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部品型式

A3952SW

製品説明
仕様・特性

Data Sheet 29319.1C 3952 FULL-BRIDGE PWM MOTOR DRIVER A3952SB 16 LOAD SUPPLY 2 15 OUTB RC 3 14 MODE GROUND 4 13 GROUND 12 GROUND 11 SENSE 10 OUTA 9 LOAD SUPPLY BRAKE 1 REF VBB LOGIC GROUND 5 LOGIC SUPPLY 6 PHASE 7 ENABLE VCC 8 VBB Dwg. PP-056 Note that the A3952SB (DIP) and the A3952SLB (SOIC) are electrically identical and share a common terminal number assignment. ABSOLUTE MAXIMUM RATINGS 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 ....................... -0.3 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 ............................... –20°C to +85°C Junction Temperature, TJ ............. +150°C* Storage Temperature Range, TS ............................. –55°C to +150°C Designed for bidirectional pulse-width modulated current control of inductive loads, the A3952S– is capable of continuous output currents to ±2 A and operating voltages to 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. T C 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) or 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. U D O y R nl P D eO e E c d 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 -40°C to +125°C. To order, change the suffix from 'S–' to 'K–'. U en IN r T efe for N R 9 O r C o IS D F FEATURES s s s s s s s s s s U * Fault conditions that produce excessive junction temperature will activate device thermal shutdown circuitry. These conditions can be tolerated but should be avoided. ew n ±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 95 3 A e 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 of +150°C. gn si 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. Always order by complete part number: Part Number A3952SB A3952SEB A3952SLB A3952SW Package RθJA RθJT 16-Pin DIP 28-Lead PLCC 16-Lead SOIC 12-Pin Power-Tab SIP 43°C/W 36°C/W 90°C/W 36°C/W 6.0°C/W 6.0°C/W 6.0°C/W 2.0°C/W

ブランド

ALLE

現況

Rockwell International purchases Allen-Bradley, the North American leader in the industrial automation equipment market, for $1.651 billion, marking the largest acquisition in Wisconsin's history. (February 20, 1985)

会社名

Allen-Bradley

本社国名

U.S.A

事業概要

ロックウェル・オートメーションがお届けするアレン・ブラドリーの製品ラインは、生産性と柔軟性の向上に役立ちます。110年以上に及ぶ革新と品質の歴史を誇るアレン・ブラドリーの製品ラインナップは、性能の最適化に必要なオートメーションコンポーネントと統合制御システムを提供します。

供給状況

 
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型式 数量 D/C・lead 備考 選択
A3952SW 6個 9604 N/A

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