A3952SLB
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Manufacturer Part#:

A3952SLB

Product Category: IC Chips
Manufacturer: ALLEGRO
Description:
  datasheetA3952SLB Datasheet
Package: SOP16
Quantity: 10485 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level(MSL): 3(168 Hours)
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Manufacturer: ALLEGRO
Product Category: IC Chips
Features, Applications

Features

BRAKE REF RC GROUND LOGIC SUPPLY PHASE ENABLE LOGIC VBB VCC GROUND SENSE OUTA LOAD SUPPLY VBB LOAD SUPPLY OUTB MODE GROUND

Designed for bidirectional pulse-width modulated current control of inductive loads, the A3952S- is capable of continuous output currents ±2 A and operating voltages 50 V. Internal fixed off-time PWM current-control circuitry can be used to regulate the maximum load current to a desired value. The peak load current limit is set by the user's selection of an input reference voltage and external sensing resistor. The fixed OFF-time pulse duration is set by a user-selected external RC timing network. Internal circuit protection includes thermal shutdown with hysteresis, transient suppression diodes, and crossovercurrent protection. Special power-up sequencing is not required. With the ENABLE input held low, the PHASE input controls load current polarity by selecting the appropriate source and sink driver pair. The MODE input determines whether the PWM current-control circuitry operates in a slow current-decay mode (only the selected sink driver switching) in a fast current-decay mode (selected source and sink switching). A user-selectable blanking window prevents false triggering of the PWM current control circuitry. With the ENABLE input held high, all output drivers are disabled. A sleep mode is provided to reduce power consumption when inactive. When a logic low is applied to the BRAKE input, the braking function is enabled. This overrides ENABLE and PHASE to turn OFF both source drivers and turn ON both sink drivers. The brake function can be safely used to dynamically brake brush dc motors. The A3952S- is supplied in a choice of four power packages. In all package styles, the batwing/power tab is at ground potential and needs no isolation. These devices are also available for operation from +125°C. To order, change the suffix from 'S-' to 'K-'.

Specification

Load Supply Voltage, VBB.................. 50 V Output Current, IOUT (tw 20 μs).................................. ±3.5 A (Continuous)............................... ±2.0 A Logic Supply Voltage, VCC................. 7.0 V Logic Input Voltage Range, VIN....................... V to VCC 0.3 V Sense Voltage, VSENSE...................... 1.5 V Reference Voltage, VREF.................... 15 V Package Power Dissipation, PD....................................... See Graph Operating Temperature Range, TA............................... to +85°C Junction Temperature, TJ............. +150°C* Storage Temperature Range, TS............................. to +150°C


Output current rating may be limited by duty cycle, ambient temperature, heat sinking and/or forced cooling. Under any set of conditions, do not exceed the specified current rating or a junction temperature +150°C. * Fault conditions that produce excessive junction temperature will activate device thermal shutdown circuitry. These conditions can be tolerated but should be avoided.

±2 A Continuous Output Current Rating 50 V Output Voltage Rating Internal PWM Current Control Fast and Slow Current-Decay Modes Sleep (Low Current Consumption) Mode Internal Transient Suppression Diodes Under-Voltage Lockout Internal Thermal Shutdown Circuitry Crossover-Current Protection


Always order by complete part number: Part Number A3952SLB A3952SW Package 16-Pin DIP 28-Lead PLCC 16-Lead SOIC 12-Pin Power-Tab SIP RJA 67°C/W 36°C/W RJT 6.0°C/W 2.0°C/W

Search Part number : "A3952" Included word is 9
Part Number Manufacturer Package Quantity Description
A3952SLBTR ALLEGRO SOP-16 8712
A3952SLBTR-T ALLEGRO SOP-16 72
A3952SW ALLEJRO ZIP12 14138
A3952B ALLEJRO DIP 98
A3952SB ALLEGRO DIP16 17180
A3952SB-1 ALLEGRO DIP 952
A3952SBT ALLEGRO DIP-16 168
A3952SB-T ALLEGRO DIP 22448
A3952SEB ALL PLCC 3295
A3952SLB RELATED PRODUCT PICTURE
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  • A3952SLBTR
  • A3952SLBTR-T
  • A3952SW
  • A3952B
  • A3952SB
  • A3952SB-1
  • A3952SBT
  • A3952SB-T
  • A3952SEB
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