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PDF UCN5829 Data sheet ( Hoja de datos )
| Número de pieza | UCN5829 | |
| Descripción | 9-BIT SERIAL-INPUT / LATCHED SINK DRIVER | |
| Fabricantes | Allegro | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UCN5829 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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5829
9-BIT SERIAL-INPUT,
LATCHED SINK DRIVER
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
GND 7
8
9
T10
11
C12
U13
D Y14
L15
16
RO NGND 17
V DD
ONE-SHOT
CLK
SHIFT REGISTER
LATCHES
NC
CURRENT
CONTROL
NC
39 GND
38
37
36
35
34
33
32
31
30
29 GND
D P E ODwg.PP-028A
E CABSOLUTE MAXIMUM RATINGS
U NOutput Current Voltage, VOUT ............ 50 V
IN EOutput Current, IOUT(S)
R(Continuous) ................................ 1.6 A
(Peak) ............................................ 1.8 A
T ELogic Supply Voltage, VDD .................. 7.0 V
N FInput Voltage Range,
O EVIN ....................... -0.3 V to VDD + 0.3 V
Package Power Dissipation,
C RPD ........................................ See Graph
ISOperating Temperature Range,
RTA .................................. -20°C to +85°C
D OJunction Temperature, TJ ............... +150°C*
Storage Temperature Range,
FTS ............................... -55°C to +150°C
* Fault conditions that produce excessive junction
—temperature will activate device thermal shut-
for each output driver, a user-defined output enable timeout, current
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
s 1.6 A Continuous Output Current
s 50 V Minimum Sustaining Voltage
s Internal Current Sensing
s Constant-Frequency PWM Current Control
s Control for External High-Side Driver
s To 3.3 MHz Data Input Rate
s Low-Power CMOS Logic & Latches
s Internal Pull-Ups for TTL Compatibility
s User-Defined Output Enable Timeout
s Internal Thermal Shutdown Circuitry
down circuitry. These conditions can be
tolerated, but should be avoided.
Caution: This CMOS device has input static
protection but is susceptible to damage when
exposed to extremely high static electrical
charges.
Always order by complete part number: UCN5829EB .
1 page  
5829
9-BIT SERIAL-INPUT,
LATCHED SINK DRIVER
+36 V
TEST CIRCUIT AND
TYPICAL APPLICATION
CHARGE
PUMP
POWER
NMOS
LOADS (9)
V REF
STROBE
CLOCK
SERIAL
DATA IN
V DD
OUTPUTS
HIGH-SIDE
DRIVER (HSD)
V DD
RC C
GROUND
RC EN
IN 9
RCV
+
20 µF
0.01
µF
250 pF
SERIAL
DATA OUT
5 kΩ ±1%
Dwg. EP-023A
TRUTH TABLE
Serial
Data
Input
Clock
Input
Shift Register
Contents*
I1 I2 … I9
Serial
Data
Output
Strobe
Input
Latch
Contents*
I1 I2 … I9
Output
Contents*
I1 I2 … I9
HSD
OUTPUT
H
H R1 … R8
R7
L
L R1 … R8
R7
H
X
HL
X
R1 R2 … R9
R8
XX…X
X
H R1 R2 … R9
P1 P2 … P9
P8
L
P1 P2 … P9 P1 P2 … P9
H
* Serial Data Output connected to Input9.
L = Low Logic Level H = High Logic Level X = Irrelevant P = Present State R = Previous State
5 Page 
5829
9-BIT SERIAL-INPUT,
LATCHED SINK DRIVER
Dimensions in Inches
(controlling dimensions)
28
18
0.319
0.291
0.021
0.013
0.319
0.291
0.050
BSC
29
0.032
0.026
0.695
0.685
0.656
0.650
39
0.020
MIN
0.180
0.165
40
17
INDEX AREA
44 1 2
0.656
0.650
0.695
0.685
7
6
Dwg. MA-005-44A in
NOTES: 1. Webbed lead frame. Leads 7 through 17 and 29 through 39 are internally one piece.
2. Exact body and lead configuration at vendor’s option within limits shown.
3. Lead spacing tolerance is non-cumulative.
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet UCN5829.PDF ] | |
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