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PDF ( 数据手册 , 数据表 ) UDK2559

零件编号 UDK2559
描述 PROTECTED QUAD POWER DRIVER
制造商 Allegro MicroSystems
LOGO Allegro MicroSystems LOGO 


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UDK2559 数据手册, 描述, 功能
2559
Protected Quad Power Driver
Features and Benefits
700 mA output current per channel
Independent overcurrent protection for each driver
Thermal protection for device and each driver
Low output-saturation voltage
Integral output flyback diodes
TTL and 5 V CMOS-compatible inputs
Packages:
16-pin DIP
with exposed thermal tabs
(B package)
28-pin PLCC
(Package EB)
Not to scale
16-pin SOICW
with internally fused pins
(LB package)
Description
Providing improved output current limiting, the UDK,
UDN, and UDQ2559B, EB, and LB quad power drivers
combine AND logic gates and high-current bipolar outputs
with complete output protection. Each of the four outputs
sink 700 mA in the on state. The outputs have a minimum
breakdown voltage (load dump) of 60 V and a sustaining
voltage of 40 V. The inputs are compatible with TTL and
5 V CMOS logic systems.
Overcurrent protection for each channel has been designed
into these devices and is activated at approximately 1 A. It
protects each output from short circuits with supply voltages
up to 25 V. When an output current trip point is reached, that
output stage is driven linearly resulting in a reduced output
current level. If an over-current or short-circuit condition
continues, the thermal-limiting circuits will first sense the rise
in junction temperature and then the rise in chip temperature,
further decreasing the output current. Under worst-case
conditions, these devices will tolerate short circuits on all
outputs, simultaneously.
These devices can be used to drive various loads including
incandescent lamps (without warming or limiting resistors)
or inductive loads such as relays, solenoids, or dc stepping
motors.
The packages offer fused leads for enhanced thermal dissipation.
Package B is a 16-pin power DIP with exposed tabs, EB is a
28-lead power PLCC, and LB is a 16-lead power wide-body
SOIC for surface-mount applications. They are lead (Pb) free
with 100% matte tin leadframe plating.
ENABLE
INN
Functional Block Diagram
(1 of 4 Channels)
VCC
K
OUTN
Thermal
Limit
<< 1Ω
29317.14L







UDK2559 pdf, 数据表
2559
Protected Quad Power Driver
LB Package, 16-pin SOICW
with internally fused pins 4 and 5, and 12 and 13
10.30±0.20
16
4° ±4
0.27
+0.07
–0.06
0.65
16
1.27
7.50±0.10 10.30±0.33
A
12
16X
0.10 C
0.41 ±0.10
SEATING C
PLANE
1.27 2.65 MAX
0.20 ±0.10
For Reference Only
Pins 4 and 5, and 12 and 13 internally fused
Dimensions in millimeters
(reference JEDEC MS-013 AA)
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
0.84
+0.44
–0.43
2.25
0.25
SEATING PLANE
GAUGE PLANE
12
B PCB Layout Reference View
9.50
A Terminal #1 mark area
B Reference pad layout (reference IPC SOIC127P1030X265-16M)
All pads a minimum of 0.20 mm from all adjacent pads; adjust as necessary
to meet application process requirements and PCB layout tolerances
Copyright ©1995-2010, Allegro MicroSystems, Inc.
The products described here are manufactured under one or more U.S. patents or U.S. patents pending.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specications as may be required to permit
improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the
information being relied upon is current.
Allegro’s products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the
failure of that life support device or system, or to affect the safety or effectiveness of that device or system.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use;
nor for any infringement of patents or other rights of third parties which may result from its use.
For the latest version of this document, visit our website:
www.allegromicro.com
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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