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Part: A2543
Category:
Description: Protected Quad Power Driver
Company: Allegro Micro Systems, Inc.
Datasheet: Download A2543 datasheet File size : 192 kB
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Datasheet text preview:
2543
UDN/UDQ2543B (DIP)
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
PROTECTED QUAD POWER DRIVER
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 -20°C to +85°C (UDN2543B/ EB) or for use in automotive applications over an extended temperature range as the UDQ2543B/EB.
Data Sheet 29317.2B*
Dwg. PP-017-1
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 . . . . . . . . . . 18 V Package Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . See Graph Operating Temperature Range, TA (UDN2543B/EB) . . . . -20°C to +85°C (UDQ2543B/EB) . . . . -40°C to +85°C Storage Temperature Range, TS . . . . . . . . . . . . . . . -55°C to +150°C
*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 -20°C to +85°C -20°C to +85°C -40°C to +85°C -40°C to +85°C
2543 PROTECTED QUAD POWER DRIVER
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 (PLCC)
10
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
OUT2 OUT1 NO CONNECTION ENABLE 26
IN 1 28
8
R
JT
K
= 6°C/W
GROUND 5 6 7 8
NC 25 24 23 22 21 20 19 NC
15 12 13 14 16 17
27
4
2
3
1
IN 2
GROUND
6
4
SUFFIX 'EB', R
JA
= 36°C/W
9 10
2
SUFFIX 'B', R JA = 43°C/W
GROUND
11 VCC
18
GROUND
NO CONNECTION
OUT 4
OUT 3
IN 4
IN 3
K
25
50
75 100 TEMPERATURE IN °C
125
150
Dwg. GP-004-1A
SUPPLY
0
Dwg. PP-019-1
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1986, 2002 Allegro MicroSystems, Inc.
2543 PROTECTED QUAD POWER DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C (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 V OUT(SUS) V OUT(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 I CC 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
Min. -- -- 35 -- -- -- 2.0 -- -- -- -- -- -- -- --
Max. 100 100 -- 200 400 600 -- 0.8 20 -10 65 15 1.6 2.0 50
Units µA µA V mV mV mV V V µA µA mA mA V V µA
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 D3 + D4
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. * 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 DRIVER
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 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 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 DRIVER
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.
Others parts begin by a2
A2-1 A2-2 A2-3 A2-4
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