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Panasonic |
Others
DN8648FBP
32-bit Shift Register Latch Driver IC
s 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 Bi-
CMOS 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.
s Features
• Serial-in and serial-out/parallel-out
• Cascade connection allowed
• Built-in output malfunctioning preventive circuit
• Low current consumption at standby ICC ≤ 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)
s Applications
• Driving of the thermal heads
• Driving of the relays, LEDs, solenoids, etc.
33
34
23
22
Unit : mm
44
1
12
11
10.0±0.3
12.2±0.3
0.6
44-pin QUADFLAT Package (QFH044-P-1010 )
s Block Diagram
SIN 38
CLK 35
STB 36
EN 37
DQ
CP
LD
Q
DQ
CP
LD
Q
DQ
CP
LD
Q
33 32
31
Q1 Q2 Q3
DQ
CP
LD
Q
43
Q31
D Q 39 SOUT
CP
LD
34 VCC
Q Output
malfunction
protector
GND
6, 7, 27, 28
42
Q32
1
DN8648FBP
Others
s Absolute Maximum Ratings (Ta = 25˚C)
Parameter
Symbol
Rating
Supply voltage
VCC 0 to 7
Output voltage
VO 0 to 30
Output current
IO 120 (Per one circuit)
Power dissipation
PD 1.8 *
Operating ambient temperature
Topr
– 20 to + 75
Storage temperature
Tstg – 55 to + 125
* When mounting onto the PCB, power dissipation is reduced at a rate of 15mW/˚C from Ta= 25˚C.
Unit
V
V
mA
W
˚C
˚C
s Recommended Operating Range (Ta=25˚C)
Parameter
Symbol
Range
Operating supply voltage
VCC
4 to 6V
Output voltage
VO
below 30V
Output current
IO below 100mA *1
Clock frequency fCLK below 10MHz *2
Input pulse width
CLK
STB
tw
over 40ns
over 40ns
Setup time
SIN
STB
tsu
over 30ns
over 40ns
Hold time
SIN
th
STB
over 20ns
over 0ns
Clock pulse rise time
tr
below 500ns
Clock pulse fall time
tf
below 500ns
*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%
s Electrical Characteristics (Ta=25˚C)
Parameter
Symbol
Input voltage
Input current
Output voltage (SOUT)
Output current (SOUT)
Output saturation voltage (Qn)
Output leakage current
Supply current
Output malfunctioning preventive
Circuit operating voltage
* VCC=5V unless otherwise specified
VIH
VIL
IIH
IIL
VOH
VOL
IOH
IOL
VCE (sat) 1
VCE (sat) 2
IOLK1
IOLK2
ICC1
ICC2
VCCT+
VCCT–
Condition
VCC= 4 to 6V
VIH= 5V
VIL= 0V
IO= –1µA
IO=1µA
VOH= 4.5V
VOL= 0.4V
IOL=100mA
IOL= 80mA
VO= 30V (output OFF)
VO=15V (output OFF)
Total driver output OFF
Driver output 1 circuit ON
*
*
min
0.7VCC
0
4.9
–4
4
2.9
2.6
typ max Unit
VCC V
0.3VCC
25
V
µA
– 25 µA
V
0.1 V
mA
mA
0.4 V
0.35 V
50 µA
25 µA
100 µA
5 mA
3.9 V
3.6 V
2
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