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PDF UDN2987ALWTR-6 Data sheet ( Hoja de datos )
| Número de pieza | UDN2987ALWTR-6 | |
| Descripción | (UDN2987x-6) 8-Channel Source Driver | |
| Fabricantes | Allegro Microsystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UDN2987ALWTR-6 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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UDN2987x-6
DABIC-5 8-Channel Source Driver
with Overcurrent Protection
Package A, 20-pin DIP
Package LW, 20-pin SOIC-W
Approximate Scale 1:1
Providing overcurrent protection for each of its eight
sourcing outputs, the UDN2987A-6 and UDN2987LW-6
drivers are used as an interface between standard low-level logic
and relays, motors, solenoids, LEDs, and incandescent lamps.
These devices include thermal shut down and output transient
protection/clamp diodes for use with sustaining
voltages to 35 V.
Features
4.75 to 35 V driver supply voltage
Output enable-disable (OE/R)
350 mA output source current
Overcurrent protected
Internal ground clamp diodes
Output Breakdown Voltage 35 V minimum
TTL, DTL, PMOS, or CMOS compatible inputs
Internal Thermal Shut Down (TSD)
Applications
Relays
Motors
Solenoids
LEDs
Incandescent lamps
Typical Application
IN1
OUT1
In these drivers, each channel includes a latch to turn off
that channel if the maximum channel current is exceeded. All
channels are disabled if the thermal shutdown is activated. A
common FAULT output is used to indicate either chip thermal
shutdown or any overcurrent condition. All outputs are enabled
by pulling the common OE/R input high. When OE/¯R is low,DataShee
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preventing floating inputs from turning on the outputs.
Under normal operating conditions, each of eight outputs
will source in excess of 100 mA continuously at an ambient
temperature of 25°C and a supply of 35 V. The over-current
fault circuit will protect the device from short-circuits to ground
with supply voltages of up to 30 V.
The inputs are compatible with 5 and 12 V logic systems:
TTL, Schottky TTL, DTL, PMOS, and CMOS. In all cases, the
output is switched ON by an active high input level. Compared
to their predecessor devices, the UDN2987A and UDN2987LW,
the UDN2987A-6 and UDN2987LW-6 have a significantly
faster TPHL (200 ns typical) and a lower driver supply voltage
rating (4.75 V), which allows the use of 5 V logic.
CPU
IN2 OUT2
IN3 OUT3
IN4 OUT4
IN5 2987 OUT5
IN6 OUT6
IN7 OUT7
1 to 8 Load
Components
The UDN2987A-6 is supplied in a 20-pin dual in-line plastic
(DIP) package; the UDN2987LW-6 is supplied in a 20-lead
small-outline (SOIC-W) plastic package. The Pb (lead) free
versions have 100% matte-tin leadframe plating.
IN8 OUT8
FAULT
OE/R¯
GND
VS
4.75 to 35 V
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29876DS
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UDN2987x-6
DABIC-5 8-Channel Source Driver
with Overcurrent Protection
THERMAL CHARACTERISTICS
Characteristics
Symbol
Test Conditions
Package Thermal Resistance*
RθJA
Package A, on 4-layer board based on JEDEC standard
Package LW, on 4-layer board based on JEDEC standard
*Additional thermal information is available on the Allegro Web site.
Rating
32
48
Unit
°C/W
°C/W
et4U.com
Power Dissipation versus Ambient Temperature
4.0
3.5
DataSheet4U.com
3.0
2.5
2.0 (RPQJaAc=ka4g8eºLCW/W)
1.5
1.0
0.5
0
25 50 75 100 125 150
TA (°C)
DataShee
DataSheet4U.com
29876DS
DataSheet4 U .com
Allegro MicroSystems, Inc.
5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
DataSheet4wwUw..aclloegmromicro.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet UDN2987ALWTR-6.PDF ] | |
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