm
FNG-Type: Powes dissipation is derated by 7.7 mW/°C if device is mounted on PCB and ambient
temperature is above 25°C.
With device mounted on PCB of 40% Cu and of dimensions 50 mm
×
50 mm
×
1.6 mm
5
2007-02-02
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
