Details, datasheet, quote on part number: UDN2987A
CategoryDiscrete => Solid State relays => Relay/Solenoid/Lamp
Description8-Channel Source Driver With Over-current Protection
CompanyAllegro Micro Systems, Inc.
DatasheetDownload UDN2987A datasheet
Find where to buy


Features, Applications

Providing over-current protection for each of its eight sourcing outputs, the UDN2987A and UDN2987LW drivers are used as an interface between standard low-level logic and relays, motors, solenoids, LEDs, and incandescent lamps. The device includes thermal shutdown and output transient protection/clamp diodes for use with sustaining voltages 35 V.

In these drivers, each channel includes a latch to turn OFF that channel if the maximum channel current is exceeded. All channels are disabled if the thermal shutdown is activated. A common FAULT output is used to indicate either chip thermal shutdown or any overcurrent condition. All outputs are enabled by pulling the common OE/R input high. When OE/R is low, all outputs are inhibited and the eight latches are reset. Under normal operating conditions, each of eight outputs will source in excess 100 mA continuously at an ambient temperature of 25C and a supply 35 V. The over-current fault circuit will protect the device from short-circuits to ground with supply voltages 35 V. The inputs are compatible with 5 V and 12 V logic systems--TTL, Schottky TTL, DTL, PMOS, and CMOS. In all cases, the output is switched by an active high input level. The UDN2987A is supplied a 20-pin dual in-line plastic package; the UDN2987LW is supplied a 20-lead small-outline plastic package.

Note that the UDN2987A (DIP) and the UDN2987LW (SOIC) are electrically identical and share a common terminal number assignment.

Driver Supply Voltage, VS..................... 35 V Output Sustaining Voltage, VCE(sus)...... 35 V Continuous Output Current, IOUT........................................ -500 mA* FAULT Output Voltage, VCE................. 35 V FAULT Output Current, lC................. 30 mA Input Voltage, VIN.................................. 15 V Package Power Dissipation, PD........................................ See Graph Operating Temperature Range, TA................................. to +85C Storage Temperature Range, TS............................... to +150C


350 mA Output Source Current Over-Current Protected Internal Ground Clamp Diodes Output Breakdown Voltage 35 V, Minimum TTL, DTL, PMOS, or CMOS Compatible Inputs Internal Thermal Shutdown Automotive Capable

Always order by complete part number: Part Number UDN2987A UDN2987LW Package 20-Pin DIP 20-Lead Wide-Body SOIC

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts (508) 853-5000 Copyright 1987, 2003 Allegro MicroSystems, Inc.

Characteristic Functional Supply Range Output Leakage Current Output Sustaining Voltage Output Saturation Voltage Symbol VS ICEX VOUT(sus) VOUT(SAT) VIN 0.4 V* IOUT = -350 mA, 2.0 mH VIN 2.4 V, IOUT -100 mA VIN 2.4 V, IOUT -225 mA VIN 2.4 V, IOUT -350 mA Channel Shutdown Threshold FAULT Leakage Current FAULT Saturation Voltage Input Voltage IM ICEX VCE(SAT) VIN(ON) VIN(OFF) Input Current IIN(ON) VIN 2.4 V VIN 5.0 V VIN 12 V IIN(OFF) Clamp Diode Leakage Current Clamp Diode Forward Voltage Supply Current IR VF IS(ON) IS(OFF) Thermal Shutdown Thermal Hysteresis Propagation Delay Time TJ tPLH tPHL Dead Time *AII inputs simultaneously. = 100 VIN 350 mA VIN = 2.4 V*, Outputs Open VIN 0.4 V* VIN 2.4 V VCC 30 mA Test Conditions Min. Typ. Limits Max. Units C s


Some Part number from the same manufacture Allegro Micro Systems, Inc.
UDN2987LW 8-Channel Source Driver With Over-current Protection
UDN2993B Dual H-bridge Motor Drivers
UDN2998W Dual Solenoid PWM Motor Driver
UDN3625M Dual H-bridge Motor Drivers
UDN3626M Dual H-bridge Motor Drivers
UDN3718M Low-votage Audio Power Amplifier
UDN5713M Dual Peripheral And Power Driver
UDQ2543B Protected Quad Power Driver
UDQ2547B Bimos ii 32-Bit Serial-input Latched Drivers
UDQ2549B Protected Quad Power Driver
UDQ2549EB Bimos ii 8-Bit Serial-input Latched Drivers
UDQ2559B Protected Quad Power Driver

3235 : Dual-output Hall-effect Switch

UDN2917EB : PWM Specific Dual Full-bridge PWM Motor Driver

ULN2024A : High Voltage High-voltage, High-current Darlington Arrays

A3250 : Field-programmable, Chopper-stabilized Unipolar Hall-effect Switches

2460A : Electronic Ignition Timing

A4984SESTR-T : DMOS Microstepping Driver With Translator And Overcurrent Protection The A4984 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes. Step modes are selectable by MSx lo

A8583KLPTR-T : Wide Input Voltage, 2.4 MHz, 3.5 A Asynchronous Buck Regulator The A8583 is an adjustable frequency, high output current, PWM regulator that integrates a low resistance, high-side, N-channel MOSFET. The A8583 incorporates current-mode control to provide simple compensation, excellent loop stability

A4970SLBTR-T : Pmic - Motor And Fan Controllers, Driver Integrated Circuit (ics) Tape & Reel (TR) 750mA 4.75 V ~ 5.25 V; IC PWM MOTOR DVR FULL 24-SOICW Specifications: Applications: DC Motor Driver, PWM Motor Driver, Stepper Motor Driver ; Number of Outputs: 1 or 2 ; Voltage - Supply: 4.75 V ~ 5.25 V ; Voltage - Load: 7.45 V ~ 45 V ; Current - Output: 750mA ; Operating Temperature: -20C ~ 85C ; Package / Case: 24-SOIC (0.295", 7.50mm Width) ; Pac

Same catergory

2SC3604 : NPN Epitaxial Silicon Transistor For Microwave Low-noise Amplification.

GA150 : Low Voltage < 600 Volts. Ultra-fast (tm) Speed Igbt. Generation 4 IGBT technology Standard: Optimized for minimum saturation voltage and operating frequencies to 10kHz Very low conduction and switching losses HEXFREDTM antiparallel diodes with ultra- soft recovery Industry standard package UL approved Increased operating efficiency Direct mounting to heatsink Performance optimized for power conversion:.

HE9012 : 40V 500mA PNP Epitaxial Planar Transistor For Use in 1W Amplifier.

KV1841E : Variable Capacitance Diode. Very Small URD Surface Mount Package Very Low Series Resistance Large Capacitance Ratio = 2.35) Excellent Linearity (CV Curve) Very Small Capacitance Deviation at Tape/Reel APPLICATIONS Communications Equipment Multi-Channel Cordless Telephone Voltage Controlled Oscillator UHF Wireless Communication Systems The is a variable capacitance diode designed.

MC1413 : High Voltage. High Voltage, High Current Darlington Transistor Arrays.

MDI75-12A3 : Igbt Modules Short Circuit Soa Capability Square Rbsoa. Symbol VCES VCGR VGES VGEM IC25 IC80 ICM tSC (SCSOA) RBSOA Ptot TJ Tstg VISOL Conditions to 150C; RGE 20 kW Continuous Transient 1 ms VGE 15 V, VCE = VCES, 22 W, non repetitive VGE 22 W Clamped inductive load, = 25C NPT IGBT technology low saturation voltage low switching losses switching frequency to 30 kHz square RBSOA, no latch up high short circuit.

TC03A-200 : . TM Battery Tracking TransClampTM For SLIC Linecard Protection The battery tracking TransClamp series of transient voltage suppressors (TVS) are designed to protect subscriber line interface circuits (SLIC) from transient voltages resulting from lightning strikes and AC power line disturbances. The TC03A-200 integrates all the components necessary to protect.

TDA16850-2 : Highly Efficient Power Supply Controllers With Low Power Stand-by And Power Factor Correction (PFC) Capabilities..

TGF4230 : GaAs. DC - 12 GHZ Discrete HFET. Nominal Pout of 28.5 dBm at 8.5 GHz Nominal Gain at 8.5 GHz Nominal PAE at 8.5 GHz 1200 m HFET x 0.004 in) Bias at 8 Volts, 96 mA Cellular Base Stations High dynamic-range LNAs Military and Space The TriQuint is a single gate 1.2 mm Discrete GaAs Heterostructure Field Effect Transistor (HFET) designed for high-efficiency power applications to 12 GHz in Class.

NTTFS4945N : Power MOSFET 30V 34A 9 MOhm Single N-Channel U8FL Power MOSFET 30V 34A 9 mOhm Single N-Channel u8FL.

V15P45S : Photovoltaic Solar Cell Protection Schottky Rectifier Photovoltaic Solar Cell Protection Schottky Rectifiere.

05002-2R0CCMB : CAPACITOR, CERAMIC, MULTILAYER, 200 V, BP, 0.000002 uF, SURFACE MOUNT, 0603. s: Configuration / Form Factor: Chip Capacitor ; Technology: Multilayer ; Dielectric: Ceramic Composition ; RoHS Compliant: Yes ; Capacitance Range: 2.00E-6 microF ; Capacitance Tolerance: 12 (+/- %) ; WVDC: 200 volts ; Temperature Coefficient: 30 ppm/°C ; Mounting Style:.

FSQ510RJ : RESISTOR, FUSIBLE, FILM, 5 W, 5 %, 300 ppm, 10 ohm, THROUGH HOLE MOUNT. s: Category / Application: Fusible Resistor, General Use ; Technology / Construction: Wirewound ; Mounting / Packaging: ThroughHole, Axial Leads, AXIAL LEADED, ROHS COMPLIANT ; Resistance Range: 10 ohms ; Tolerance: 5 +/- % ; Temperature Coefficient: 300 ±ppm/°C ; Power Rating:.

VJ0402G123MXXAC31 : CAPACITOR, CERAMIC, MULTILAYER, 25 V, X5R, 0.012 uF, SURFACE MOUNT, 0402. s: Configuration / Form Factor: Chip Capacitor ; Technology: Multilayer ; Applications: General Purpose ; Electrostatic Capacitors: Ceramic Composition ; RoHS Compliant: Yes ; Capacitance Range: 0.0120 microF ; Capacitance Tolerance: 20 (+/- %) ; WVDC: 25 volts ; Mounting Style:.

550-8640-01-01-36 : 1 ELEMENT, 0.1 uH, GENERAL PURPOSE INDUCTOR. s: Devices in Package: 1 ; Lead Style: Axial, WIRE ; Application: General Purpose, RF Choke ; Inductance Range: 0.1000 microH ; Rated DC Current: 1600 milliamps ; Operating Temperature: -55 to 105 C (-67 to 221 F).

0-C     D-L     M-R     S-Z