Panasonic DN8648FBP Datasheet

1

Others

■ Overview

The DN8648FBP is an IC which incorporates a 32-bit shift
register and a latch driver to meet high-speed operation low
power consumption and high-density printout of the thermal
printers for the work processors, and so on. It employs the Bi­CMOS process in which the serial-in and serial-out/parallel-out
functions are incorporated, the 32-step shift register block and
latch block are composed of CMOS, and the 32-step parallel
driver block is bipolar.

■ Features

• Serial-in and serial-out/parallel-out

• Cascade connection allowed

• Built-in output malfunctioning preventive circuit

• Low current consumption at standby I

CC

≤ 100µA

• High-breakdown, large current drive type output steps
Breakdown voltage : 30V
Output current : 120mA (per pin)

• Surface mountable 44-pin flat package (pin pitch : 0.8mm)

■ Applications

• Driving of the thermal heads

• Driving of the relays, LEDs, solenoids, etc.

DN8648FBP

32-bit Shift Register Latch Driver IC

111

33 23

12

22

34

44

0.35±0.10.8

Unit : mm

10.0±0.3

2.85±0.2

1.3±0.11.3±0.1

0.2

0.6

+ 0.1

– 0.05

12.2±0.3

0.1±0.1

10.0±0.3

12.2±0.3

44-pin QUADFLAT Package (QFH044-P-1010 )

■ Block Diagram

SIN

CLK

STB

EN

38

35

36

37

DCPQ

LQD

DCPQ

LQD

DCPQ

LD

Q

DCPQ

LD

Q

DCPQ

LD

Q

Output
malfunction
protector

39

34

SOUT

V

CC

GND
6, 7, 27, 28

31

Q

3

33 32

Q

1

Q

2

43

Q

31

42

Q

32

2

Others

DN8648FBP

V

CC

V

O

I

O

P

D

T

opr

T

stg

Supply voltage
Output voltage
Output current
Power dissipation
Operating ambient temperature
Storage temperature

V
V

mA

W
˚C
˚C

0 to 7

0 to 30

120 (Per one circuit)

1.8

*

– 20 to + 75

– 55 to + 125

*

When mounting onto the PCB, power dissipation is reduced at a rate of 15mW/˚C from Ta= 25˚C.

Parameter Symbol Rating Unit

■ Absolute Maximum Ratings (Ta = 25˚C)

Operating supply voltage
Output voltage
Output current
Clock frequency

Input pulse width

Setup time

Hold time

CLK
STB

over 40ns
over 40ns

SIN

STB

SIN

STB

over 30ns
over 40ns
over 20ns

over 0ns
Clock pulse rise time
Clock pulse fall time

*

1

An allowable value changes depends on the number of simultaneously turned-on circuits and the duty. Use with power dissipation taken into full account.

*

2 Input duty : 40 to 60%

V

CC

V

O

I

O

f

CLK

t

w

t

su

t

h

t

r

t

f

4 to 6V

below 30V

below 100mA

*

1

below 10MHz

*

2

below 500ns
below 500ns

Parameter Symbol Range

■ Recommended Operating Range (Ta=25˚C)

Input voltage

0.7V

CC

V

IH

V

CC

V

VCC= 4 to 6V

0V

IL

0.3V

CC

V

Input current

I

IH

25 µA

V

IH

= 5V

I

IL

– 25 µA

V

IL

= 0V

I

OL

=100mA
IOL= 80mA
VO= 30V (output OFF)

Output saturation voltage (Qn)

V

CE (sat) 1

0.4 V

V

CE (sat) 2

0.35 V

Output leakage current

I

OLK1

50 µA

*

VCC=5V unless otherwise specified

I

OLK2

µA

V

O

=15V (output OFF)

Supply current

I

CC1

100 µA

Total driver output OFF

25

I

CC2

5mA

Driver output 1 circuit ON

Output voltage (SOUT)

V

OH

V

I

O

= –1µA

V

OL

0.1 V

I

O

=1µA

4.9

Output current (SOUT)

I

OH

mA

V

OH

= 4.5V

I

OL

mA

V

OL

= 0.4V

– 4

4

Output malfunctioning preventive
Circuit operating voltage

2.9V

CCT

+

3.9 V

*

2.6V

CCT

–

3.6 V

*

Parameter Symbol Condition min typ max Unit

■ Electrical Characteristics (Ta=25˚C)