2559_07 [ALLEGRO]
PROTECTED QUAD POWER DRIVER; 受保护QUAD功率驱动器
| 型号： | 2559_07 |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | PROTECTED QUAD POWER DRIVER |
| 文件： | 总8页 (文件大小：443K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
2559
PROTECTED
QUAD POWER DRIVER
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 will 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.
UDx2559B
1
2
3
4
16 IN
15 IN
OUT
4
4
K
3
Over-current 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.
14
ENABLE
OUT
3
13 GROUND
GROUND
5
6
12
11
10
9
GROUND
GROUND
OUT
2
V
CC
7
8
K
IN
IN
2
1
OUT
1
Dwg. PP-017-1
These devices can be used to drive various loads including incan-
descent 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. The lead (Pb) free versions have 100% matte tin
leadframe plating.
ABSOLUTE MAXIMUM RATINGS
at TA = 25°C
Output Voltage, VOUT . . . . . . . . . 60 V
Over-Current Protected Output Voltage,
VOUT . . . . . . . . . . . . . . . . . . . 25 V
Output Current, IOUT . . . . . . . . . 1.0 A*
Supply Voltage, VCC . . . . . . . . . . 7.0 V
Input Voltage, VIN or VEN . . . . . . 7.0 V
FEATURES
■ 700 mA Output Current per Channel
■ Independent Over-Current Protection for Each Driver
■ Thermal Protection for Device and Each Driver
■ Low Output-Saturation Voltage
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range, TA
Prefix ‘UDK’ . . . . -40°C to +125°C
Prefix ‘UDN’ . . . . . -20°C to +85°C
Prefix ‘UDQ’ . . . . . -40°C to +85°C
■ Integral Output Flyback Diodes
Storage Temperature Range,
■ TTL and 5 V CMOS Compatible Inputs
TS . . . . . . . . . . . . -55°C to +150°C
*Outputs are peak current limited at
approximately 1.0 A per driver. See
Circuit Description and Application for
further information.
2559
PROTECTED
QUAD POWER DRIVER
Selection Guide
Part Number
Pb-free
Package
Ambient Temperature
(°C)
UDN2559B
–
Yes
–
Yes
–
16-pin DIP, exposed tabs
16-pin DIP, exposed tabs
28-lead PLCC
28-lead PLCC
16-lead SOIC
UDN2559B-T
UDN2559EB
UDN2559EB-T
UDN2559LB
UDN2559LB-T
–20 to 85
–40 to 85
–40 to 125
Yes
16-lead SOIC
UDQ2559B
–
Yes
–
16-pin DIP, exposed tabs
16-pin DIP, exposed tabs
16-lead SOIC
UDQ2559B-T
UDQ2559LB
UDQ2559LB-T
Yes
16-lead SOIC
UDK2559B
–
Yes
–
Yes
–
16-pin DIP, exposed tabs
16-pin DIP, exposed tabs
28-lead PLCC
28-lead PLCC
16-lead SOIC
UDK2559B-T
UDK2559EB
UDK2559EB-T
UDK2559LB
UDK2559LB-T
Yes
16-lead SOIC
UDx2559LB
1
2
3
4
5
6
7
8
16
15
14
IN
IN
OUT
4
3
4
3
K
ENABLE
OUT
GROUND
GROUND
OUT
13
12
11
10
9
GROUND
GROUND
V
2
CC
K
IN
IN
2
1
OUT
1
Dwg. PP-017-6
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2559
PROTECTED
QUAD POWER DRIVER
FUNCTIONAL BLOCK DIAGRAM
(1 of 4 Channels)
K
V
CC
OUT
N
ENABLE
IN
N
THERMAL
LIMIT
<<1 Ω
Dwg. FP-041
UDx2559EB
5
R
= 6°C/W
θJT
4
SUFFIX 'EB', R
= 36°C/W
θJA
NC
3
2
1
0
GROUND
5
25
24
23
22
GROUND
SUFFIX 'B', R
= 43°C/W
θJA
6
7
8
9
21
20
19
10
11
GROUND
GROUND
SUFFIX 'LB', R
50
= 90°C/W
θJA
V
NC
CC
75
100
125
150
25
°
TEMPERATURE IN C
Dwg. GP-004-2B
Dwg. PP-019-1
PD = (VOUT1 x IOUT1 x dc) + … + (VOUTn x IOUTn x dc)
+ (VCC x ICC) = (TJ - TA)/RθJA
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2559
PROTECTED
QUAD POWER DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C (prefix ‘UDN’) or over operating
temperature range (prefix ‘UDK’ or ‘UDQ’), V = 4.75 V to 5.25 V
CC
Limits
Max.
Characteristic
Symbol
Test Conditions
VOUT = 50 V, VIN = 0.8 V, VEN = 2.0 V
OUT = 50 V, VIN = 2.0 V, VEN = 0.8 V
Min.
—
—
40
—
—
—
—
2.0
—
—
—
—
—
—
—
—
—
—
—
Typ.
<1.0
<1.0
—
Units
µA
µA
V
Output Leakage Current
ICEX
100
100
—
V
Output Sustaining Voltage
Output Saturation Voltage
VOUT(SUS)
VOUT(SAT)
IOUT = 100 mA, VIN = VEN = 0.8 V
All Devices, IOUT = 100 mA
—
300
500
700
—
mV
mV
mV
A
All Devices, IOUT = 400 mA
—
‘B’ & ‘EB’ Packages Only, IOUT = 600 mA
—
Over-Current Trip
Input Voltage
ITRIP
Logic 1
Logic 0
Logic 1
Logic 0
ICC
1.0
—
V
V
IN(1) or VEN(1)
IN(0) or VEN(0)
—
V
—
0.8
40
V
Input Current
VIN(1) or VEN(1) = 2.0 V
IN(0) or VEN(0) = 0.8 V
—
µA
µA
mA
mA
V
V
—
-10
80
Total Supply Current
Clamp Diode Forward Voltage
All Outputs ON, VIN* = VEN = 2.0 V
All Outputs OFF
—
—
5.0
1.7
2.1
50
VF
IF = 1.0 A
—
IF = 1.5 A
—
V
Clamp Diode Leakage Current
Turn-On Delay
IR
VR = 50 V, D1 + D2 or D3 + D4
IOUT = 500 mA
—
µA
µs
µs
°C
tPHL
tPLH
TJ
—
20
IOUT = 500 mA
—
20
Thermal Limit
165
—
Typical Data is for design information only.
Negative current is defined as coming out of (sourcing) the specified terminal.
As used here, -100 is defined as greater than +10 (absolute magnitude convention) and the minimum is implicitly zero.
* All inputs simultaneously, all other tests are performed with each input tested separately.
www.allegromicro.com
2559
PROTECTED
QUAD POWER DRIVER
TYPICAL OUTPUT
CHARACTERISTIC
CIRCUIT DESCRIPTION AND APPLICATION
INCANDESCENT LAMP DRIVER
High incandescent lamp turn-ON/in-rush currents can contribute to
poor lamp reliability and destroy semiconductor lamp drivers. Warm-
ing or current-limiting resistors protect both driver and lamp but use
significant power either when the lamp is OFF or when the lamp is
ON, respectively. Lamps with steady-state current ratings up to 700
mA can be driven by these devices without the need for warming
(parallel) or current-limiting (series) resistors.
NOT TO SCALE
T
< 150°C
J
When an incandescent lamp is initially turned ON, the cold fila-
ment is at minimum resistance and would normally allow a 10x to 12x
in-rush current. With these drivers, during turn-ON, the high in-rush
current is sensed by the internal low-value sense resistor. Drive current
to the output stage is then diverted by the shunting transistor, and the
load current is momentarily limited to approximately 1.0 A. During
this short transition period, the output current is reduced to a value
dependent on supply voltage and filament resistance. During lamp
warmup, the filament resistance increases to its maximum value, the
output stage goes into saturation and applies maximum rated voltage to
the lamp.
T
= 165°C
J
JUNCTION
TEMP. LIMIT
THERMAL
GRADIENT
SENSING
I TRIP
V
OUT(SAT)
OUTPUT CURRENT, I
OUT
Dwg. GP-013
INDUCTIVE LOAD DRIVER
TYPICAL OUTPUT BEHAVIOR
Bifilar (unipolar) stepper motors, relays, or solenoids can be driven
directly. The internal flyback diodes prevent damage to the output transistors
by suppressing the high-voltage spikes that occur when turning OFF an
inductive load.
NORMAL LAMP IN-RUSH CURRENT
For rapid current decay (fast turn-OFF speeds), the use of Zener diodes
will raise the flyback voltage and inprove performance. However, the peak
NOT TO SCALE
voltage must not exceed the specified minimum sustaining voltage (VSUPPLY
+
VZ + VF ≤ VOUT(SUS)).
FAULT CONDITIONS
In the event of a shorted load, the load current will attempt to
increase. As described above, the drive current to the affected output
stage is reduced, causing the output stage to go linear, limiting the peak
output current to approximately 1 A. As the power dissipation of that
output stage increases, a thermal gradient sensing circuit will become
operational, further decreasing the drive current to the affected output
stage and reducing the output current to a value dependent on supply
voltage and load resistance.
THERMAL GRADIENT SENSING
CURRENT LIMIT
ITRIP
Continuous or multiple overload conditions causing the chip
temperature to reach approximately 165°C will result in an additional
reduction in output current to maintain a safe level.
0
TIME
Dwg. WP-008
If the fault condition is corrected, the output stage will return to its
normal saturated condition.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2559
PROTECTED
QUAD POWER DRIVER
B Package, 16-pin DIP
with internally fused pins 4, 5, 12, and 13
and external thermal tabs
Preliminary dimensions, for reference only
Dimensions in inches
Metric dimensions (mm) in brackets, for reference only
(reference JEDEC MS-001 BB)
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
Terminal #1 mark area
A
.775 19.69
.735 18.67
A
.014 0.36
.008 0.20
B
16
.430 10.92
MAX
.280 7.11
.240 6.10
.300 .7.62
A
1
2
.195 4.95
.115 2.92
C
.210 5.33
MAX
SEATING
PLANE
.015 0.38
MIN
.005 0.13
MIN
.100 .2.54
.150 3.81
.115 2.92
.070 1.78
.045 1.14
.022 .056
16X
.014 .036
.010 [0.25] M
C
2559
PROTECTED
QUAD POWER DRIVER
EB Package, 28-pin PLCC
with internally fused pins 5 through 11 and 19 through 25
.495 12.57
.485 12.32
.456 11.58
.450 11.43
2X
.007 [0.18]
H
B A
A
.007 [0.18]
.002 [0.05]
H
B
B A
.456 11.58
.450 11.43
2X
B
.020 0.51
2
1
28
.007 [0.18]
.002 [0.05]
H
B
B
.219 5.56
.191 4.85
A
.219 5.56
.191 4.85
.495 12.57
.485 12.32
.007 [0.18]
H
B
A
.020 0.51
MIN
.120 3.05
.090 2.29
.180 4.57
.165 4.19
.032 0.81
.026 0.66
28X
H
.007 [0.18]
C B A
28X
28X
C
SEATING
PLANE
.004 [0.10]
C
.021 0.53
.013 0.33
.050 1.27
.007 [0.18]
C B A
.219 5.56
.191 4.85
.219 5.56
.191 4.85
Preliminary dimensions, for reference only
(reference JEDEC MS-018 AB)
Dimensions in inches
Millimeters (mm) in brackets, for reference only
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
A
Terminal #1 mark area
www.allegromicro.com
2559
PROTECTED
QUAD POWER DRIVER
LB Package, 16-pin SOIC
with internally fused pins 4 and 5, and 12 and 13
10.63 .419
9.97 .393
0.25 [.010] M B M
10.50 .614
10.10 .598
8º
0º
A
B
16
0.33 .013
0.20 .008
7.60 .299
7.40 .291
A
1.27 .050
0.40 .016
1
2
0.25 .010
16X
C
SEATING PLANE
GAUGE PLANE
SEATING
PLANE
0.10 [.004]
C
0.51 .020
0.31 .012
16X
2.65 .104
2.35 .093
0.25 [.010] M
C
A
B
1.27 .050
0.30 .012
0.10 .004
Preliminary dimensions, for reference only
Dimensions in millimeters
U.S. Customary dimensions (in.) in brackets, for reference only
(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
A
Terminal #1 mark area
Copyright ©1995, 2007, 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 specifications 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
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
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