View UDK2547_60228.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

2547 PROTECTED QUAD POWER DRIVERS
2547
PROTECTED QUAD POWER DRIVERS
Providing interface between low-level logic and power loads, the UDK/UDN/UDQ2547B and UDK/UDN/UDQ2547EB quad power drivers combine logic gates and high-current bipolar outputs with complete output protection. Each of the four outputs will sink 600 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 and include internal pull-down resistors to ensure that the outputs remain OFF if the inputs are open-circuited. Over-current protection for each channel has been designed into these devices and is activated at approximately 1.3 A. It protects each output from short circuits with supply voltages up to 25 V. When a maximum driver output current is reached, that output drive is reduced linearly, maintaining a constant load current. If the over-current or short circuit condition continues, each channel has an independent thermal limit circuit which will sense the rise in junction temperature and turn OFF the individual channel that is at fault. Foldback circuitry decreases the output current if excessive voltage is present across the output and assists in keeping the device within its SOA (safe operating area). Each output also includes diagnostics for increased device protection. If any output is shorted or opened, the diagnostics can signal the controlling circuitry through a common FAULT pin. These devices can be used to drive various resistive loads including incandescent lamps (without warming or limiting resistors). With the addition of external output clamp diodes, they can be used to drive inductive loads such as relays, solenoids, or dc stepping motors. The suffix `B' devices are 16-pin power DIPs while the suffix `EB' devices are 28-lead power PLCCs for surface-mount applications. Both packages are of batwing construction to provide for maximum package power dissipation.
Data Sheet 29317.4C
UDx2547B
FAULT OUT1 OUT2 GROUND GROUND OUT3 NO CONNECT. OUT4 1 2 3 4 5 6 7 8 V CC 16 15 14 13 12 11 10 9 IN 1 IN2 ENABLE GROUND GROUND SUPPLY IN 3 IN 4
Dwg. PP-018A
ABSOLUTE MAXIMUM RATINGS
at TA = 25C
Output Voltage, VOUT ............................ 60 V Over-Current Protected Output Voltage, VOUT ............................................... 25 V Output Current, IOUT .......................... 1.3 A* FAULT Output Voltage, VF ................... 40 V Supply Voltage, VCC ............................ 7.0 V Input Voltage, VIN or VEN ...................... 7.0 V Package Power Dissipation, PD ........................................ See Graph Operating Temperature Range, TA Prefix `UDK' ............... -40C to +125C Prefix `UDN' ................. -20C to +85C Prefix `UDQ' ................. -40C to +85C Storage Temperature Range, TS ............................... -55C to +150C
*Outputs are current limited at approximately 1.3 A per driver and junction temperature limited if current in excess of 1.3 A is attempted. See Circuit Description and Application for further information.
FEATURES
s s s s s Output SOA Protection s Low Output-Saturation Voltage Diagnostic FAULT Output s TTL and 5 V CMOS Compatible Inputs Independent Over-Current Protection for Each Driver Independent Thermal Protection for Each Driver 600 mA Output Current per Channel
Always order by complete part number: a prefix to indicate operating temperature range + the basic four-digit part number + a suffix to indicate package style, e.g., UDK2547EB .
2547 PROTECTED QUAD POWER DRIVERS
UDx2547EB
10
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
OUT2 NO CONNECTION
FAULT
IN 1
R JT = 6C/W
GROUND 5
NC 25 FAULT 6 7 24 23 22 21 20 19 NC NC VCC GROUND GROUND
6
4
SUFFIX 'EB', R
JA
8
= 36C/W
9 10 GROUND 11
2
SUFFIX 'B', R JA = 43C/W
15
12
13
14
16
25
50
NO CONNECTION
NO CONNECTION
OUT 4
OUT 3
IN 4
IN 3
Dwg. GP-004-1A
SUPPLY
75 100 TEMPERATURE IN C
125
150
17
18
0
28
27
26
3
1
8
4
2
IN 2
ENABLE
OUT1
Dwg. PP-019
FUNCTIONAL BLOCK DIAGRAM
FAULT ABLE
COMMON CONTROL ONE OF FOUR DRIVERS
IN N THERMAL SHUTDOWN CURRENT LIMIT
OUTN
<<1
Dwg. FP-007
115 Northeast Cutoff, Box 15036 W Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright (c) 1989, 1993, Allegro MicroSystems, Inc.
2547 PROTECTED QUAD POWER DRIVERS
ELECTRICAL CHARACTERISTICS at TA = +25C (prefix `UDN') or over operating temperature range (prefix `UDK' or `UDQ'), VCC = 4.75 V to 5.5 V
Characteristic Output Leakage Current* Symbol IOUT 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 = 0.8 V, VCC = Open IOUT = 400 mA IOUT = 500 mA IOUT = 600 mA Over-Current Limit Input Voltage IOUT Logic 1 Logic 0 Input Current Logic 1 Logic 0 Fault Output Leakage Current Fault Output Current IF IF 5 ms PulseTest, V OUT = 5.0 V VIN(1) or V EN(1) VlN(0) or V EN(0) VIN(1) or VEN(1) = 2.0 V VIN(0) or VEN(0) = 0.8 V VF = 40 V VF = 40 V, Driver Outputs Open, VIN = 0.8 V, VEN = 2.0 V Fault Output Saturation Voltage Total Supply Current VF(SAT) ICC IF = 30 A All Outputs ON All Outputs OFF Thermal Shutdown Thermal Hysteresis TJ TJ 40 -- -- -- -- -- 60 0.1 45 6.0 165 15 80 0.4 50 10 -- -- A V mA mA C C Min. -- -- 40 -- -- -- -- 2.0 -- -- 10 -- Limits Typ. Max. 30 30 -- -- -- -- 1. 3 -- -- -- -- <1.0 150 150 -- 300 400 550 1.7 -- 0.8 60 -- 2.0 Units A A V mV mV mV A V V A A A
Typical Data is for design information only. *Measurement includes XOR input current and other elements.
TRUTH TABLE
STATUS Normal Load INN H L X H H L ENABLE H H L H H H OUT N L H H R H L FAULT H H H L L L
Over-Current or Short to Supply Thermal Fault Open Load or Short to Ground
X = Don't care.
R = Linear drive, current limited.
2547 PROTECTED QUAD POWER DRIVERS
CIRCUIT DESCRIPTION AND APPLICATION
NORMAL LAMP IN-RUSH CURRENT
NOT TO SCALE
LAMP CURRENT
These devices monitor their outputs for open or shorted conditions. Both conditions are sensed by comparing the input and output states. Note that the FAULT output is operational only if the ENABLE input is high. When a fault condition is sensed, the FAULT output will go to a low state. An external FAULT output filter capacitor (0.1F) is recommended to eliminate erroneous switching. INCANDESCENT LAMP DRIVER
SHORT CIRCUIT CURRENT LIMIT
High incandescent lamp turn-ON/in-rush currents can contribute to poor lamp reliability and destroy semiconductor lamp drivers. Warming (parallel) or current-limiting (series) 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 600 mA can be driven without the need for warming or current-limiting resistors, if lamp turn-ON time is not a concern. When an incandescent lamp is initially turned ON, the cold filament 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 diverted by the shunting transistor, the output stage operates in a linear mode, and the load current is limited to approximately 1.3 A. During lamp warmup, the filament resistance increases to its maximum value, the output driver goes into saturation and applies maximum rated voltage to the lamp. INDUCTIVE LOAD DRIVER With the addition of external clamp diodes, bifilar (unipolar) stepper motors and other inductive loads can be driven directly. The external 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 (V SUPPLY + VZ + VF VOUT(SUS) ). OVER-CURRENT CONDITIONS In the event of a shorted load, or stalled motor, the load current will attempt to increase. As described above, the drive current to the affected output stage is linearly reduced (limiting the load current to about 1.3 A), causing the output stage to go linear. As the junction temperature of the output stage increases, the thermal shutdown circuit will shut OFF the affected output. If the fault condition is corrected, the output driver will return to its normal saturated condition.
THERMAL SHUTDOWN THERMAL HYSTERESIS
TIME
Dwg. WP-005A
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
2547 PROTECTED QUAD POWER DRIVERS
UDN2547B and UDQ2547B
Dimensions in Inches (controlling dimensions)
16
NOTE 4
9
0.020 0.008
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)
16
NOTE 4
9
0.508 0.204
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.
2547 PROTECTED QUAD POWER DRIVERS
UDN2547EB and UDQ2547EB
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
2547 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.
2547 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

▲Up To Search▲

Price & Availability of UDK2547

	To Download UDK2547 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .