DM13A-E datasheet(7/23 Pages) SITI

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Low Power 16-bit Constant Current LED Driver

Version:Pre.003

Page 6

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DM13A-E

Electrical Characteristics (VDD = 5.0 V, Ta = 25C unless otherwise noted)

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

Input Voltage “H” Level

VIH

CMOS logic level

0.8VDD



VDD

Input Voltage “L” Level

VIL

CMOS logic level

GND



0.2VDD

Output Current Skew

(Channel-to-Channel)*1

IOL1

VOUT = 0.5V

Rrext = 22K



0.7

1.5

VOUT = 0.5V

Rrext = 4K



1.1

1.8

VOUT = 0.5V

Rrext = 1K



2

3

Output Current Skew

(Chip-to-Chip) *2

IOL2

VOUT = 0.5V

Rrext = 22K



2.8

6

VOUT = 0.5V

Rrext = 4K



1.8

4

VOUT = 0.5V

Rrext = 1K



1.4

3

Output Voltage Regulation

% / VOUT

VOUT = 0.5 V ~ 3 V (DC)

Rrext = 4 K





0.1

0.5

% / V

Supply Voltage Regulation

% / VDD

VDD = 3.3 V ~5 V (DC)

Rrext = 4 K





0.1

0.5

Output Current Ripple

(due to output voltage ripple)

IRIP1

VOUT=1.5V

0.1V@5MHz

Rrext = 4 K



0.5

1

Output Current Ripple

(due to supply voltage ripple)

IRIP2

VDD=4V

0.1V@5MHz

Rrext = 4 K



0.7

1.2

Average Output Current Skew

(due to supply voltage ripple)

IAO

VDD=4V

0.1V@5MHz

Rrext = 4 K



0.1

0.5

Supply Current

IDD(off)

power on

all pins are open

unless VDD and GND



IDD(off)

input signal is static

Rrext = 4K



all outputs turn off



4.5

IDD(on)

input signal is static

Rrext = 4K



all outputs turn on



4.5

*1 Channel-to-channel skew is defined as the ratio between (any I

OUT ) of chip and (the average Iout) of chip.

Equation:

Skew(IOL1)={(IOUTn)/[ (IOUTmax + IOUTmin)/2]}-1

*2 Chip-to-chip skew is defined as the ratio between (the average of OUT0 to OUT15 ) and (the reference Iout).

Equation:

Skew(IOL2)={[(IOUT0+IOUT1+……IOUT14+IOUT15)/16]/(Iref.)}-1 ; Iref refer to page 10

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