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PDF STP08CDC596 Data sheet ( Hoja de datos )

Número de pieza STP08CDC596
Descripción 8-BIT CONSTANT CURRENT LED SINK DRIVER
Fabricantes ST Microelectronics 
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STP08CDC596
8-BIT CONSTANT CURRENT
LED SINK DRIVER WITH FULL OUTPUT DETECTION
8 CONSTANT CURRENT OUTPUT
CHANNELS
ADJUSTABLE OUTPUT CURRENT
THROUGH ONE EXTERNAL RESISTOR
OPEN AND SHORT LINE, SHORT TO GND,
SHORT TO V-LED SUPPLY ERROR
DETECTION
SERIAL DATA IN/PARALLEL DATA OUT
SERIAL OUT CHANGE STATE ON THE
FALLING EDGES OF CLOCK
OUTPUT CURRENT: 20-120 mA
25 MHz CLOCK FREQ.
DIP-16
SO-16
DESCRIPTION
The STP08CDC596 is a monolithic,
medium-voltage, low current power 8-bit shift
register designed for LED panel display. The
STP08CDC596 contains a 8-bit serial-in,
parallel-out shift register that feeds a 8-bitD-type
storage register. In the output stage, eight
regulated current sources were designed to
provide 15-120mA constant current to drive the
LEDs.
The STP08CDC596 contains the built-IN error
detection feature. The device performs this
additional function without any increase of the pin
number and any change of the pin function, if
compared to the standard device without error
detection. Consequently, choosing this device
does not mean to change the footprint on the
board. To perform this functionality mode, the
device needs a digital key coming from the
Microprocessor. The STP08CDC596 is able to
detect: open and short on the LED line, short to
Table 1: Order Codes
TSSOP16
GND, short to Led voltage supply. The data
mapping of output channels status detection is
provided by a feedback from the serial output to
the Microprocessor.
Trough an external resistor, users may adjust the
STP08CDC596 output current, controlling the light
intensity of LEDs.
The STP08CDC596 guarantees 16V output
driving capability, allowing users to connect more
LEDs in series. The high clock frequency, 25 MHz,
also satisfies the system requirement of high
volume data transmission.
The device is offered in DIP-16, SO-16 and
TSSOP-16 packages.
The STP08CDC596 is well suitable for traffic
display signs where the detection feature is
strongly required.
Type
STP08CDC596B1
STP08CDC596M
STP08CDC596MTR
STP08CDC596TTR
Temp. Range
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
Package
DIP-16
SO-16 (Tube)
SO-16 (Tape & Reel)
TSSOP16 (Tape & Reel)
Comments
25 part per tube
50 parts per tube
2500 parts per reel
2500 parts per reel
October 2005
Rev. 2
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STP08CDC596 pdf
Figure 3: LE/DM1 Terminal
Figure 4: CLK, SDI Terminal
Figure 5: SDO Terminal
STP08CDC596
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STP08CDC596 arduino
STP08CDC596
Phase Three: “Resuming to Normal Mode”
The sequence for re-entering in normal mode is showed in the following Table and diagram:
Table 11: Resuming to Normal Mode Timing Diagram
CLK
OE/DM2
H
L
H
H
H
LE/DM1
L
L
L
L
L
Figure 16: Resuming to Normal Mode Timing Diagram
For proper device operation the "Entering in detection" sequence must be follow by a "Resume Mode" sequence, isn’t possible to insert con-
secutive equal sequence.
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