TOSHIBA Bi-CMOS
Constant Current Interface Driver
TB62715F/FN
Product Description:
8 Bit Constant Current LED Source Driver with
Shift Register and Latch Functions
TB62715F/FN
The TB62715F/FN are specifically designed for LED
display applications. The Bi-CMOS device has 8 Bi-
polar constant current output source channels and
includes CMOS shift register and latch functions.
The LED drive current is programmed by the installa-
tion of a single resistor per device. Current is pro-
grammable from 2-150mA and is held constant
across all 8 source outputs effectively compensating
for the inherent circuit and component variables which
affect the brightness of the LEDs.
Weight: 0.14g (typ)
Features:
Constant Output Current Matching:
High/Low
Terminal
"L"
"H"
TB67215F
Only
OUT-GND
Voltage
≥
0.4[V]
≥
1.0[V]
≥
0.4[V]
± 6.0 [%]
±15.0 [%]
Current
Skew (BIT)
Current
Skew (LOT)
Output
Current
2~70[mA]
50~150[mA]
2~70[mA]
Current Source Device
8 Constant Current Output Channels
Current Programmable from 2-150mA
F type - 70mA max
FN type - 150mA max
5V CMOS Compatible Inputs
15Mhz max Clock Frequency
Block Diagram:
120 Broadway Menands, New York 12204
Toll Free:
(888)
4LED-ICS
Fax: (518) 432-7454
All specifications subject to change.
1
TOSHIBA Bi-CMOS
Constant Current Interface Driver
TB62715F/FN
Timing Diagram:
Terminal Description & Pin Out:
PIN No.
PIN NAME
SSOP20
5
6, 15
1
2
3
4
7~10,
11~14
16
18
17
19
20
SSOP16
1
2
3
4
5~12
13
14
15
16
HIGH/LOW
POWER-GND
LOGIC-GND
SERIAL-IN
CLOCK
/LATCH
OUT0~7
/ENABLE
SERIAL-OUT1
SERIAL-OUT2
R-EXT
VDD
Use Current Select.
GND terminal for control output
GND terminal for control logic
Input terminal of a serial-data for shift-register
Input terminal of a clock for data shift to up-edge.
Input terminal of a data strobe. Latches passes data with "H" level input
of LATCH-terminal, and hold data with "L" level input.
Output terminals.
Input terminal of output enable. All outputs (OUT0~7) do off with "H" level
input of ENABLE-terminal, and do on with "L" level input.
Output terminal of a serial-data for next SERIAL-IN terminal.
Input terminal of connects with a resister for to set up all output current.
5V Supply voltage terminal
FUNCTION
120 Broadway Menands, New York 12204
Toll Free:
(888)
4LED-ICS
Fax: (518) 432-7454
All specifications subject to change.
2
TOSHIBA Bi-CMOS
Constant Current Interface Driver
TB62715F/FN
Truth Table:
CLOCK
UP
UP
UP
DOWN
DOWN
/LATCH
H
L
H
X
X
/ENABLE
L
L
L
L
H
SERIAL-IN
Dn
Dn+1
Dn+2
Dn+3
Dn+3
OUT0
Dn
OUT3
Dn-5
OUT7
Dn-7
SERIAL-OUT
Dn-7
Dn-6
Dn-5
Dn-5
Dn-5
Dn-5
Dn-5
No Change (data hold)
Dn+2
Dn+2
Dn-3
Dn-3
Off
Equivalent Circuit of Inputs and Outputs:
Maximum Ratings:
CHARACTERISTICS
Supply Voltage
Input Voltage
SYMBOL
VDD
VIN
RATING
0 ~ +7.0
-0.4 ~ VDD +0.4
+150 (High/Low="H")
Output Current
IOUT
+70 (High/Low="L")
+70 (TB62715F Only)
Output Voltage
Clock Frequency
Power Dissipation
VCEO
FCK
Pd1
Pd2
Rth(j-a)1
Rth(j-a)2
Topr
Tstg
-0.5 ~ +17.0
15.0
0.71 (FREE AIR) / 0.96 (On PCB)
0.37 (FREE AIR) / 0.78 (On PCB)
175 (FREE AIR) / 130 (On PCB)
330 (FREE AIR) / 160 (On PCB)
-40 ~ +85
-55 ~+150
V
MHz
W
UNIT
V
V
mA/ch
Thermal Resistance
Operating Temperature
Storage Temperature
°C/W
°C
°C
NOTE:
F type: Ambient temperature delated above 25°C in the proportion of 7.69mW/°C (On PCB)
FN type: Ambient temperature delated above 25°C in the proportion of 6.25mW/°C (On PCB)
120 Broadway Menands, New York 12204
Toll Free:
(888)
4LED-ICS
Fax: (518) 432-7454
All specifications subject to change.
3
TOSHIBA Bi-CMOS
Constant Current Interface Driver
TB62715F/FN
Recommended Operating Condition:
CHARACTERISTIC
Supply Voltage
Outout Voltage
SYMBOL
VDD
VOUT
IOUT1
Output Current
IOUT2
IOH
IOL
Input Voltage
LATCH Pulse Width
CLOCK Pulse Width
ENABLE Pulse Width
Set-up Time for DATA
Hold Time for Data
Set-up Time for LATCH
Hold Time for LATCH
Clock Frequency
Power Dissipation
VIH
VIL
tw LAT
tw CLK
tw EN
tsetup(D)
thold(D)
tsetup(L)
thold(L)
fCLK
Pd1
Pd2
Cascade Operation
FN type: Ta=85°C
F type: Ta=85°C
VDD=4.5 ~ 5.5V
DC 1 Circuit
DC 1 Circuit
SERIAL-OUT1,2
SERIAL-OUT1,2
CONDITION
MIN.
4.5
50
2
0.7VDD
-0.3
100
50
1000
10.0
TYP.
5.0
MAX.
5.5
15
130
60
-1.0
1.0
VDD+0.3
0.3VDD
25
20
50
40
0.50
0.40
W
ns
UNIT
V
V
mA/ch
mA
V
120 Broadway Menands, New York 12204
Toll Free:
(888)
4LED-ICS
Fax: (518) 432-7454
All specifications subject to change.
4
TOSHIBA Bi-CMOS
Constant Current Interface Driver
TB62715F/FN
Electrical Characteristics:
CHARACTERISTIC
"H" level
"L" level
SYMBOL
VIH
VIL
I LEAK
VOL
VOH
IOL1
dIOL1
IOL2
dIOL2
% / VDD
RIN(up)
RIN(down)
IDD (off)1
VDD
Supply
Current
VCC
IDD (off)2
IDD (off)3
IDD (on)1
IDD (on)2
REXT=OPEN
REXT=500Ω
REXT=160Ω,
REXT=500Ω,
REXT=160Ω,
TEST
CIR-
CUIT
VOH=15.0V
IOL=+1.0mA
IOH=-1.0mA
VCE=0.4V
REXT=470Ω
VCE=1.0V
REXT=160Ω
REXT=160Ω
F-Type and
High/Low="L"
CONDITION
MIN.
0.7VDD
GND
4.6
31.8
103.7
150
100
OUT1~8=off
OUT1~8=off
OUT1~8=off
OUT1~8=off
OUT1~8=on
TYP.
37.5
±1.5
122.0
±1.5
±1.5
300
200
1.0
5.8
16.1
12.7
32.5
MAX.
VDD
0.3VDD
10
0.4
43.1
±6.0
140.3
±6.0
±5.0
600
400
2.0
8.0
21.4
20.0
49.1
mA
µA
V
V
mA
%
mA
%
% /V
kΩ
kΩ
UNIT
Input
Voltage
V
Output Leakage Current
Output
Voltage
Output
Current 1
Output
Current 2
SERIAL-OUT
1,2
Current Skew
Current Skew
High/Low="H"
Ta=40~+85°C
Supply Voltage Regulation
Pull Up Resistor
Pull Down Resistor
(VLED=17V, VDD=5V, Ta=25ºC unless otherwise noted.)
120 Broadway Menands, New York 12204
Toll Free:
(888)
4LED-ICS
Fax: (518) 432-7454
All specifications subject to change.
5
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