ZXBM2003X10TA datasheet(5/8 Pages) ZETEX

Part #	ZXBM2003X10TA

Description	VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER

Download	8 Pages

Scroll/Zoom	100%

Manufacturer	ZETEX [Zetex Semiconductors]

Direct Link	http://www.diodes.com/

Logo

5 / 8 page

Locked Rotor timing capacitor (CONT).

The CLCK timing periods are determined by the

following equations:

T

VC

I

THH

LCK

LCKC

lock

=

×

T

VV

C

I

THH

THL

LCK

LCKD

off

=

−×

()

T

VV

C

I

THH

THL

LCK

LCKC

on

=

−×

()

Where VTHH and VTHL are the CLCK pin threshold

voltages and ILCKC and ILCKD are the charge and

discharge currents.

As these threshold voltages are nominally set to

VTHH=2V and VTHL=1V the equations can be simplified

as follows:

T

C

I

LCK

LCKC

lock

=

×

2

T=

C

I

on

LCK

LCKC

T

C

I

LCK

LCKD

off

=

8. CPWM - Sets PWM frequency

This pin has an external capacitor attached to set the

PWM frequency for the Phase drive outputs. A

capacitor value of 0.15nF will provide a PWM

frequency of typically 24kHz.

The CLCK timing period (Tpwm) is determined by the

following equation:

T

VV

C

I

VV

C

I

THH

THL

PWM

PWMC

THH

THL

PWM

PWMD

pwm

=

−×

+

−×

()

Where VTHH and VTHL are the CPWM pin threshold

voltages and IPWMC and IPWMD are the charge and

discharge currents.

As these threshold voltages are nominally set to

VTHH=2V and VTHL=1V the equations can be simplified

as follows:

T

C

I

C

I

PWM

PWMC

PWM

PWMD

pwm

=+

9. PH2

- External transistor driver

10. PH1

- External transistor driver

These are the Phase drive outputs and are open

darlington emitter followers designed to provide up to

80mA of drive to external transistors as shown in the

Application circuits following. The external transistors

in turn drive the fan motor windings.

Lock Timing Example:

Using the equation previously described and to be

found under the CLCK pin description:

T

C

I

LCK

LCKC

lock

=

×

2

T

C

I

LCK

LCKC

on

=

T

C

I

LCK

LCKD

off

=

Using a value of CLCK = 1.0uF together with the values

of ILCKC and ILCKD to be found in the Electrical

Characteristics we can derive the following timings for

operation at 12V and 25°C.

T=

21.0 F

2.8 A

lock

×

= 0 714

.

s

T=

1.0 F

0.28 A

off

= 36

.

s

T=

21.0 F

2.8 A

on

×

= 036

.

s

ZXBM2001

ZXBM2002 ZXBM2003

ISSUE 1 - APRIL 2002

5

Lock and FG Timing Waveform:

Similar Part No. - ZXBM2003X10TA

Manufacturer	Part #	Datasheet	Description
Zetex Semiconductors	ZXBM2003	258Kb / 10P	VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER
Zetex Semiconductors	ZXBM2003	523Kb / 14P	VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER

More results

Similar Description - ZXBM2003X10TA

Manufacturer	Part #	Datasheet	Description
Zetex Semiconductors	ZXBM2001	258Kb / 10P	VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER
Diodes Incorporated	ZXBM2001	234Kb / 10P	VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER
Zetex Semiconductors	ZXBM200X	523Kb / 14P	VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER
List of Unclassifed Man...	AMC8500	715Kb / 27P	TWO PHASE VARIABLE SPEED FAN MOTOR CONTROLLER
List of Unclassifed Man...	AMC8510	306Kb / 3P	SINGLE PHASE VARIABLE SPEED FAN MOTOR CONTROLLER
Diodes Incorporated	ZXBM2004	224Kb / 12P	VARIABLE SPEED 2-PHASE BLDC MOTOR CONTROLLER
Zetex Semiconductors	ZXBM2004	249Kb / 12P	VARIABLE SPEED 2-PHASE BLDC MOTOR CONTROLLER
Zetex Semiconductors	ZXBM1016	252Kb / 12P	High efficiency variable speed single-phase fan motor controller
Diodes Incorporated	ZXBM1016	266Kb / 12P	High efficiency variable speed single-phase fan motor controller
List of Unclassifed Man...	AMC8520	92Kb / 2P	SINGLE PHASE VARIABLE SPEED ADVANCED FAN CONTROLLER

More results

ZXBM2003X10TA Datasheet(PDF) 5 Page - Zetex Semiconductors

ZXBM2003X10TA Datasheet(HTML) 5 Page - Zetex Semiconductors

Similar Part No. - ZXBM2003X10TA

Similar Description - ZXBM2003X10TA

Html Pages

1 2 3 4 5 6 7 8

Datasheet Download

Link URL