Datasheet AL58221 (Diodes) - 8

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描述12-Channel LED Driver with 12-bit APDM Control
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AL58221. Switching Characteristics. Switching Characteristics Test Circuit. VDD. Rrext. www.diodes.com

AL58221 Switching Characteristics Switching Characteristics Test Circuit VDD Rrext www.diodes.com

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AL58221 Switching Characteristics
(VDD = 3.3V @TA = +25°C, unless otherwise specified.) (Guarantee by design)

CHARACTERISTIC SYMBOL CONDITION MIN. TYP. MAX. UNIT DCKI-to-DO tpLH1 ⎯ 34 39 DCKI-to-DCKO tpLH2 ⎯ 7.9 19 Propagation Delay (‘L to ‘H’) GCKI-to-GCKO tpLH3 ⎯ 12 19 DI-to-DO @ Internal-latch tpLH4 ⎯ 18 ⎯ control cycle DCKI-to-DO tpHL1 ⎯ 40 59 VIH = VDD Propagation Delay (‘H’ to ‘L’) DCKI-to-DCKO tpHL2 ⎯ VIL = GND 8.2 19 Rrext = 2340 GCKI-to-GCKO tpHL3 ⎯ 10.5 19 VL =5.0 V ns DCKI tw(DCK) RL = 150 50 ⎯ 7200 CL = 13 pF GCKI tw(GCK) 50 ⎯ ⎯ Pulse Duration DI @ Internal-latch twH control cycle (DI) 70 ⎯ ⎯ DI @ Internal-latch twL control cycle (DI) 230 ⎯ ⎯ Setup Time DI tsu(D) 10 ⎯ ⎯ Hold Time DI th(D) 10 ⎯ ⎯ DI Retiming @ Internal-latch control cycle Tw_re ⎯ 90 110 130 Internal-latch Start Time Tstart ⎯ 220 ⎯ ⎯ us Internal-latch Stop Time (Note 20) Tstop ⎯ 200 ⎯ ⎯ ns DCKI Freq. FDCKI ⎯ 0.07 ⎯ 10 MHz Internal OSC Freq. FOSC ⎯ 6.25 7.95 9.65 MHz GCKI Freq. FGCKI ⎯ ⎯ ⎯ 10 MHz Note: 20. Tstop (min.) for cascade application must > “200ns + N*10ns” (N is the cascade number of drivers)
Switching Characteristics Test Circuit VL VDD RL
OUTn REXT
Rrext
DO
CL CL
Switching Characteristics Test Circuit

AL58221 8 of 26 April 2024 Document number: DS46476 Rev. 2 - 2
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