STP1612PW05 STMicroelectronics, STP1612PW05 Datasheet
STP1612PW05
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STP1612PW05 Summary of contents
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... All the control and the shift register read back data are accessible via serial interface. The STP1612PW05 has the capability to detect open and short LED failure and overtemperature, reporting the status through SPI line. The device guarantees output driving capability, allowing the user to connect more LEDs in series ...
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... Grey scales data loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 9 Setting the PWM gray scale counter . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9.1 PWM data synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9.2 Synchronization for PWM counting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 10 Error detection conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 11 Setting output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 12 Constant current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 13 Current gain adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 14 Delay time of staggered output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 15 Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 2/41 Doc ID 15819 Rev 5 STP1612PW05 ...
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... STP1612PW05 16 Time-out alert of GCLK disconnection . . . . . . . . . . . . . . . . . . . . . . . . . 26 17 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 17.1 LED supply voltage (VLED 17.2 Setting grayscale brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 17.3 Multi device application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 18 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 19 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Doc ID 15819 Rev 5 Contents 3/41 ...
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... GND VDD UVLO & POR 16-bit Configuration and Register PWM data buffer (16x16 bit) Doc ID 15819 Rev 5 STP1612PW05 R-EXT Dual range gain 7-bit DAC Gradual outputs delay Open/short error detection PWM and e-PWM 12/16 bit counter and SYNC control PWCLK ...
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... STP1612PW05 2 Summary description Table 2. Typical current accuracy Output voltage ≥ 1.0 ≥ 0,2 Table 3. Typical current accuracy at 3.3 V Output voltage ≥ 1.0 ≥ 0,3 Current accuracy Output current Between ICs ± ± Current accuracy Output current Between ICs ± ± ...
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... Gray scale clock terminal. PWCLK Reference clock for grey scale PWM counter. SDO Serial data out terminal R-EXT Input terminal of an external resistor for constant current programing V Supply voltage terminal DD Doc ID 15819 Rev 5 STP1612PW05 OUT0 OUT0 OUT0 OUT1 OUT1 OUT1 OUT2 ...
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... STP1612PW05 3 Electrical ratings 3.1 Absolute maximum ratings Stressing the device above the rating listed in the the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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... If the device is connected in cascade, it may not be possible achieve the maximum data transfer. Please considered the timings carefully. 8/41 Test conditions Min. 3.0 3 0.7 V GND 3 5 (1) Cascade operation Doc ID 15819 Rev 5 STP1612PW05 Typ. Max. Unit - 5 ...
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... STP1612PW05 4 Electrical characteristics V = 3.3 V ± 10 Table 8. Electrical characteristics Symbol Characteristics V Maximum output voltage O I OUT0~OUT115 OUT Output I SDO OH,SDO current I SDO OL,SDO V Input voltage “H” level IH V Input voltage “L” level IL I Output leakage current Output voltage SDO ...
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... Electrical characteristics Figure 3. Test circuit for electrical characteristics =GND IL 10/ SDI Function CLK Generator LE PWCLK R Logic input waveform R ext Doc ID 15819 Rev 5 STP1612PW05 OUT OUT0 . OUT15 I OL SDO GND - EXT I OH ...
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... STP1612PW05 Table 9. Switching characteristics (V Symbol Characteristics t SU0 t Setup time SU1 t SU2 t H0 Hold time PD0 Propagation t PD1 delay time t PD2 t DL1 Stagger delay t DL2 time t DL3 t w(L) t Pulse width w( CLK) t w(PWCLK) t Output rise time of output ports ON t Output fall time of output ports ...
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... PWCLK Figure 4, where SDI Function CLK Generator CLK GND Logic input waveform R ext Doc ID 15819 Rev 5 STP1612PW05 Min. Typ 3 120 V = GND 460 Ω R ext LED = 152 Ω ...
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... STP1612PW05 5 Timing waveform Figure 5. Timing waveform PWCLK PWCLK PWCLK Doc ID 15819 Rev 5 Timing waveform 13/41 ...
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... Detect the status of each output’s LED Move out “error status code” outputs to High the shift registers Serial data are transferred to the High “configuration register” High Set to 16-bit the shift register length Doc ID 15819 Rev 5 STP1612PW05 Description ...
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... STP1612PW05 Figure 6. Timing diagram Doc ID 15819 Rev 5 Principle of operation 15/41 ...
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... PWCLK plus once of LSB 6-bit PWM counting 11 PWM counting 0 Auto-synchronization 1 Manual synchronization 00000000 Adjust the current value set by R-EXT over 256 ~ steps 11111111 0 Disable (2) Enable (output channels OFF if temperature 1 overcomes 150°C) (3) 0 Enable 1 Disable Doc ID 15819 Rev 5 STP1612PW05 Default value 10101011 0 0 ...
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... STP1612PW05 8 Grey scales data loading The STP1612PW05 is able to manage a gray-scale depth bits for each output, exploiting an e-PWM algorithm. The bit D of the configuration register is used to select the grey-scale loading. Its value can be set to “0” for 12 bits or “1” for 16 bits. By default set to “0”. ...
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... Setting the PWM gray scale counter 9 Setting the PWM gray scale counter STP1612PW05 provides a 12-bit or 16-bit PWM color depth. Each serial data input will be implemented according to the e-PWM algorithm. 9.1 PWM data synchronization STP1612PW05 defines the different counting algorithms that support e-PWM, technology, (scrambled PWM) ...
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... STP1612PW05 9.2 Synchronization for PWM counting The data synchronization between the incoming data flow and the output channels is managed through the bit A within the configuration register. If the bit A is set to “0” the device performs itself the data synchronization: when all the new data are loaded with a “ ...
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... Error detection conditions 10 Error detection conditions The STP1612PW05 can detect open channels (OD) and LED short-circuits (SD). The detection circuitry performs open- and short-circuit detection simultaneously and needs that all channels must be on. However the short test duration (0.5 µs typ) does not impact the image quality ...
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... STP1612PW05 Figure 12. Detection circuit 16 STP1612PW05 Doc ID 15819 Rev 5 Error detection conditions 21/41 ...
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... Iout (mA) (1) Iout ( 0101011 (default) Led drop Doc ID 15819 Rev 5 STP1612PW05 . ext = 69.6 kΩ set to ext Rext (kΩ) 238.2 142.2 69.6 34.70 22.94 13.72 11.40 8.63 ...
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... STP1612PW05 12 Constant current The STP1612PW05 assures nearly no variation in current both from channel to channel and from IC to IC. The typical variation of the current between channels of the same IC is ±1.5%, whereas the variation between ICs is around ±3%. Moreover the current characteristic of the output stage is flat (see ...
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... In other words, these bits can be looked as a floating number with 1-bit exponent HC and 7- bit mantissa DA6~DA0. 24/ DA6 DA5 DA4x2 + DA3x2 + DA2x2 Doc ID 15819 Rev 5 STP1612PW05 Configuration register DA4 DA3 DA2 DA1 DA0 DA1x2 + DA0x2 LSB ...
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... STP1612PW05 For example 1.25 (256x1.25-128)/ the D in binary form would be 1x2 +0x2 The bit 9 to bit 2 of the configuration register are set to 8’b1100,0000. 14 Delay time of staggered output This feature prevents large inrush current from the power line and reduces the bypass capacitors ...
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... Configuration Register is 0. When the PWCLK is active again and new serial data are moved in, the driver resumes to work after resetting the internal counters and comparators. Figure 17. Time-out alert application scheme PWCLK STP1612PW05 26/41 500K STP1612PW05 Doc ID 15819 Rev 5 STP1612PW05 STP1612PW05 STP1612PW05 ...
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... STP1612PW05 17 Application information 17.1 LED supply voltage (VLED) The choice of the LED supply voltage (VLED) must be carried out considering several parameters: ● The voltage drop across current generators (V the desired current (see ● The maximum LED forward voltage (V ● The maximum power that can be dissipated by the package under the application ambient conditions ● ...
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... O,blue O,blue O,blue O,blue O,blue O,blue O,blue O,blue O,blue O,blue O,blue O,blue O,blue O,blue SDO SDO SDO SDO SDO SDO STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 to SDI of to SDI of ...
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... OUT15 OUT15 OUT15 blue O, blue O, blue O, blue O, blue O, blue SDO SDO STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 STP1612PW05 to SDI of to SDI of the next the next device device …… …… …… …… …… …… V ...
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... 45875 = 45875 value, n value, n 17.3 Multi device application In a typical application several devices are used to drive the LEDs. In this case more STP1612PW05 can be connected together in a daisy chain configuration Figure 21 as shown in Figure 21. STP1612PW05 in daisy chain configuration VLED VLED µC µC 30/41 ...
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... STP1612PW05 18 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: ECOPACK trademark. Table 15. TSSOP24 mechanical data Dim ...
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... TSSOP24 tape and reel Dim Figure 23. TSSOP24 reel dimensions 32/41 mm. Min. Typ Max. - 330 12.8 - 13.2 20 22.4 6 8.2 - 8.4 1.7 - 1.9 3.9 - 4.1 11.9 - 12.1 Doc ID 15819 Rev 5 STP1612PW05 inch 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 ...
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... STP1612PW05 Table 17. SO-24 mechanical data Dim ( ddd 1. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs shall not exceed 0.15mm per side. mm. Min. Typ Max. 2.35 2.65 0.1 0.3 0.33 0.51 0.23 0.32 15.2 15.6 7.4 7.6 1.27 10 10.65 0.25 0.75 0.4 1. 0.1 Doc ID 15819 Rev 5 ...
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... Package mechanical data Figure 24. SO-24 package dimensions 34/41 Doc ID 15819 Rev 5 STP1612PW05 ...
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... STP1612PW05 Table 18. SO-24 tape and reel Dim Figure 25. SO-24 reel dimensions mm. Min. Typ Max. - 330 12.8 - 13.2 20 30.4 10.8 - 11.0 15.7 - 15.9 2.9 - 3.1 3.9 - 4.1 11.9 - 12.1 Doc ID 15819 Rev 5 Package mechanical data inch 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 ...
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... 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 15819 Rev 5 STP1612PW05 inch Min. Typ. Max. 0.047 0.004 0.006 0.031 0.039 0.041 0.007 0.012 0.004 0.0089 0.303 0.307 0.311 0.185 0.197 0.209 0.244 0.252 0.260 0.169 0.173 0.177 0.114 0.126 0.138 0.0256 0° 8° ...
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... STP1612PW05 Table 20. QFN24 (4x4) mechanical data Dim mm. Min. Typ Max. 1.00 0.00 0.05 0.18 0.30 3.9 4.1 2.6 2.8 3.9 4.1 2.6 2.8 0.50 0.40 0.60 Doc ID 15819 Rev 5 Package mechanical data mils Min. Typ. Max. 39.4 0.0 2.0 7.1 11.8 153.5 161.4 76.8 88.6 153.5 161.4 76.8 88.6 19.7 15.7 23.6 37/41 ...
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... Package mechanical data Figure 27. QFN24 (4x4) mechanical drawing 38/41 Doc ID 15819 Rev 5 STP1612PW05 ...
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... STP1612PW05 Tape & Reel QFNxx/DFNxx (4x4) MECHANICAL DATA DIM mm. MIN. TYP MAX. 330 12.8 13.2 20.2 99 101 14.4 4.35 4.35 1 Doc ID 15819 Rev 5 Package mechanical data inch MIN. TYP. MAX. 12.992 0.504 0.519 0.795 3.898 3.976 0.567 0.171 0.171 0.043 0.157 ...
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... Initial release. Section 9.2 on page 19 2 Updated Figure 2 on page 6 Updated: 3 Figure 17 on page 26 Added: Section 11 on page 22 4 Updated Table 17 on page 33 5 Updated Doc ID 15819 Rev 5 STP1612PW05 Changes Table 11 on page 14 and Table 20 on page 37 and Figure 24 on page 34 and ...
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... STP1612PW05 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. ...