6817
ADDRESSABLE
28-LINE
DECODER/DRIVER
6817
ADDRESSABLE
28-LINE DECODER/DRIVER
Intended for use in ink-jet printer applications, the A6817SEP
addressable 28-line decoder/driver combines low-power CMOS inputs
and logic with 28 high-current, high-voltage bipolar outputs. A 4-to-14
line decoder determines the selected output driver (n) in each
14-driver bank. Two independent output-enable inputs (active low)
then provide the final decoding to activate 1- or 2-of-28 outputs
(OUT
An
and/or OUT
Bn
). Special internal circuitry is programmed at the
time of manufacture to adjust the output pulse timing and thereby the
energy the device delivers to the ink-jet print head. The DABiC-IV
A6817SEP directly replaces the original BiMOS-II A5817SEP in most
applications.
The CMOS inputs cause minimal loading and are compatible with
standard CMOS, PMOS, and NMOS logic. Use with TTL or DTL
circuits may require appropriate pull-up resistors to ensure an input
logic high. The internal CMOS logic operates from a 5 V supply.
A CHIP ENABLE function is provided to lock out the drivers during
system power up. The 28 bipolar power outputs are open-collector
30 V Darlington drivers capable of sinking 500 mA at ambient
temperatures up to 85擄C.
The A6817SEP is furnished in a 44-lead plastic chip carrier
(quad pack) for minimum-area, surface-mount applications.
OUTPUT ENABLE A
Data Sheet
26186.22
OUTPUT ENABLE B
LOGIC SUPPLY
CHIP ENABLE
IN
D
(MSB)
GND
43
GND
42
IN
C
IN
B
41
IN
A
(LSB)
OUT B0
OUTB1
OUTB2
OUTB3
OUTB4
OUTB5
OUTB6
OUTB7
OUTB8
OUTB9
GND
IC
7
8
9
10
11
12
13
14
15
16
17
OUTPUT DRIVER BANK B
OUTPUT DRIVER BANK A
V
DD
44
40
6
5
4
3
2
1
39
38
37
36
35
34
33
32
31
30
29
OUTA0
OUTA1
OUTA2
OUTA3
OUTA4
OUTA5
OUTA6
OUTA7
OUTA8
OUTA9
GND
4-TO-14 LINE DECODER
25
19
20
18
21
22
23
OUTB11
24
OUTB10
OUTB13
OUTA11
A13
26
OUT
B12
OUTA12
A10
OUT
IC
IC
27
OUT
NC
28
Dwg. PP-050
FEATURES
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25
擄
C
Output Voltage, V
CE
.............................
30 V
Logic Supply Voltage, V
DD
..................
7.0 V
Input Voltage Range,
V
IN
.......................
-0.3 V to V
DD
+ 0.3 V
Output Current, I
C
...........................
600 mA
Package Power Dissipation, P
D
.....
2.70 W*
Operating Temperature Range,
T
A
.................................
-20
擄
C to +85
擄
C
Storage Temperature Range,
T
S
..............................
-55
擄
C to +150
擄
C
*Derate at rate of 22 mW/擄C above T
A
= 25擄C.
s
Controlled Characteristics for Ink-Jet Printers
s
Addressable Data Entry
s
30 V Minimum V
(BR)CEX
s
CMOS, PMOS, NMOS Compatible Inputs
s
Low-Power CMOS Logic
Caution: These CMOS devices have input static
protection (Class 2) but are still susceptible to
damage when exposed to extremely high static
electrical charges.
Always order by complete part number:
A6817SEP
.
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