AS1109 EB austriamicrosystems, AS1109 EB Datasheet
AS1109 EB
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AS1109 EB Summary of contents
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... Figure 1. Main Diagram and Pin Assignments +V LED OUTN0 OUTN1 OUTN2 OUTN3 OUTN4 OUTN5 OUTN6 OUTN7 SDI CLK LD www.austriamicrosystems.com/LED-Driver-ICs/AS1109 2 Key Features 8 Constant-Current Output Channels Excellent Output Current Accuracy - Between Channels: ±2% - Between AS1109 Devices: ±2% Output Current Per Channel: 0.5 to 100mA Controlled In-Rush Current ...
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... Application Information .......................................................................................................................................................... 17 Error Detection ......................................................................................................................................................................................... 17 Error Detection On-The-Fly ................................................................................................................................................................ 17 Error Detection with Low-Current Diagnosis Mode ............................................................................................................................. 17 Cascading Devices .................................................................................................................................................................................. 18 Constant Current ...................................................................................................................................................................................... 19 Adjusting Output Current .......................................................................................................................................................................... 19 Package Power Dissipation ..................................................................................................................................................................... 19 Delayed Outputs ...................................................................................................................................................................................... 19 Switching-Noise Reduction ...................................................................................................................................................................... 19 Load Supply Voltage ................................................................................................................................................................................ 19 10 Package Drawings and Markings ........................................................................................................................................ 21 11 Ordering Information ............................................................................................................................................................ 25 www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Revision 1. ...
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... CLK 5:12 3:10 OUTN0 OEN 14 12 SDO 15 13 REXT www.austriamicrosystems.com/LED-Driver-ICs/AS1109 SDI GND VDD REXT 16 16 VDD CLK 1 15 REXT 14 SDO LD 2 AS1109 13 OEN 16-pin QFN 12 OUTN7 OUTN0 3 11 OUTN6 OUTN1 4 10 OUTN5 5 9 OUTN4 Description Ground Serial Data Input Serial Data Clock. The rising edge of the CLK signal is used to clock data into and at the falling edge out of the AS1109 shift register ...
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... Input Current (latch-up immunity) Electrostatic Discharge Electrostatic Discharge HBM Temperature Ranges and Storage Conditions Thermal Resistance Θ JA Storage Temperature Range Package Body Temperature Humidity non-condensing Moisture Sensitive Level * Min/max values are load dependent. www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Section 6 Electrical Characteristics on page 5 Min Max Units -0 -0 0.4 ...
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... R Pulldown Resistance IN(DOWN) * Open Error Detection Threshold Voltage V THL * Short Error Detection Threshold Voltage V THH T Overtemperature Threshold Flag OV1 www.austriamicrosystems.com/LED-Driver-ICs/AS1109 = 5V 25°C (unless otherwise specified). DD AMB Condition Device fully functional up to 125°C OUTN0:7 OUTN0: (see Figure 8) DD SDO SDO CLK, OEN, LD, SDI OEN = ...
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... REXT2 multiple AS1109 devices are cascaded and t caded LED drivers. Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Condition R = Open‚ OUTN0:7 = Off EXT R = 744Ω‚ OUTN0:7 = Off ...
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... REXT = 372Ω; VDS = 0.6V 0.5 REXT = 186Ω; VDS = 0.8V 0 REXT = 744Ω; -0.5 VDS = 0.5V -1 -50 - Temperature (°C) www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Figure 4. Relative Output Current Error vs. V Iout/Iout@VDD = 1.5 1 0.5 REXT = 744Ω; VDS = 0.5V 0 -0.5 REXT = 372Ω; VDS = 0.6V -1 -1.5 -2 ...
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... The MSB is the first bit to be clocked in. In error-detection mode the shift register will latch-in the corresponding error data of temperature-, open-, and short-error register with each falling edge of LD. www.austriamicrosystems.com/LED-Driver-ICs/AS1109 OUTN3 ...
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... This section contains timing diagrams referenced in other sections of this data sheet. Figure 10. Normal Mode Timing Diagram t W(CLK) CLK 50 SU(D) H(D) SDI 50% SDO LD t SU(L) OEN OUTNx Figure 11. Output Delay Timing Diagram OEN OUTN0 OUTN1 OUTN7 www.austriamicrosystems.com/LED-Driver-ICs/AS1109 50% 50% 50% 50 W(L) 50% 50% t H(L) OEN Low = Output Enabled 50 W(OE) 50 90% ...
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... Figure 13. Data Input Example Timing Diagram Time = CLK SDI OEN OUTN0 OUTN1 OUTN2 OUTN3 OUTN4 OUTN5 OUTN6 OUTN7 www.austriamicrosystems.com/LED-Driver-ICs/AS1109 8 CLK Pulses t SU(D) Data Bit Data Bit Data Bit Data Bit Data Bit Old Data Old Data Old Data Old Data Old Data ...
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... SDO of the last device in the chain. This means it is not possible to identify which device in the chain produced the error. Therefore global error occurs, the detailed error report can be run to identify which AS1109, or LED produced the error. Note: When no error has occurred, the detailed error report can be skipped, setting LD and subsequently OEN low. www.austriamicrosystems.com/LED-Driver-ICs/AS1109 t t ...
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... OEN and stored internally. Table 8. Overtemperature Modes Effective Output Output Port State Point Conditions Don’t Care Temperature > T Don’t Care Temperature < T www.austriamicrosystems.com/LED-Driver-ICs/AS1109 and V . The open LED status is aquired at the rising edge of DS THL Detected Open-LED Error Status Code < ...
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... The detailed temperature warning report would look like this: XXXXXXX1 XXXXXXX1 XXXXXXX1 XXXXXXX0 XXXXXXX1 The 0 in the detailed temperature warning report indicates that IC4 is the device with the over-temperature condition. Note actual report there are no spaces in the output. www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Detailed Error Report Readout t H(L) ...
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... Comparing this report with the input data indicates that IC2 is the device with two open LEDs at position 4 and 5 and IC4 with an open LED at second position. For such a test it is recommended to enter low-current diagnostic mode first reduce onscreen flickering. Note actual report there are no spaces in the output. LEDs turned off during test time cannot be tested. www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Detailed Error Report Readout t H(L) t ...
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... Low-current diagnostic mode can be initiated via 3 clock pulses during error-detection mode. After the falling edge of LD, a test pattern displaying all 1s can be written to the shift register which will be used for the next error-detection test. On the next falling edge of OEN, current is reduced to I els and the detailed error report can be read out entering error-detection mode. www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Detailed Error Report Readout t H(L) ...
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... AS1109 devices are in a chain. At the rising edge of the 4th clock pulse the shutdown bit will be read out and the AS1109 will shutdown or wakeup. Note: In shutdown mode the supply current drops down to typically 3µA. Figure 19. Shutdown Mode Timing Diagram OEN LD t SU(ERROR) CLK SDI SDO www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Global Flag Readout Load Internal all 1s Test Pattern (optional) t SU(ERROR) t H(L) t GSW(ERROR) ...
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... SDI SDO 3x Clocks Low- Current Mode CLK OEN LD Load Internal All 1s Test Pattern Current ≤ 100mA www.austriamicrosystems.com/LED-Driver-ICs/AS1109 (see Figure 20). LEDs that are turned off cannot be tested and their digits Data2 Data3 T Error Code GEF GEF Data1 Clock for Error Mode 0x/1x/2x ...
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... Note: When n*AS1109 devices are in one chain, n*8 clock pulses are needed to latch-in the input data. Figure 23. Cascading AS1109 Devices SDI AS1109 #1 SDI CLK LD OEN CLK LD OEN www.austriamicrosystems.com/LED-Driver-ICs/AS1109 2µs Low-Current Diagnosis Mode Data2 Error Code GEF from Test Pattern Clock for Error Mode 1x/2x Mode 1024x Rising Edge of OEN Acquisition of Error Status Falling Edge of LD ...
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... The voltage reducer allows DROP LED F DROP Note: Resistors or zener diodes can be used as a voltage reducer as shown in www.austriamicrosystems.com/LED-Driver-ICs/AS1109 (see Figure 5 on page ). F ) set by external resistor ( sink a current (I EXT V = 1.253V REXT (if the other end connected to ground) EXT = I * ...
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... AS1109 Datasheet - Figure 24. Voltage Reducer using Resistor (Left) and Zener Diode (Right) Voltage Supply } V DROP V LED AS1109 www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Voltage Supply { V DROP AS1109 Revision 1.20 V LED ...
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... AS1109 Datasheet - Package Drawings and Markings Figure 25. AS1109 Markings 16-pin SOIC-150 Table 9. Packaging Code YYWWRZZ YY last two digits of the current year www.austriamicrosystems.com/LED-Driver-ICs/AS1109 16-pin QSOP-150 manufacturing week plant identifier Revision 1.20 16-pin QFN 4x4mm ZZ free choice / traceability code ...
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... AS1109 Datasheet - Figure 26. 16-pin SOIC-150 Package www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Revision 1. ...
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... AS1109 Datasheet - Figure 27. 16-pin QSOP-150 Package www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Revision 1. ...
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... AS1109 Datasheet - Figure 28. 16-pin QFN 4x4mm Packages www.austriamicrosystems.com/LED-Driver-ICs/AS1109 Revision 1. ...
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... Table 10. Description Delivery Form Tape and Reel Tape and Reel Tape and Reel http://www.austriamicrosystems.com/ICdirect mailto:sales@austriamicrosystems.com Revision 1.20 Package Tubes 16-pin SOIC-150 16-pin SOIC-150 Tubes 16-pin QSOP-150 16-pin QSOP-150 Tray 16-pin QFN (4x4mm) 16-pin QFN (4x4mm) ...
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... AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application ...