LB1947 Datasheet (Sanyo) - PWM Current Control Type DC Motor Driver

LB1947, PWM Current Control Type DC Motor Driver

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

LB1947 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