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LB1947 - PWM Current Control Type DC Motor Driver

General Description

Pin number 1 3 2 4 5 8 9 Pin name OUTA OUTA E VI ST IN1 IN2 Equivalent circuit Output pin Sense voltage control pin VI High : sense voltage is 2/5 of VREF Low : sense voltage is 1/5 of VREF ST High : circuit operation ON Low : standby mode IN1 High : rotation mode Low : brake mode IN2 High

Key Features

  • PWM current control (fixed OFF time).
  • Selectable current decay pattern (FAST, SLOW, and MIX DECAY modes).
  • Simultaneous ON prevention function (feedthrough current prevention).
  • Built-in thermal shutdown circuit.
  • Built-in noise canceler Package Dimensions unit: mm 3249-SIP13HJ [LB1947] 25.6 C0.7 φ 3.4 φ 2.0 2.4 (10.0) 2.0min 1 (0.8) 2.0 0.5 1.15 13 3.5 (13.9) 12.2 (12.8) 16.4max 0.4 1.2 Specifications Absolute Maximum Ratings at Ta = 25°C P.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Ordering number : ENN*6192 LB1947 Monolithic Digital IC LB1947 PWM Current Control Type DC Motor Driver Preliminary Features • PWM current control (fixed OFF time) • Selectable current decay pattern (FAST, SLOW, and MIX DECAY modes) • Simultaneous ON prevention function (feedthrough current prevention) • Built-in thermal shutdown circuit • Built-in noise canceler Package Dimensions unit: mm 3249-SIP13HJ [LB1947] 25.6 C0.7 φ 3.4 φ 2.0 2.4 (10.0) 2.0min 1 (0.8) 2.0 0.5 1.15 13 3.5 (13.9) 12.2 (12.8) 16.4max 0.4 1.