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BA6817F Datasheet Fan Motor Driver Ic

Manufacturer: ROHM

Overview: Motor driver ICs Fan motor driver IC BA6817F / BA6818FS The BA6817F and BA6818FS are 24V motor drivers for 2-phase, half-wave fan motors. The ICs have lock detection and automatic restart functions. In pact SOP8 (BA6817F) and SSOP-A16 (BA6818FS) packages, the ICs reduce the number of external ponents required.

Datasheet Details

Part number BA6817F
Manufacturer ROHM
File Size 97.81 KB
Description Fan motor driver IC
Datasheet BA6817F_Rohm.pdf

General Description

s 718 Motor driver ICs FHall input / output truth table BA6817F / BA6818FS FInput / output circuits FElectrical characteristics (unless otherwise noted, Ta = 25_C) 719 Motor driver ICs FCircuit operation The BA6817F and BA6818FS 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 BA6817F / BA6818FS (Typical value) where VLDCL is the LD-pin clamp voltage (2.45V), (1.05V), VLDCP is the LD-pin parator voltage (2.64µA), ILDC is the LD-pin charge current (0.48µA), ILDD is the LD-pin discharge current C is the capacitance of the LD-pin external capacitor.

Key Features

  • 1) Built-in power transistors. 2) Lock detection and automatic restart functions. 3) Thermal shutdown circuit. FAbsolute maximum ratings (Ta = 25_C) 4) Alarm output pin. (BA6817F / BA6818FS) 5) Hall signal output pin. (BA6818FS) FRecommended operating conditions (Ta = 25_C) 717 Motor driver ICs FBlock diagram BA6817F / BA6818FS FPin.

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