Datasheet4U Logo Datasheet4U.com

BA6819AF Datasheet 2-phase half-wave motor driver

Manufacturer: ROHM

📥 Download Datasheet

General Description

s FHall input / output truth table 707 Motor driver ICs FInput / output circuits BA6809F / BA6819AF FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 3V) 708 Motor driver ICs FCircuit operation The BA6809F and BA6819AF have motor lock detection and automatic restart circuits.

The timing of lock detection and automatic restart is determined by the external capacitor connected to the LD pin.

The charge time of the external capacitor is given by : ton (Charge time)= toff (Discharge time)= C S (VLDCL*VLDCP) ILDC C S (VLDCL*VLDCP) ILDD BA6809F / BA6819AF (Typical value) where VLDCL is the LD-pin clamp voltage (1.90V), VLDCP is the LD-pin comparator voltage (0.73V), (2.2µA), ILDC is the LD-pin charge current (0.42µA), ILDD is the LD-pin discharge current C is the capacitance of the LD-pin external capacitor.

Overview

Motor driver ICs 2-phase half-wave motor driver BA6809F / BA6819AF The BA6809F and BA6819AF are motor drivers designed for 3V and 5V fan motors.

Built-in output transistors reduce the number of external components required.

The ICs have an alarm output pin (BA6809F) and Hall output pin (BA6819AF).

Key Features

  • 1) Lock detection and rotational speed sensing mechanisms are built in. 2) Alarm output pin (BA6809F) and Hall output pin (BA6819AF). FAbsolute maximum ratings (Ta = 25_C) 3) Built-in thermal shutdown circuit. 4) Operation assured with a supply voltage as low as 2.7V. 5) Compact 8-pin SOP package. FRecommended operating conditions (Ta = 25_C) 706 Motor driver ICs FBlock diagram BA6809F / BA6819AF FPin.

More Datasheets from ROHM

Part Number Description
BA6810F Fluorescent display tube level meter driver/ 12-point x 2 channel/ VU scale/ bar display
BA6810S Fluorescent display tube level meter driver/ 12-point x 2 channel/ VU scale/ bar display
BA6811F Fan motor driver IC
BA6813F Fan motor driver IC
BA6817F Fan motor driver IC
BA6818FS Fan motor driver IC
BA6800AF Fluorescent display tube level meter driver/ 16-point x 2 channel/ VU scale/ bar display
BA6800AS Fluorescent display tube level meter driver/ 16-point x 2 channel/ VU scale/ bar display
BA6803S Fluorescent display tube level meter driver/ 16-point x 2 channel/ VU scale/ bar display
BA6809F 2-phase half-wave motor driver