TA8490(2001) 查看數據表（PDF） - Toshiba

零件编号

产品描述 (功能)

生产厂家

TA8490
(Rev.:2001)

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT MULTI−CHIP

Toshiba 

Hall element bias circuit

TA8490F

The hall element bias current is turned off when the driver IC is in standby state.

Make sure that the negative hall bias line is connected to the HB pin.

The remaining voltage is as follows :

VHB = 1.2 [V] (typ.) at IHB = 10 mA

Furthermore, this circuit cannot be used if FG output is necessary in standby state.

When the HB terminal is not used, the negative hall bias line must be connected to GND with a resistor in

between.

FG amp circuit

This circuit uses a hall element signal which is output to FGO after a Schmitt stage.

The FG amp has a hysteresis of 20 [mVp−p] (typ.) and its output voltages are

High level : VCC − 0.5~VCC [V]

Low level : GND~0.5 [V] at IOFG = 10 µA

The FG amp is active when it is in standby state. When the hall element signal is input, the FG signal is

output.

11

2001-06-13

Share Link: