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PDF 2544 Data sheet ( Hoja de datos )
| Número de pieza | 2544 | |
| Descripción | QUADDARLINGTONPOWERDRIVER | |
| Fabricantes | AllegroMicroSystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 2544 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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2544
QUAD DARLINGTON
POWER DRIVER
OUT4 1
K2
OUT3 3
GROUND 4
GROUND 5
OUT2 6
K7
OUT1 8
16 IN4
15 IN3
14 ENABLE
13 GROUND
12 GROUND
11 V CC
10 IN 2
9 IN 1
Dwg. PP-017A
ABSOLUTE MAXIMUM RATINGS
at TA = 25°C
Output Voltage, VOUT ............................. 50 V
Output Current, IOUT
(Peak) ........................................... 2.5 A
(Continuous) ................................. 1.8 A
Logic Supply Voltage, VCC .................... 7.0 V
Input Voltage, VIN .................................. 7.0 V
Package Power Dissipation,
PD ......................................... See Graph
Operating Temperature Range,
TA .................................. -20°C to +85°C
Storage Temperature Range,
TS ................................ -55°C to +150°C
Combining logic gates and high-current bipolar outputs, the
UDN2544B quad Darlington power driver provides an interface be-
tween low-level logic circuitry and high-power loads. Each of the four
outputs can sink up to 1.8 A in the on state with peak inrush currents
to 2.5 A. The four power outputs are each comprised of an open-
collector Darlington driver and an internal flyback/clamp diode for
switching inductive loads. They feature a minimum breakdown and
sustaining voltage of 50 V. The logic inputs are compatible with TTL
and 5 V CMOS logic systems.
This device is particularly well-suited for unipolar stepper motor
drive applications. With complementary control inputs and an active-
low ENABLE, the UDN2544B makes it easy to implement full stepping
of a stepper motor with only two microcontroller/microprocessor control
lines. Other typical applications include relay or solenoid driving and
incandescent or LED lamp driving.
The UDN2544B is supplied in a 16-pin batwing power DIP. The
batwing construction provides for maximum package power dissipation
in a standard DIP construction. At 25°C, and with only 1 sq. in. of
copper foil at the ground tabs, the package is capable of safely dissi-
pating 3.8 W.
FEATURES
I 1.8 A Continuous Output Current
I Output Voltage to 50 V
I Inputs Configured for Unipolar Stepper Motors
I Active-Low Output Enable
I TTL and 5 V CMOS Compatible Inputs
I Integral Transient-Suppression Diodes
Always order by complete part number: UDN2544B .
1 page | ||
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