BA6849 View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

View to exact match

BA6849

3-phase motor driver for CD-ROMs

ROHM Semiconductor 

Motor driver ICs

BA6849FP / BA6849FP-Y / BA6849FM / BA6849FS

FOperation notes

(1) Power save

The power save input is an I / O circuit like the own

shown in Fig.1.

The thermal derating characteristics of the power save

pin is –8mV / _C, and the resistance will fluctuate be-

tween ±30% so be careful of the input voltage range.

(2) Hall input

The input circuit shown in Fig.4 is used for the Hall inputs.

The Hall elements can be connected either in series or

in parallel.

(3) Thermal shutdown (TSD)

When the junction temperature reaches 175_C, the A1,

A2, and A3 coil outputs go open circuit. The thermal shut-

down has approximately 15_C of hysteresis.

FElectrical characteristics curves

873

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