16-bit Constant Current LED Driver with Error Detection

Version:A.002

Page 8

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DM13G

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

ENB-to-OUT0

⎯

26

⎯

LAT-to-OUT0

⎯

31

⎯

Propagation Delay

(‘L to ‘H’)

CLK-to-DAO

tpLH

⎯

19

⎯

ENB-to-OUT0

⎯

31

⎯

LAT-to-OUT0

⎯

32

⎯

Propagation Delay

(‘H’ to ‘L’)

CLK-to-DAO

tpHL

⎯

20

⎯

Output Current Rise Time

tor

⎯

10

⎯

Output Current Fall Time

tof

⎯

10

⎯

tod

VIH = VCC

VIL = GND

Rrext = 3.9 K

Ω

VL = 5.0 V

RL = 0.18 K

Ω

CL = 13 pF

Ra = 500

Ω

⎯

3

⎯

ns

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

ENB-to-OUT0

⎯

36

⎯

LAT-to-OUT0

⎯

37

⎯

Propagation Delay

(‘L to ‘H’)

CLK-to-DAO

tpLH

⎯

22

⎯

ENB-to-OUT0

⎯

35

⎯

LAT-to-OUT0

⎯

37

⎯

Propagation Delay

(‘H’ to ‘L’)

CLK-to-DAO

tpHL

⎯

23

⎯

Output Current Rise Time

tor

⎯

14

⎯

Output Current Fall Time

tof

⎯

14

⎯

tod

VIH = VCC

VIL = GND

Rrext = 3.9 K

Ω

VL = 5 V

RL = 0.18 K

Ω

CL = 13 pF

Ra = 500

Ω

⎯

3

⎯

ns

OUTn

DAO

REXT

ALARM

VCC

Rrext

CL

CL

RL

VL

Switching Characteristics Test Circuit

VCC

Ra