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參數(shù)資料
| 型號： | UCN5829EB |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | 9-BIT SERIAL-INPUT, LATCHED SINK DRIVER |
| 中文描述： | 9位串行輸入，鎖存驅(qū)動水槽 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 134K |
| 代理商： | UCN5829EB |
DSCONTNUEDPRODUCT
I
Internal Pull-Ups for TTL Compatibility
I
User-Defined Output Enable Timeout
I
Internal Thermal Shutdown Circuitry
temperature will activate device thermal shut-
down circuitry. These conditions can be
tolerated, but should be avoided.
—FORREFERENCEONLY
Intended primarily to drive high-current, dot matrix 9- and 24-wire
printer solenoids, the UCN5829EB serial-input, latched sink driver
provides a complete driver function with a minimum external parts
count. Included on chip are constant-frequency PWM current control
sensing, and thermal shutdown.
The 9-bit CMOS shift register and latches allow operation with
most microprocessor/LSI-based systems. With a 5 V logic supply,
these BiMOS devices will operate at data input rates greater than 3.3
MHz. The CMOS inputs cause minimum loading and are compatible
with standard CMOS, PMOS, NMOS, and TTL circuits. A CMOS serial
data output allows cascade connections in applications requiring
additional drive lines as required for 24-wire printheads.
The device features nine open-collector Darlington drivers, each
rated at 50 V and 1.6 A. Current-control for each output is provided by
an internal current-sensing resistor and a constant-frequency chopper
circuit. An external high-side driver can be used to optimize print head
performance. It is enabled by an on-chip driver during the output
enable timeout. Internal logic sequencing prevents false output
operation during power up. Other high-current devices for driving dot
matrix printheads are the UDN2961B/W and UDN2962W.
The UCN5829EB is supplied in a 44-lead power PLCC. Its
batwing construction provides for maximum package power dissipation
in a minimum-area, surface-mountable package.
FEATURES
I
1.6 A Continuous Output Current
I
50 V Minimum Sustaining Voltage
I
Internal Current Sensing
I
Constant-Frequency PWM Current Control
I
Control for External High-Side Driver
I
To 3.3 MHz Data Input Rate
5829
9-BIT SERIAL-INPUT,
LATCHED SINK DRIVER
GND
GND
GND
GND
6
5
4
3
2
1
4
4
4
4
4
7
8
9
10
11
12
13
14
15
16
17
29
30
39
38
37
36
35
34
33
32
31
N
C
N
C
O
9
O
8
O
7
O
6
O
5
O
4
O
3
O
2
O
1
CLK
CURRENT
CONTROL
SHIFT REGISTER
LATCHES
ONE-SHOT
NC
NC
V
DD
2
2
2
2
2
2
2
2
2
1
1
H
D
R
R
S
I
S
O
C
S
I
S
R
R
C
E
9
C
Dwg. PP-028A
Always order by complete part number:
UCN5829EB
.
* Fault conditions that produce excessive junction
Caution: This CMOS device has input static
protection but is susceptible to damage when
exposed to extremely high static electrical
charges.
ABSOLUTE MAXIMUM RATINGS
Output Current Voltage, V
OUT
............
50 V
Output Current, I
OUT(S)
(Continuous) ................................
1.6 A
(Peak)............................................
1.8 A
Logic Supply Voltage, V
DD
..................
7.0 V
Input Voltage Range,
V
IN
.......................
-0.3 V to V
DD
+ 0.3 V
Package Power Dissipation,
P
D
........................................
See Graph
Operating Temperature Range,
T
A
..................................
-20
°
C to +85
°
C
Junction Temperature, T
J
...............
+150
°
C*
Storage Temperature Range,
T
S
...............................
-55
°
C to +150
°
C
D
2
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