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2543 PROTECTED QUAD POWER DRIVERS
2543
PROTECTED QUAD POWER DRIVERS
Providing interface between low-level logic and power loads to 100 W, the UDx2543B and UDx2543EB quad power drivers combine AND logic gates and high-current bipolar outputs. Each of the four independent outputs can sink up to 700 mA in the ON state. The outputs have a minimum breakdown voltage (load dump) of 60 V and a sustaining voltage of 35 V. The inputs are compatible with most TTL, DTL, LSTTL, and 5 V CMOS and PMOS logic systems. Over-current protection has been designed into each channel of the UDx2543B/EB and typically occurs at 1 A. It protects any one channel from output short circuits with supply voltages up to 25 V. When the maximum output current is reached, that output stage is driven linearly. If the over-current condition continues, that output's thermal limiting will operate, limiting that output's power dissipation to approximately 2.4 W. The outputs also include diodes for voltage clamping with inductive loads such as relays, solenoids, or dc stepper motors. These devices are supplied in a 16-pin power DIP of batwing construction (suffix `B') to provide for maximum package power dissipation. They are also available in a 28-lead PLCC (suffix `EB') for surface-mount applications. All devices are rated for continuous operation over the temperature range of -20C to +85C (UDN2543B/ EB) or for use in automotive applications over an extended temperature range as the UDQ2543B/EB.
Data Sheet 29317.2B
UDN/UDQ2543B
OUT4 K OUT3 GROUND GROUND OUT2 K OUT1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN 4 IN3 ENABLE GROUND GROUND V CC IN 2 IN 1
Dwg. PP-017-1
ABSOLUTE MAXIMUM RATINGS
at TA = 25C
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 . . . . . . . . . . 18 V Package Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . See Graph Operating Temperature Range, TA (UDN2543B/EB) . . . . -20C to +85C (UDQ2543B/EB) . . . . -40C to +85C Storage Temperature Range, TS . . . . . . . . . . . . . . . -55C to +150C
*Outputs are peak current limited at approximately 1.0 A per driver. See Circuit Description and Applications for further information.
FEATURES
s s s s s 700 mA Output Current per Channel Low Output-Saturation Voltage Integral Output Transient-Suppression Diodes TTL, CMOS, PMOS, NMOS Compatible Inputs Independent Over-Current Protection for Each Output
Always order by complete part number: Part Number UDN2543B UDN2543EB UDQ2543B UDQ2543EB Package 16-Pin DIP 28-Lead PLCC 16-Pin DIP 28-Lead PLCC Operating Temperature -20C to +85C -20C to +85C -40C to +85C -40C to +85C
2543 PROTECTED QUAD POWER DRIVERS
FUNCTIONAL BLOCK DIAGRAM
(1 OF 4 CHANNELS)
V CC
K
ENABLE IN N THERMAL LIMIT
OUTN
<<1
Dwg. FP-041
NOTE: These devices do not include an absolute thermal shutdown. Package power dissipation under fault conditions (2.4 W in the faulted channel) must therefore be evaluated at maximum operating temperature.
UDN/UDQ2543EB
10
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
NO CONNECTION
IN 1
8
R
JT
K
IN 2 27
= 6C/W
GROUND 5 6 7 8
NC 25 24 23 22 21 20 19 NC
15 12 13 14 16 17
28
26
4
2
3
1
ENABLE
OUT2
OUT1
GROUND
6
4
SUFFIX 'EB', R
JA
= 36C/W
9 10
2
SUFFIX 'B', R JA = 43C/W
GROUND
11 VCC
18
GROUND
NO CONNECTION
OUT 4
OUT 3
IN 4
IN 3
25
50
75 100 TEMPERATURE IN C
125
150
SUPPLY
0
K
Dwg. GP-004-1A
Dwg. PP-019-1
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright (c) 1986, 1993, Allegro MicroSystems, Inc.
2543 PROTECTED QUAD POWER DRIVERS
ELECTRICAL CHARACTERISTICS at TA = +25C (UDN2543B/EB) or over operating temperature range (UDQ2543B/EB only), VCC = 4.75 V to 5.25 V
Limits Characteristic Output Leakage Current Symbol ICEX Test Conditions VOUT = 60 V, VIN = 0.8 V, VEN = 2.0 V VOUT = 60 V, VIN = 2.0 V, VEN = 0.8 V Output Sustaining Voltage Output Saturation Voltage VOUT(SUS) VOUT(SAT) IOUT = 100 mA, VIN = VEN = 0.8 V IOUT = 100 mA, VIN = VEN = 2.0 V IOUT = 400 mA, VIN = VEN = 2.0 V IOUT = 700 mA, VIN = VEN = 2.0 V Input Voltage Logic 1 Logic 0 Input Current Logic 1 Logic 0 Total Supply Current ICC VIN(1) or VEN(1) VIN(0) or VEN(0) VIN(1) or VEN(1) = 2.0 V VIN(0) or VEN(0) = 0.8 V IOUT = 700 mA*, VIN = VEN = 2.0 V Outputs Open, VIN = 0.8 V, VEN = 2.0 V Clamp Diode Forward Voltage VF IF = 1.0 A IF = 1.5 A Clamp Diode Leakage Current IR VR = 60 V, VIN = VEN = 2.0 V, D1 + D2 or D 3 + D4 Min. -- -- 35 -- -- -- 2.0 -- -- -- -- -- -- -- -- Max. 100 100 -- 200 400 600 -- 0.8 20 -10 65 15 1.6 2.0 50 Units A A V mV mV mV V V A A mA mA V V A
* Pulse test, allowable package power dissipation will be exceeded at increased ambient temperatures. All inputs simultaneously, all other tests are performed with each input tested separately.
2543 PROTECTED QUAD POWER DRIVERS
TYPICAL OUTPUT BEHAVIOR CIRCUIT DESCRIPTION AND APPLICATION
INCANDESCENT LAMP DRIVER For incandescent lamp applications, the UDx2549B/EB or UDx2559B/EB, with improved shortcircuit protection and thermal limiting, are recommended. INDUCTIVE LOAD DRIVER 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. For rapid current decay (fast turn-OFF speeds), the use of Zener diodes will raise the flyback voltage and improve performance. However, the peak voltage must not exceed the specified minimum sustaining voltage (VSUPPLY + VZ + VF V OUT(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 diverted, 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 (IOUT 2.4/VSUPPLY). If the fault condition is corrected, the output stage will return to its normal saturated condition. Due to the independent operation of the four channels, only a single channel should be shorted at a time. Multiple overload conditions may be tolerated provided rated package power dissipation is not exceeded.
NOT TO SCALE
OUTPUT CURRENT
SHORT CIRCUIT
NORMAL LOAD CURRENT LIMIT (12 V SUPPLY) CURRENT LIMIT (24 V SUPPLY)
TIME
Dwg. WP-013-1
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
2543 PROTECTED QUAD POWER DRIVERS
UDN2543B and UDQ2543B Dimensions in Inches (controlling dimensions)
0.020 0.008
16
NOTE 4
9
0.430 0.280 0.240
MAX
0.300
BSC
1 0.070 0.045
0.100 0.775 0.735
BSC
8 0.005
MIN
0.210
MAX
0.015
MIN
0.150 0.115 0.022 0.014
Dwg. MA-001-17A in
Dimensions in Millimeters (for reference only)
0.508 0.204
16
NOTE 4
9
10.92 7.11 6.10
MAX
7.62
BSC
1 1.77 1.15
2.54 19.68 18.67
BSC
8 0.13
MIN
5.33
MAX
0.39
MIN
3.81 2.93 0.558 0.356
Dwg. MA-001-17A mm
NOTES: 1. 2. 3. 4.
Exact body and lead configuration at vendor's option within limits shown. Lead spacing tolerance is non-cumulative Lead thickness is measured at seating plane or below. Webbed lead frame. Leads 4, 5, 12, and 13 are internally one piece.
2543 PROTECTED QUAD POWER DRIVERS
UDN2543EB and UDQ2543EB Dimensions in Inches (controlling dimensions)
18 12
0.013 0.021 0.219 0.191
19
11
0.050
BSC
0.026 0.032 0.456 0.450 0.495 0.485
INDEX AREA
0.219 0.191
25
5
26 0.020
MIN
28
1
4
0.165 0.180
0.456 0.450 0.495 0.485
Dwg. MA-005-28A in
Dimensions in Millimeters (for reference only)
18 12
0.331 0.533 5.56 4.85
19
11
1.27
BSC
0.812 0.661 11.58 11.43 12.57 12.32
INDEX AREA
5.56 4.85
25
5
26 0.51
MIN
28
1
4
4.57 4.20
11.582 11.430 12.57 12.32
Dwg. MA-005-28A mm
NOTES: 1. Exact body and lead configuration at vendor's option within limits shown. 2. Lead spacing tolerance is non-cumulative 3. Webbed lead frame. Leads 5 through 11 and 19 through 25 are internally one piece.
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
2543 PROTECTED QUAD POWER DRIVERS
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 design of its products. The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
2543 PROTECTED QUAD POWER DRIVERS
POWER SINK DRIVERS SELECTION GUIDE
IN ORDER OF 1) OUTPUT CURRENT, 2) OUTPUT VOLTAGE, 3) NUMBER OF DRIVERS
Output Ratings * mA
100
Features
Serial Latched Diode Saturated Input Drivers Clamp Outputs - - - X X X - - X X - X - - X - Hall Sensor/Driver X - - - X - - - X - - - X X Hall Sensor/Driver - X - - X X - - X - - - X - - X X - - - X - - - X - - X X - X X - - X X - - X X X - X X X - - - X - - - X - Dual 4 to 14-Line Decoder/Driver - - - - X - - X X - - X X - - X X Hall Sensor/Driver X X Hall Sensor/Driver X X Stepper Motor Controller/Driver MOS Microstepping Controller/Driver MOS Stepper Motor Translator/Driver - - - X - - - X - X X - - - - X - - - X - Stepper Motor Controller/Driver MOS - - X - - - X - Internal Protection - - - - X - - - - X - - - - - - - - - - - - - X X X - X X - - X - - X - - - - -
V
20 30 40 135 45 50 50 50 60 60 95 95 50 50 50 50 50 80 50 80 95 95 30 60 60 60 50 14 26 46 46 50 50 80 50 50 50 46 50 80
#
8 32 32 7 1 7 8 8 2 4 7 8 4 7 8 8 8 8 8 8 7 8 28 4 4 4 8 2 2 4 4 4 4 4 9 4 4 4 4 4
Part Number
2595 5833 5832 7003 5140 2003 2803 2596 5275 2557 2023 2823 5800 2004 2804 5801 5821 5822 5841 5842 2024 2824 6817 2547 2549 2543 and 2559 2597 3625 3626 7024 and 7029 7042 5804 2064 and 2068 2065 and 2069 5829 2544 2540 7026 2878 2879
250 300
350
450 600 700 750 900 1000 1200 1250 1500 1600 1800 3000 4000 *
Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits or over-current protection voltage limits. Complete part number includes additional characters to indicate operating temperature range and package style.
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

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