MAX6969AWG-T Maxim Integrated Products, MAX6969AWG-T Datasheet - Page 8
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MAX6969AWG-T
Manufacturer Part Number
MAX6969AWG-T
Description
LED Drivers 16-Port, 5.5V LED Dr iver, 16-Segment Any
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6969ANG.pdf
(12 pages)
Specifications of MAX6969AWG-T
Number Of Segments
32
Low Level Output Current
60000 uA
Operating Supply Voltage
3 V to 5.5 V
Maximum Supply Current
25000 uA
Maximum Power Dissipation
941 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Package / Case
SOIC-24 Wide
Minimum Operating Temperature
- 40 C
16-Port, 5.5V Constant-Current LED Driver
Figure 3. LE and CLK to OUT_ Timing
Table 1. 4-Wire Serial-Interface Truth Table
L = Low-logic level.
H = High-logic level.
X = Don’t care.
P = Present state.
R = Previous state.
Hi-Z = High impedance.
8
SERIAL
INPUT
DATA
OUT_
LE
OUT_
LE
CLK
OUT_
CLK
DIN
OUT_
—
—
—
H
L
X
_______________________________________________________________________________________
CLOCK
INPUT
CLK
—
—
—
D
R
P
—
H
X
L
0
0
0
SHIFT-REGISTER
D
R
R
R
P
—
t
t
X
LRF
t
LRR
CRF
t
1
0
0
1
1
CRR
CONTENTS
D
R
R
R
P
—
X
1
1
2
2
2
… D
… R
… R
… R
…
… P
—
—
n-1
n-2
n-2
n-1
n-1
X
R
R
D
R
P
—
X
n-1
n-1
n
n
n
INPUT
LOAD
LE
—
—
—
—
H
L
D
R
P
—
—
—
X
0
0
0
LATCH CONTENTS
D
R
P
—
—
—
X
1
1
1
CLK is the serial-clock input, which shifts data at DIN
into the MAX6969 16-bit shift register on its rising edge.
LE is the latch load input of the MAX6969 that transfers
data from the MAX6969 16-bit shift register to its 16-bit
latch when LE is high (transparent latch), and latches
the data on the falling edge of LE (Figure 2).
The fourth input provides output-enable control of the
output drivers. OE is high to force outputs
OUT0–OUT15 high impedance, without altering the
contents of the output latches, and low to enable out-
puts OUT0–OUT15 to follow the state of the output
latches.
OE is independent of the operation of the serial inter-
face. Data can be shifted into the serial-interface shift
register and latched, regardless of the state of OE.
DOUT is the serial-data output, which shifts data out
from the MAX6969’s 16-bit shift register on the rising
edge of CLK. Data at DIN is propagated through the
shift register and appears at DOUT 16 clock cycles later.
D
R
P
—
—
—
X
2
2
2
… D
—
—
—
— R
… P
…
—
—
—
n-1
n-1
n-1
X
D
R
P
—
—
—
X
n
n
n
BLANKING
INPUT
OE
—
—
—
—
H
L
Hi-Z Hi-Z Hi-Z … Hi-Z Hi-Z
D
—
—
—
—
P
0
0
OUTPUT CONTENTS
D
P
—
—
—
—
1
1
D
P
—
—
—
—
2
2
… D
—
—
—
—
… P
—
—
—
—
n-1
n-1
D
P
—
—
—
—
n
n