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TLC5928DBQR Datasheet(PDF) 4 Page - Texas Instruments |
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TLC5928DBQR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 32 page D (%)= - 1 I OUTn (I +I +...+I +I ) OUT0 OUT1 OUT15 OUT14 16 ´ 100 D (%)= IdealOutputCurrent - (IdealOutputCurrent) (I +I +...I +I ) OUT0 OUT1 OUT14 OUT15 16 ´ 100 I =42 ´ OUT(IDEAL) 1.20 R IREF 100 (I atV =3.0V) OUTn CC (I atV =5.5V) (I atV =3.0V) OUTn CC OUTn CC - 5.5V 3V - D (%/V)= ´ 100 3V 1V - ´ (I atV =1V) OUTn OUTn (I atV =3V) (I atV =1V) - OUTn OUTn OUTn OUTn D (%/V)= . TLC5928 SBVS120E – JULY 2008 – REVISED JANUARY 2011 www.ti.com ELECTRICAL CHARACTERISTICS At VCC = 3.0 V to 5.5 V and TA = –40°C to +85°C. Typical values at VCC = 3.3 V and TA = +25°C, unless otherwise noted. TLC5928 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOH High-level output voltage IOH = –1 mA at SOUT VCC – 0.4 VCC V VOL Low-level output voltage IOL = 1 mA at SOUT 0 0.4 V IIN Input current VIN = VCC or GND at SIN, SCLK, LAT, and BLANK –1 1 mA SIN/SCLK/LAT = low, BLANK = high, VOUTn = 1 V, ICC1 1 2 mA RIREF = 27 kΩ SIN/SCLK/LAT = low, BLANK = high, VOUTn = 1 V, ICC2 4.5 8 mA RIREF = 3 kΩ Supply current (VCC) SIN/SCLK/LAT/BLANK = low, VOUTn = 1 V, ICC3 7 18 mA RIREF = 3 kΩ SIN/SCLK/LAT/BLANK = low, VOUTn = 1 V, ICC4 16 40 mA RIREF = 1.5 kΩ All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ IOLC Constant output current 31 34 37 mA (see Figure 6), at OUT0 to OUT15 All OUTn for constant-current driver, all outputs off IOLKG Output leakage current BLANK = high, VOUTn = VOUTfix = 17 V, RIREF = 1.5 kΩ 0.1 mA (see Figure 6), at OUT0 to OUT15 Constant-current error All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ ΔIOLC ±1 ±3 % (channel-to-channel)(1) at OUT0 to OUT15 Constant-current error All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ ΔIOLC1 ±1 ±6 % (device-to-device)(2) at OUT0 to OUT15 All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ ΔIOLC2 Line regulation(3) ±0.5 ±1 %/V at OUT0 to OUT15 All OUTn = ON, VOUTn = 1 V to 3V, VOUTfix = 1 V, ΔIOLC3 Load regulation(4) ±1 ±3 %/V RIREF = 1.5 kΩ, at OUT0 to OUT15 T(PTW) Pre-thermal warning threshold Junction temperature(5) +125 +138 +150 °C VLOD LED open detection threshold All OUTn = ON 0.25 0.30 0.35 V VIREF Reference voltage output RIREF = 1.5 kΩ 1.16 1.20 1.24 V (1) The deviation of each output from the average of OUT0 –OUT15 constant-current. Deviation is calculated by the formula: (2) The deviation of the OUT0 –OUT15 constant-current average from the ideal constant-current value. Deviation is calculated by the following formula: Ideal current is calculated by the formula: (3) Line regulation is calculated by this equation: (4) Load regulation is calculated by the equation: (5) Not tested. Specified by design. 4 Submit Documentation Feedback © 2008–2011, Texas Instruments Incorporated Product Folder Link(s): TLC5928 |
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