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TLC5921 Datasheet(PDF) 6 Page - Texas Instruments |
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TLC5921 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 15 page TLC5921 LED DRIVER SLLS390 – SEPTEMBER 1999 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics, MIN/MAX: VCC = 4.5 V to 5.5 V, TA = – 20 to 85°C TYP: VCC = 5 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOH High-level output voltage IOH = – 1 mA VCC –0.5V V VOL Low-level output voltage IOL = 1 mA 0.5 V II Input current VI = VCC or GND (except BLANK, XLAT) ± 1 µA Input signal is static, VO = 1 V, R(IREF) = 10 kΩ, All output bits turn off 3 4.5 Input signal is static, VO = 1 V RIREF = 1300 Ω, All output bits turn off 7 9 ICC Supply current Input signal is static, VO = 1 V, R(IREF) = 640 Ω, All output bits turn off 11 15 mA Data transfer, VO = 1 V, R(IREF) = 1300 Ω, All output bits turn on 15 20 Data transfer, VO = 1 V, R(IREF) = 640 Ω, All output bits turn on 35 50 IOL(C1) Constant output current VO = 1 V, R(IREF) = 1300 Ω 35 40 45 mA IOL(C2) Constant output current VO = 1 V R(IREF) = 640 Ω 70 80 90 mA Ilk Constant output leakage current OUT0 to OUT15 (V(OUTn) = 15 V) 0.1 µA Ilkg Constant output leakage current XDOWN (5V pullup) 1 µA ∆IO(LC) Constant output current error between bit VO = 1 V, R(IREF) = 640 Ω, All output bits turn on ± 1 ± 4 % I ∆O(LC1) Changes in constant output current depend on supply voltage Vref = 1.3 V ± 1 ± 4 %/V I ∆O(LC2) Changes in constant output current depend on output voltage VO = 1 V to 3 V, R(IREF) = 1300 Ω, Vref = 1.3 V, 1 bit output turn on ± 2 ± 6 %/V T(tsd) TSD detection temperature Junction temperature 150 160 170 °C Vref Reference voltage R(IREF) = 640 Ω 1.3 V V(LEDDET) LED disconnection detection voltage 0.3 V switching characteristics, CL = 15 pF PARAMETER TEST CONDITIONS MIN TYP MAX UNIT t Rise time SOUT 15 20 ns tr Rise time OUTn (see Figure 1) 300 ns tf Fall time SOUT 5 15 ns tf Fall time OUTn 300 ns BLANK ↑ – OUTn 400 650 BLANK ↓ – OUTn 300 400 tpd Propagation delay time BLANK ↑ – XDOWN (see Note 2) 600 1000 ns BLANK ↓ – XDOWN (see Note 2) 500 1000 SCLK – SOUT 10 20 35 NOTE 2: At external resistor 5 k Ω |
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