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16-bit Constant Current LED Driver with Error Detection

Version:A.001

Page 8

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DM137

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

EN-to-OUT15

⎯

18

⎯

LAT-to-OUT15

⎯

20

⎯

CLK-to-DAO (SDO = ‘L’)

⎯

22

⎯

Propagation Delay

(‘L’ to ‘H’)

CLK-to-DAO (SDO = ‘H’)

tpLH

⎯

15

⎯

EN-to-OUT15

⎯

22

⎯

LAT-to-OUT15

⎯

15

⎯

CLK-to-DAO (SDO = ‘L’)

⎯

20

⎯

Propagation Delay

(‘H’ to ‘L’)

CLK-to-DAO (SDO = ‘H’)

tpHL

⎯

14

⎯

Output Current Rise Time

tor

⎯

4.0

⎯

Output Current Fall Time

tof

⎯

6.0

⎯

tod

VIH = VCC

VIL = GND

Rrext = 2.9 K

Ω

VL = 5.0 V

CL

*1

= 13 pF

Ra = 470

Ω

⎯

2.0

⎯

ns

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

EN-to-OUT15

⎯

35

⎯

LAT-to-OUT15

⎯

27

⎯

CLK-to-DAO (SDO = ‘L’)

⎯

20

⎯

Propagation Delay

(‘L’ to ‘H’)

CLK-to-DAO (SDO = ‘H’)

tpLH

⎯

18

⎯

EN-to-OUT15

⎯

24

⎯

LAT-to-OUT15

⎯

31

⎯

CLK-to-DAO (SDO = ‘L’)

⎯

18

⎯

Propagation Delay

(‘H’ to ‘L’)

CLK-to-DAO (SDO = ‘H’)

tpHL

⎯

19

⎯

Output Current Rise Time

tor

⎯

43

⎯

Output Current Fall Time

tof

⎯

9.0

⎯

tod

VIH = VCC

VIL = GND

Rrext = 2.9 K

Ω

VL = 5.0 V

CL

*1

= 13 pF

Ra = 470

Ω

⎯

2.8

⎯

ns