STP16C596
16-Bit, constant current LED sink driver
Features
■
16 constant current output channels
■
Adjustable output current through external
resistor
■
Serial data IN/parallel data OUT
■
Serial out change state on the falling edges of
clock
■
Output current: 15-120 ma
■
25MHz clock frequency
■
Available in high thermal TSSOP exposed pad
■
Efficiency package
DIP-24
SO-24
TSSOP24
TSSOP24
(exposed pad)
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d
Description
The STP16C596 is a monolithic, medium-voltage,
low current power 16-bit shift register designed for
LED panel displays. The STP16C596 contains a
16-bit serial-IN, parallel-OUT shift register that
feeds a 16-bit, D-type storage register. In the
output stage, sixteen regulated current sources
are designed to provide 15-120mA constant
current to drive the LEDs.
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Through an external resistor, users may adjust the
STP16C596 output current, controlling in this way
the light intensity of LEDs.
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Ob
-
The serial output change state on the falling
edges of clock, this special feature will provide an
improved performance of the application when the
clock signal is skewed because the daisy chain is
too long.
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The STP16C596 guarantees a 16V output driving
capability, allowing users to connect more LEDs in
series. The high clock frequency, 25MHz, also
satisfies the system demand for high volume data
transmission. Compared with a standard TSSOP
package, the TSSOP exposed pad increases heat
dissipation capability by a 2.5 factor.
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Order codes
Part Number
Package
Packaging
STP16C596B1R
DIP-24
15 parts per tube
STP16C596M
SO-24 (Tube)
40 parts per tube
STP16C596MTR
SO-24 (Tape & Reel)
1000 parts per reel
STP16C596TTR
TSSOP24 (Tape & Reel)
2500 parts per reel
STP16C596XTTR
TSSOP24 Exposed-Pad (Tape & Reel)
2500 parts per reel
July 2006
Rev 10
1/24
www.st.com
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