ZXBM2001(2002) データシートの表示（PDF） - Zetex => Diodes

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ZXBM2001
(Rev.:2002)

VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER

Zetex => Diodes 

ZXBM2001

ZXBM2002 ZXBM2003

When driving fans with bipolar transistors, at higher

voltages it may be necessary to provide extra noise

protection by the addition of a diode from the driver

collector to Gnd on each phase. This prevents negative

voltage excursions from the windings affecting

operation. See Figure 3 right, showing the placement

of these diodes. It should be noted that these are not

required for the MOSFET solution in Figure 2 as the

diodes are inherent in the MOSFET structure.

TYPICAL APPLICATION (ZXBM2001)

illustrating addition of Clamp diodes.

Zetex provide a variety of suitable power transistors for

using with the ZXBM200x series of 2-phase DC

brushless motor pre-drivers and suitable devices

sufficient for a range of applications are given in the

following table.

Figure 3

SUMMARY TABLE OF SUITABLE DEVICES

Bipolar Types

VCEO (V)

IC (A)

FZT1053A

75

4.5

FZT851

60

6

ZXT13N50DE6

50

4

min HFE @ IC

300 @ 0.5A

100 @ 2A

300 @ 1A

VCE(sat)max

(mV)

@ IC & IB

200@1A,10mA

100@1A,10mA

100@1A,10mA

Package

SOT223

SOT223

SOT23-6

MOSFET Types

BVDSS (V)

ZXMN3A04DN82 3

30

ZXMN6A09DN82 3

60

ID (A)

7.6

5

IPEAK (A)

(Pulsed)

25

17.6

RDS(on) (mW)

@ VGS

20 @ 10V

45 @ 10V

Notes:

1 Contact your nearest Zetex office for further details and technical enquiries.

2 Dual device

3 Provisional information

4 Advanced information

Package

SO8

SO8

ISSUE 1 - APRIL 2002

7

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