Panasonic DN8667NS Datasheet

1

Others

■ Overview

The DN8667NS is a semiconductor integrated circuit
which incorporates a 8-bit shift register, a latch driver and
a constant current driver to satisfy the demand for equal­ization of LED panel brightness. It also incorporates the
serial-in and serial-out/parallel-out functions. It employs
the Bi-CMOS process : The 8-step shift register block
and latch block consist of CMOS while the 8-step parallel
driver block is bipolar.

■ Features

•

Serial-in, serial-out/parallel-out

•

Cascade connection possible

•

Constant current output (0 to 100 mA able to be set by

one external resistor)

•

Output-forced ON/OFF terminal attached (EN)

•

Input/Output CMOS compatible

■ Application

•

LED panel drive

DN8667NS

8-Bit Shift Register Latch Constant Current Driver IC

1
2
3
4
5
6
7
8
9

10

20
19
18
17
16
15
14
13
12
11

5.5±0.3

7.6±0.3

(0.4)

1.27

0.9±0.25

2.05±0.2

0.9±0.25

0.2

– 0.05

+ 0.1

0.4±0.25 (0.4)

12.63±0.3

Unit : mm

0.1±0.1

20-pin SOP Package (SOP020-P-0300A)

■ Block Diagram

Gate Control Sig.

Latch Control Sig.

Data Input

Clock Input

12 8

Constant

Current

Output

Constant

Current

Output

Constant

Current

Output

Gate

Latch

Shift

Register

Shift

Register

Shift

Register

Current Set.

Data Output

Resistor

External

2

OthersDN8667NS

Parameter Symbol Rating Unit

■ Absolute Maximum Rating (Ta = 25˚C)

*

For printed board SM, it decreases with rate of 10.24 mW/˚C from Ta = 25 ˚C.

Supply voltage
Output voltage
Output current
Power dissipation

*

Operating ambient temperature
Storage temperature

V

CC

V

O

I

O

P

D

T

opr

T

stg

0 to + 7.0

0 to + 14

150

1.28

–20 to + 85

–55 to + 150

V
V

mA

W
˚C
˚C

■ Recommended Operation Range (Ta=25 ˚C)

V

CC

Operating supply voltage

Parameter Symbol Range

4.5V to 5.5V

Note) VCC= 5V unless otherwise specified.

CLK
CLK
STB

SIN

STB

SIN

STB

Parameter Symbol Condition min typ max Unit

■ Electrical Characteristics (VCC=5V,Ta=25 ± 2˚C)

Input voltage

Positive direction

Negative direction

0.35V

CC

V

T+

0.7V

CC

V

V

SOUT

= 0.1, V

CC

– 0.1V

I

SOUT

= 20µA

Input current

0.2V

CC

4.0

83

20
20
20
15
20
10

V

T–

0.55V

CC

V

V

1H

= 5.0VI

IH

– 25

25

µA

mA
mA

mA

V

1L

= 0VI

IL

µA

µA

25

VO= 14V (Output OFF)I

OLK

2

mA

20

mA

MH

Z

ns

30
20

Output voltage (SOUT)

Output current 1 (Qn)
Output current 2 (Qn)
Output current error between bits
Output leak current

I

OH

= – 0.4mA

VCC=5.5V

V

OH

0.5

I

OL

= 1.6mAV

OL

I

ref

= 0mAI

CC1

I

ref

= –2.5mA

Input Duty 40 to 60%

I

CC2

I

ref

= –2.5mAI

CC3

f

CLK

t

w

t

su

t

h

t

r

t

f

100
117

V

O

(Qn) = 0.5V

I

OI

I

OI

±6

V

CC

= 5.0V, I

ref

= –12mA

V

O

(Qn) = 1.0V

DI

O

V
V

%

{

I

O

(Qn) = –10µA, 90mA

V

O

(Qn) =

0.6V I

ref

= –

2.5mA

{

Total Driver Output

OFF ON

Supply current

Input pulse width

Clock frequency

Setting-up time

Holding time

Clock pulse rise time
Clock pulse fall time

500

500

ns
ns
ns
ns
ns
ns
ns

V

CC

=5.0V

R

L

=50Ω

C

L

=15pF