STP16CPC26MTR STMicroelectronics, STP16CPC26MTR Datasheet

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STP16CPC26MTR

Manufacturer Part Number
STP16CPC26MTR
Description
Manufacturer
STMicroelectronics
Datasheet

Specifications of STP16CPC26MTR

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Features
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Description
The STP16CPC26 is a monolithic, low voltage,
16-bit constant current LED sink driver. The
device contains a 16-bit shift register and data
latches, which convert serial input data into
parallel output format. In the output stage sixteen
regulated current generators provide 5 mA to 90
mA constant current to drive LEDs. The current is
Table 1.
April 2011
16 constant current output channels
Adjustable output current through external
resistor
Output current: 5 mA to 90 mA
±1% typical current accuracy bit to bit
Max clock frequency: 30 MHz
20 V current generators rated voltage
5 V power supply
Thermal shutdown for overtemperature
protection
Video display panel LED driver
Special lighting
STP16CPC26XTTR
STP16CPC26MTR
STP16CPC26PTR
STP16CPC26TTR
Device summary
Order codes
Low voltage 16-bit constant current LED sink driver
Doc ID 18469 Rev 2
TSSOP24 exposed pad
TSSOP24
QSOP-24
Package
SO-24
externally adjusted through a resistor. LED
brightness can be adjusted from 0% to 100% via
OE
The STP16CPC26 guarantees a 20 V driving
capability, allowing users to connect more LEDs in
series to each current source.
The high 30 MHz clock frequency makes the
device suitable for high data rate transmission.
The thermal shutdown (170°C with about 15°C
hysteresis) assures protection from
overtemperature events.
The STP16CPC26 is housed in four different
packages: QSOP-2, SO-24, TSSOP-24 and
HTSSOP-24 (with exposed pad).
pin.
TSSOP24
QSOP-24
STP16CPC26
2500 parts per reel
2500 parts per reel
2500 parts per reel
1000 parts per reel
(exposed pad)
Packaging
TSSOP24
SO-24
www.st.com
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STP16CPC26MTR Summary of contents

Page 1

... In the output stage sixteen regulated current generators provide constant current to drive LEDs. The current is Table 1. Device summary Order codes STP16CPC26MTR STP16CPC26TTR STP16CPC26XTTR STP16CPC26PTR April 2011 QSOP-24 TSSOP24 externally adjusted through a resistor. LED brightness can be adjusted from 0% to 100% via pin ...

Page 2

Contents Contents 1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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STP16CPC26 1 Pin description Figure 2. Pin connection Note: Exposed-pad should be electrically connected to a metal land electrically isolated or connected to ground Table 2. Pin description Pin N° 5-20 OUT 0- ...

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Electrical ratings 2 Electrical ratings 2.1 Absolute maximum ratings Stressing the device above the rating listed in the “absolute maximum ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at ...

Page 5

STP16CPC26 3 Electrical characteristics 25°C, unless otherwise specified DD A Table 5. Electrical characteristics Symbol Parameter V Supply voltage DD V Input voltage high level IH V Input voltage low level IL V Serial ...

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Electrical characteristics 25°C, unless otherwise specified DD Table 6. Switching characteristics Symbol Parameter f Clock frequency clk t CLK - OUTn PLH1 OUTn Propagation PLH2 delay time (“L” to “H”) t ...

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STP16CPC26 4 Simplified Internal Block diagram Figure 3. STP16CPC26 simplified block diagram Simplified Internal Block diagram Doc ID 18469 Rev 2 7/27 ...

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Typical application circuit 5 Typical application circuit Figure 4. Typical application circuit 8/27 Doc ID 18469 Rev 2 STP16CPC26 ...

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STP16CPC26 6 Equivalent circuits for inputs and outputs Input terminals LE and OE have pull-down and pull-up connection respectively. CLK and SDI must be connected to external circuit to fix the logic level. Figure 5. OE terminal Figure 6. LE ...

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Equivalent circuits for inputs and outputs Figure 7. CLK, SDI terminal Figure 8. SDO terminal 10/27 Doc ID 18469 Rev 2 STP16CPC26 ...

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STP16CPC26 7 Typical test circuits Figure 9 and Figure 10 (e.g. input voltage high/low level, output leakage current, supply current, etc.) and switching characteristics (propagation delays, set-up and hold time, rise and fall time of V The resistor R and ...

Page 12

Timing diagrams 8 Timing diagrams The timing diagram shown in data to the device. This can be summarized in the following points: ● LE and OE are level sensitive and not synchronized with the CLK signal ● When LE is ...

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STP16CPC26 Table 7. Truth table CLOCK ? ? ? ? ? 1. OUTn = ON when OUTn = OFF when Figure 12. Timing for clock signal, serial-in and serial out data The correct sampling ...

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Timing diagrams Figure 13. Timing for clock signal serial-in data, latch enable, output enable and outputs Figure 14. Outputs 14/27 Doc ID 18469 Rev 2 STP16CPC26 ...

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STP16CPC26 9 Current generators characteristics 9.1 Current setting The current of all outputs is programmed through an external resistor connected to R-EXT pin, as shown in Figure The curve in Figure 16 connected to R-EXT pin, whereas the Figure 15. ...

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Current generators characteristics 9.2 Current accuracy A typical current accuracy of ±1% (±3% maximum) between channels is guaranteed and 55 mA output current (refer to between ICs. 9.3 Generators voltage drop In order to correctly regulate the ...

Page 17

STP16CPC26 In this example the turn-on and turn-off time (measured between the 10% and 90% of the voltage of the OUTn pin) are respectively around 55 ns and 75 ns. Figure 18. Turn-on time of the outputs Current generators characteristics ...

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Thermal shutdown 10 Thermal shutdown The STP16CPC26 is featured with a thermal shutdown. This protection is triggered if the junction temperature reaches 170°C. When the thermal shutdown is activated, all outputs are turned off independently on the data latched. Once ...

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STP16CPC26 11 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: ® ...

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Package mechanical data Figure 20. QSOP-24 package dimensions 20/27 Doc ID 18469 Rev 2 STP16CPC26 ...

Page 21

STP16CPC26 Table 11. TSSOP24 mechanical data Dim Figure 21. TSSOP24 package dimensions mm. Min Typ Max 1.1 0.05 0.15 0.9 0.19 0.30 0.09 0.20 7.7 7.9 4.3 4.5 0.65 ...

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Package mechanical data Table 12. Tape and reel TSSOP24 Dim Figure 22. Reel dimensions 22/27 mm. Min Typ Max - 330 12.8 - 13.2 20 22.4 ...

Page 23

STP16CPC26 Table 13. SO-24 mechanical data Dim Figure 23. SO-24 package dimensions mm. Min Typ Max 2.65 0.1 0.2 2.45 0.35 0.49 0.23 0.32 0.5 15.20 ...

Page 24

Package mechanical data Table 14. Tape and reel SO-24 Dim Figure 24. Reel dimensions 24/27 mm. Min Typ Max - 330 12.8 - 13.2 20 30.4 ...

Page 25

STP16CPC26 Table 15. TSSOP24 exposed-pad Dim Figure 25. TSSOP24 dimensions mm Min Typ Max 1.2 0.15 0.8 1 1.05 0.19 0.30 0.09 0.20 7.7 7.8 7.9 4.7 ...

Page 26

Revision history 12 Revision history Table 16. Document revision history Date 04-Mar-2011 05-Apr-2011 26/27 Revision 1 First release 2 Updated Table 5 Doc ID 18469 Rev 2 STP16CPC26 Changes ...

Page 27

... STP16CPC26 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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