UGQ5140 datasheet -

Details, datasheet, quote on part number: UGQ5140
PartUGQ5140
CategoryAnalog & Mixed-Signal Processing
Description
CompanyAllegro Micro Systems, Inc.
DatasheetDownload UGQ5140 Datasheet
  

 

Features, Applications

The UGQ5140K unipolar Hall effect switch is a monolithic integrated circuit designed for magnetic actuation of low-power incandescent lamps or inductive loads such as relays or solenoids. Included on chip is a Darlington power output that is capable of continuously sinking in excess of 300 mA. Internal protection circuitry limits surge (lamp turn-ON) or fault currents to approximately 900 mA. A sensitive magnetic threshold allows the device to be used in conjunction with inexpensive magnets or in applications that require relatively large operating distances. Each sensor/driver includes a magnetic sensing Hall voltage generator, operational amplifier, Schmitt trigger, voltage regulator, and an open-collector, high-gain Darlington power output stage. The regulator allows use of the device with supply voltages 28 V. On-chip compensation circuitry stabilizes switch-point performance over temperature. The magnetic operation of this device is similar to that of the A3141E-- Hall-effect switch. The sensitive magnetic switch point coupled with the power output, current limiting, and thermal limiting circuitry allow the UGQ5140K to magnetically actuate various loads without requiring any external components. The UGQ5140K is rated for operation over an extended temperature range It is supplied in a four-pin mini-SIP plastic package, 0.200" (5.08 mm) wide, 0.130" (3.30 mm) high, and 0.060" (1.54 mm) thick.

Pinning is shown viewed from branded side.

Supply Voltage, VCC. 28 V Reverse Battery Voltage, VRCC. -45 V Output OFF Voltage, VOUT. 45 V Over-Current Protected Output Voltage, VOUT. 25 V Output ON Current, IOUT. 900 mA* Magnetic Flux Density, B. Unlimited Package Power Dissipation, PD. See Graph Operating Temperature Range, TA. to +85�C Storage Temperature Range, TS. to +150�C

* Output is current limited at approximately 900 mA and junction temperature limited if current in excess mA is attempted. See Circuit Description and Applications for further information.

FEATURES

s Magnetically Actuated Power Switch s Temperature-Compensated Switch Points s High Current-Sink Capability 300 mA Continuous 900 mA Peak Current Limit s Output Short-Circuit Protection s Low Quiescent Standby Current s Linear Thermal Limiting s Automotive Temperature Range to +85�C, Operating s Internal Inductive Flyback/Clamp Diode Protection s Reverse Battery Protection s Low-Profile 4-Pin Mini-SIP

Characteristic Supply Voltage Range Output Leakage Current Output Sustaining Voltage Output Saturation Voltage Over-Current Limit Output Rise Time Output Fall Time Supply Current Diode Forward Voltage Diode Leakage Current Thermal Limit Symbol VCC IOUT VOUT(SUS) VOUT(SAT) ILIMIT tr tf ICC VF IR TLIMIT Test Conditions Operating VOUT 24 V IOUT 100 mA IOUT = 300 mA, VCC 24 V VCC = VOUT 500 G VCC 12 V, VBB 20 pF Output OFF 35 V VCC = VOUT 500 G, IOUT 10 mA

= +25�C Characteristic Magnetic Operate Point Magnetic Release point Hysteresis Symbol BOP BRP Bhys Min. 50 20 Typ. 100 55 Max. to +85�C Min. 25 20 Typ. Max. 240 220 Units G

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 853-5000 W Copyright 1991, 1995 Allegro MicroSystems, Inc.



 

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