STP1612PW05MTR STMicroelectronics, STP1612PW05MTR Datasheet
STP1612PW05MTR
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STP1612PW05MTR Summary of contents
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... RGB backlighting ■ Special lighting Table 1. Device summary Order code STP1612PW05QTR STP1612PW05MTR STP1612PW05TTR STP1612PW05XTTR February 2011 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 16-channel LED driver with 16-bit PWM, 8-bit gain and full LED error detection ...
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Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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STP1612PW05 16 Time-out alert of GCLK disconnection . . . . . . . . . . . . . . . . . . . . . . . . . 26 17 Application information . . . . ...
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Block diagram 1 Block diagram Figure 1. Block diagram SDI CLK Serial interface LE SDO CTRL command CTRL logic TSD Shift register dual size mode (16 or 256 bit) 4/41 GND VDD UVLO & POR 16-bit Configuration and Register PWM ...
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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 ± 6% ...
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Summary description 2.1 Pin connection and description Figure 2. Pin connection GND GND GND SDI SDI SDI CLK CLK CLK OUT0 OUT0 OUT0 OUT1 OUT1 OUT1 OUT2 OUT2 OUT2 OUT3 OUT3 OUT3 OUT4 OUT4 OUT4 OUT5 OUT5 ...
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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 ...
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Electrical ratings 3.3 Recommended operating conditions Table 7. Recommended operating conditions at 25 °C Symbol Parameter V Supply voltage DD V Output voltage O I Output current, OUTn O I Output current, SDO OH,SDO I Output current, SDO OL,SDO V ...
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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 ...
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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 I ...
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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 ...
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Electrical characteristics Table 10. Switching characteristics (V Symbol Characteristics t SU0 t Setup time SU1 t SU2 t H0 Hold time PD0 Propagation delay t PD1 time t PD2 t DL1 Stagger delay t DL2 time t ...
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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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Principle of operation 6 Principle of operation Table 11. Control command Command name Data latch Global latch Read configuration Enable “error detection” Read “error status code” Write configuration Reset to 16-bit shift register length 14/41 Signals combination Number of CLK ...
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STP1612PW05 Figure 6. Timing diagram Doc ID 15819 Rev 5 Principle of operation 15/41 ...
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Configuration register 7 Configuration register Table 12. Configuration register Bit Attribute Definition Shift register 15 Read/Write length Thermal error 14 Read flag PWM counter 13 Read/Write (12/16 bit) PWM counting 12-11 Read/Write mode selection PWM data 10 Read/Write synchronizatio n ...
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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 ...
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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 ...
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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 ...
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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 ...
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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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Setting output current 11 Setting output current The output current ( calculated from the equation 1. R-EXT Whereas R is the resistance of the external resistor connected to R-EXT terminal ext and V ...
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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 ...
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Current gain adjustment 13 Current gain adjustment Figure 16. Gain vs DA6 - DA0 The bit 9 to bit 2 of the configuration register set the gain of output current, i.e., G. Being 8- bit in total, ranging from 8’b00000000 ...
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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 ...
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Time-out alert of GCLK disconnection 16 Time-out alert of GCLK disconnection When the PWCLK signal is disconnected for around 1 second, all output ports will be turned off automatically. This function will protect the LED display system from staying ON ...
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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 ...
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Application information To avoid these drawbacks, two different approaches are possible: Figure 18 ● shows an application with only one voltage rail (VLED). A resistor in series to each red LEDs is added. In this way, the voltage excess drops ...
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STP1612PW05 Figure 19. Solution with separated supply voltage for red LEDs to SDI of to SDI of the next the next device device from SDO of from SDO of the previous the previous device device O,green O,green ...
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Application information Figure 20. Example of brightness setting 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 ...
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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 ...
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Package mechanical data Table 16. TSSOP24 tape and reel Dim Figure 23. TSSOP24 reel dimensions 32/41 mm. Min. Typ Max. - 330 12.8 - 13.2 20 ...
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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 ...
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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 - ...
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Package mechanical data Table 19. TSSOP24 exposed pad Dim Figure 26. TSSOP24 package dimensions 36/41 mm Min. Typ. Max. 1.2 0.15 0.8 1 1.05 0.19 0.30 0.09 ...
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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 ...
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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 ...
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Revision history 19 Revision history Table 21. Document revision history Date 17-Jun-2009 10-Aug-2009 29-Oct-2009 18-Dec-2009 08-Feb-2011 40/41 Revision 1 Initial release. Section 9.2 on page 19 2 Updated Figure 2 on page 6 Updated: 3 Figure 17 on page 26 ...
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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. ...