STP16DPP05 STMicroelectronics, STP16DPP05 Datasheet

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STP16DPP05

Manufacturer Part Number
STP16DPP05
Description
Low voltage 16-bit constant current LED sink driver with output error detection
Manufacturer
STMicroelectronics
Datasheet

Specifications of STP16DPP05

Output Current
3 to 40 mA
Esd Protection
2 kV HBM, 200 V MM

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Part Number:
STP16DPP05MTR
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Part Number:
STP16DPP05XTTR
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Features
Description
The STP16DPP05 is a monolithic, low voltage,
low current power 16-bit shift register designed for
LED panel displays. The device features 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 3 to 40 mA of constant current to drive the
LEDs. The STP16DPP05 features open and short
LED detection on the outputs. The detection
circuit checks for 3 different conditions that can
occur on the output line: short to GND, short to V
or open line.
Table 1.
October 2009
Low voltage power supply down to 3 V
16 constant current output channels
Adjustable output current through external
resistor
Short and open output error detection
Serial data IN/parallel data OUT
3.3 V MCU-driving capability
Output current: 3 to 40 mA
30 MHz clock frequency
Available in high thermal efficiency TSSOP
exposed pad
ESD protection: 2 kV HBM, 200 V MM
STP16DPP05XTTR
STP16DPP05MTR
STP16DPP05TTR
STP16DPP05PTR
Order codes
Device summary
LED sink driver with output error detection
TSSOP24 (tape and reel)
TSSOP24 exposed pad
Doc ID 16518 Rev 1
SO-24 (tape and reel)
(tape and reel)
O
QSOP-24
Package
Low voltage 16-bit constant current
The data detection results are loaded in the shift
registers and shifted out via the serial line output.
The detection functionality is implemented without
increasing the pin count, through a secondary
function of the output enable and latch pin (DM1
and DM2 respectively). A dedicated logic
sequence allows the device to enter or exit from
detection mode. The STP16DPP05 output current
can be adjusted through an external resistor to
control the light intensity of the LEDs.
LED brightness is adjustable from 0% to 100% via
the OE/DM2 pin.
The STP16DPP05 guarantees a 20 V output
driving capability, allowing users to connect more
LEDs in series. The high 30 MHz clock frequency
makes the device suitable for high data rate
transmission. The 3.3 V supply is well suited for
applications which interface a 3.3 V MCU.
Compared to a standard TSSOP package, the
TSSOP with exposed pad increases heat
dissipation capability by a factor of 2.5
TSSOP24
QSOP-24
STP16DPP05
1000 parts per reel
2500 parts per reel
2500 parts per reel
2500 parts per reel
(exposed pad)
Packaging
TSSOP24
SO-24
www.st.com
1/32
32

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STP16DPP05 Summary of contents

Page 1

... LEDs. LED brightness is adjustable from 0% to 100% via the OE/DM2 pin. The STP16DPP05 guarantees output driving capability, allowing users to connect more LEDs in series. The high 30 MHz clock frequency makes the device suitable for high data rate transmission ...

Page 2

... Equivalent circuit and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7 Error detection mode functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.1 Phase one: entering error detection mode . . . . . . . . . . . . . . . . . . . . . . . . 18 7.2 Phase two: error detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 7.3 Phase three: resuming normal mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7.4 Error detection conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2/32 Doc ID 16518 Rev 1 STP16DPP05 ...

Page 3

... STP16DPP05 1 Summary description Table 2. Typical current accuracy Output voltage ≥ 1.3 V 1.1 Pin connection and description Figure 1. Pin connection Note: The exposed pad should be electrically connected to a metal land electrically isolated or connected to ground. Current accuracy Output current Between bits Between ICs ± 1% ± 2% ...

Page 4

... Latch input terminal - detect mode 1 (see operation principle) Output terminal Input terminal of output enable (active low) - detect mode 1 (see operation principle) SDO Serial data out terminal Input terminal for an external resistor for constant current R-EXT programming V Supply voltage terminal DD Doc ID 16518 Rev 1 STP16DPP05 Name and function ...

Page 5

... STP16DPP05 2 Electrical ratings 2.1 Absolute maximum ratings Stressing the device above the ratings 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 these or any other condition above those indicated in the operating sections of this specification is not implied ...

Page 6

... If the device is connected in cascade, it may not be possible achieve the maximum data transfer. Please consider the timings carefully. 6/32 Test conditions Min. 3.0 OUTn 3 SERIAL-OUT SERIAL-OUT 0 100 (1) Cascade operation Doc ID 16518 Rev 1 STP16DPP05 Typ. Max. Unit 5 0 ...

Page 7

... STP16DPP05 3 Electrical characteristics Table 7. Electrical characteristics Symbol V Input voltage high level IH V Input voltage low level IL I Output leakage current OH Output voltage V OL (serial-OUT) Output voltage V OH (serial-OUT) I OL1 I Output current OL2 I OL3 ΔI OL1 Output current error Δ ...

Page 8

... In order to achieve high cascade data transfer, please consider tr/tf timings carefully. 8/ °C, unless otherwise specified. A Test conditions GND 3 Ω KΩ R EXT L Doc ID 16518 Rev 1 STP16DPP05 Min Typ Max V = 3.3 V 35 3 ...

Page 9

... STP16DPP05 4 Equivalent circuit and outputs Figure 2. OE/DM2 terminal Figure 3. LE/DM1 terminal Figure 4. CLK, SDI terminal Equivalent circuit and outputs Doc ID 16518 Rev 1 9/32 ...

Page 10

... Equivalent circuit and outputs Figure 5. SDO terminal Figure 6. Block diagram 10/32 Doc ID 16518 Rev 1 STP16DPP05 ...

Page 11

... STP16DPP05 5 Timing diagrams Table 9. Truth table CLOCK LE/DM1 Note: OUTn = ON when OUTn = OFF when Figure 7. Timing diagram Note: 1 Latch and output enable terminals are level-sensitive and are not synchronized with rising or falling edge of CLK signal. 2 When LE/DM1 terminal is low level, the latch circuit holds previous set of data. ...

Page 12

... LE/DM1 power-up, the device starts in shutdown mode. 2. Undefined. Figure 8. Clock, serial-in, serial-out 12/32 SDI ........... SDI ............ SDI All = L No change One or more = H Doc ID 16518 Rev 1 STP16DPP05 Auto SH OUTn Power-up (1) Active Not active OFF No change No change No change Not active Active X (2) ...

Page 13

... STP16DPP05 Figure 9. Clock, serial-in, latch, enable, outputs LE/DM1 OE/DM2 OUTn Figure 10. Outputs OUTn Doc ID 16518 Rev 1 Timing diagrams 13/32 ...

Page 14

... Figure 11. Output current vs. R-EXT resistor Table 11. Output current vs. R-EXT resistor 14/32 25000 20000 15000 10000 5000 Current (mA) R-EXT (Ω) 23700 11730 6930 4090 2025 1000 667 497 331 Doc ID 16518 Rev 1 STP16DPP05 Output current (mA ...

Page 15

... STP16DPP05 Conditions: Temperature = 25 °C, V Figure 12. I SET 1200 1000 800 600 400 200 Table 12. I SET Iout (mA 3 mA; 5 mA; 10 mA; 20 mA; 50 mA; 60 mA. DD SET vs. dropout voltage (V ) drop Current (mA) vs ...

Page 16

... Vdd = 3 Figure 13. Output current vs. ± ΔI Figure 14. Idd ON/OFF 16/32 (%) Iset (mA) Doc ID 16518 Rev 1 STP16DPP05 AVG IDD ON @ 5.0V AVG IDD ON @ 3.3V AVG IDD OFF @ 5.0V AVG IDD OFF @ 3. ...

Page 17

... STP16DPP05 Figure 15. Power dissipation vs. package temperature Note: The exposed pad should be soldered to the PCB to obtain the thermal benefits. Figure 16. Turn ON output current characteristics Electrical conditions: Vdd = 3.3 V, Vin = Vdd, Vled = 3 Ω Ch1 (Yellow) = OE/DM2, Ch2 (Blue) = SDI, Ch3 (Purple) = VOUT, Ch4 (Green) = OUT 1 ...

Page 18

... After these five CLK cycles, the device goes into “error detection mode” and at the rising edge of the 6th CLK cycle, the SDI data are ready for sampling. 18/32 1° 2° Doc ID 16518 Rev 1 STP16DPP05 3° 4° 5° ...

Page 19

... STP16DPP05 7.2 Phase two: error detection The 16 data bits must be set to “1” in order for all the outputs during error detection. The data are latched by LE/DM1, after which the outputs are ready for the detection process. When the microcontroller switches the OE/DM2 to LOW, the device drives the LEDs to analyze if an OPEN or SHORT condition has occurred ...

Page 20

... Error detection mode functionality Figure 20. Timing example for open and/or short-circuit detection 20/32 Doc ID 16518 Rev 1 STP16DPP05 ...

Page 21

... Figure 22. Detection circuit 1° 2° 3 temperature range -40 to 125 °C) DD Detect mode ≤ 0 ==> I ODEC ≥ 2.6 V ==> STP16DPP05 16 Doc ID 16518 Rev 1 Error detection mode functionality 3° 4° Detection results No error ==> ODEC detected No error ≤ ...

Page 22

... On the rising edge of f irst CLK pulse af ter the detection, the SDO provides the Output status f eedback with the sequence Out 15; Out 14…Out 0. In this case all the outputs are in f ault condition (Open or Short) Doc ID 16518 Rev 1 STP16DPP05 This OE/DM2 pulse put the device in Normal Mode Condition af ter EDM test ...

Page 23

... STP16DPP05 8 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: www.st.com. ® ECOPACK trademark. Table 15. QSOP-24 mechanical data Dim ...

Page 24

... Package mechanical data Figure 24. QSOP-24 package dimensions 24/32 Doc ID 16518 Rev 1 STP16DPP05 ...

Page 25

... STP16DPP05 Table 16. QSOP-24 tape and reel Dim eint e1 Figure 25. QSOP-24 tape and reel dimensions 0.3+/-0.05 0.3+/-0.05 mm. Min Typ Max 12.8 13 13.5 330 100 16.4 1.5 2 2.5 2.0+/-0.1 2.0+/-0.1 1.5+1/0 1.5+1/0 8 +/-0.1 8 +/-0.1 2.1 +/-0.1 2.1 +/-0.1 Doc ID 16518 Rev 1 Package mechanical data Inches Min Typ 5.039 5.118 129.921 39.37 6.457 0.591 0.787 4.0+/-0.1 4.0+/-0.1 1.75+/-0.1 1.75+/-0.1 16 +/-0.3 16 +/-0.3 1.6 +1/-0.1 1.6 +1/-0.1 Max 5.315 0.984 7217811_C ...

Page 26

... Figure 26. TSSOP24 package dimensions 26/32 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 BSC 6.25 6.5 0° 8° 0.50 0.70 Doc ID 16518 Rev 1 STP16DPP05 Inches Min Typ Max 0.043 0.002 0.006 0.035 0.0075 0.0118 0.0035 0.0079 0.303 0.311 0.169 0.177 0.0256 BSC 0.246 0.256 0° 8° 0.020 0.028 ...

Page 27

... STP16DPP05 Table 18. TSSOP24 exposed pad mechanical data Dim Figure 27. TSSOP24 exposed pad 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 5.0 5.3 6.2 6.4 6.6 4.3 4.4 4.5 2.9 3.2 3.5 0.65 0° 8° 0.45 0.60 0.75 Doc ID 16518 Rev 1 Package mechanical data Inches Min Typ Max 0.047 0.004 0.006 0.031 0.039 0.041 ...

Page 28

... Figure 28. TSSOP24 and TSSOP24 exposed pad tape and reel dimensions 28/32 mm. Min Typ Max 330 12.8 13.2 20.2 60 22.4 6.8 7 8.2 8.4 1.7 1.9 3.9 4.1 11.9 12.1 Doc ID 16518 Rev 1 STP16DPP05 Inches Min Typ Max 12.992 0.504 0.519 0.795 2.362 0.882 0.268 0.276 0.323 0.331 0.067 0.075 0.153 0.161 0.468 0.476 ...

Page 29

... STP16DPP05 Table 20. SO-24 mechanical data Dim Figure 29. 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 15.60 10.00 10.65 1.27 13.97 7.40 7.60 0.50 1.27 Doc ID 16518 Rev 1 Package mechanical data Inches Min Typ 0.004 0.014 0.009 0.020 45°(typ.) 0.598 0.393 0.050 0.550 0.291 0.020 °(max.) 8 Max 0 ...

Page 30

... Tape and reel SO-24 Dim Figure 30. SO-24 tape and reel dimensions 30/32 mm. Min Typ Max 330 12.8 13.2 20.2 60 30.4 10.8 11.0 15.7 15.9 2.9 3.1 3.9 4.1 11.9 12.1 Doc ID 16518 Rev 1 STP16DPP05 Inches Min Typ Max 12.992 0.504 0.519 0.795 2.362 1.197 0.425 0.433 0.618 0.626 0.114 0.122 0.153 0.161 0.468 0.476 ...

Page 31

... STP16DPP05 9 Revision history Table 22. Document revision history Date 22-Oct-2009 Revision 1 Initial release. Doc ID 16518 Rev 1 Revision history Changes 31/32 ...

Page 32

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 32/32 Please Read Carefully: © 2009 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 16518 Rev 1 STP16DPP05 ...

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