TB62709F View Datasheet(PDF) - Marktech Optoelectronics
Part Name
Description
MFG CO.
'TB62709F' PDF : 24 Pages View PDF
TOSHIBA Bi-CMOS Integrated
Circuit Silicon Monolithic
TB62709N/F
Brightness Control
Brightness is controlled by controlling the “on time” duty cycle. The device allows for 16 bright-
ness steps as illustrated in list 3 with 0/16 as the dimmest setting (not illuminated) to 15/16 as
the brightest setting. The duty cycle control register is addressed with a 20 Hex command at
D15~D8 and the appropriate data per list 3 at D3~D0. D7~D4 are not recognized by the duty
cycle register. The initial state, upon power up is 15/16, or full brightness.
Duty Cycle
0/16
1/16
2/16
3/16
4/16
5/16
6/16
7/16
8/16
9/16
10/16
11/16
12/16
13/16
14/16
15/16
D15~D8
20H
20H
20H
20H
20H
20H
20H
20H
20H
20H
20H
20H
20H
20H
20H
20H
REGISTER DATA
D7~D4 D3 D2 D1 D0
—
0000
—
0001
—
0 0 10
—
00 11
—
0 100
—
0 10 1
—
0 1 10
—
0 111
—
10 0 0
—
100 1
—
10 10
—
10 11
—
1 10 0
—
110 1
—
1 1 10
—
1111
Hex Code
20X0H
20X1H
20X2H
20X3H
20X4H
20X5H
20X6H
20X7H
20X8H
20X9H
20XAH
20XBH
20XCH
20XDH
20XEH
20XFH
INITIAL
STATE
⇐
“x” indicates that data is required in this field to execute the function. “-” indicates that data in
this field is not required and not recognized.
marktech
optoelectronics
120 Broadway • Menands, New York 12204
Toll Free: (800) 98-4LEDS • Fax: (518) 432-7454
For up-to-date product info visit our web site at www.marktechopto.com
594
All specifications subject to change.
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