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TA8405S Datasheet Dual Bridge Driver

Manufacturer: Toshiba

Overview: TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8405S TA8405S Sequential Dual-Bridge Driver (Driver for Switching between Forward and Reverse Rotation) for DC Motor The TA8405S can control a DC motor in four different modes (forward rotation, reverse rotation, stop, and brake), using its bridge driver best suited for switching between forward and reverse rotation. The IC can deliver an output current of 0.4 A (AVE.) and 1.0 A (PEAK). It has a circuit configuration best suited especially for VCR front loading and tape loading.

General Description

Input terminal Input terminal Input terminal Output terminal GND terminal Output terminal Output terminal Supply voltage terminal for motor drive Supply voltage terminal for logic Function Specification (1) Input circuit (2) Output circuit TA8405S Function Input IN 1 IN 2 IN 3 OUT C 0 0 1/0 ∞ 1 0 0H 101L 0 1 0H 011L 1 1 1/0 L ∞: High impedance Note: Inputs are all low active type.

Output OUT A ∞ L H ∞ ∞ L OUT B ∞ ∞ ∞ L H L Mode MA MB STOP STOP CW/CCW STOP CCW/CW STOP STOP CW/CCW STOP CCW/CW BRAKE BRAKE 2 2003-08-12 Maximum Ratings (Ta = 25°C) TA8405S Characteristics Supply voltage Motor drive voltage Output current PEAK AVE.

Power dissipation Operating temperature Storage temperature Note 1: Duty 1/10, 100 ms Note 2: No heat sink Symbol VCC VS IO (PEAK) IO (AVE.) PD Topr Tstg Rating 25 25 1.0 (Note 1) 0.4 0.75 (Note 2) −30 to 75 −55 to 150 Un

Key Features

  • Wide range of operating voltage: VCC (opr. ) = 4.5 to 22 V VS (opr. ) = 0 to 22 V Weight: 0.92 g (typ. ) No malfunction occurs even if VCC is higher than VS or vice versa. However, observe Vref ≤ VS. Output current up to 0.4 A (AVE. ) and 1.0 A (PEAK) Built.
  • in thermal shutdown circuit Panch-through current restriction circuit Built-in back electromotive force absorber diode Built-in hysteresis circuit Block Diagram 1 2003-08-12 Pin Function Pin No. 1 2 3 4 5 6 7 8 9 Symbol IN1 IN.

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TA8405S Distributor