ZXBM2004N14TA_技术文档

ZXBM2004

VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER FOR

THERMISTOR CONTROL

DESCRIPTION

The ZXBM2004 is a 2-phase, DC brushless motor pre-driver with PWM

variable speed control suitable for fan and blower motors. The controller is

primarily intended for thermal control using a thermistor but can also be used

for control using an external voltage or PWM signal.

FEATURES

SO14

•

PWM Speed control via external thermistor

Ability to be able to set a minimum speed

Ability to be able to remove any speed change against supply voltage variation

Low noise

Built in lock detect protection, rotational speed sensing and automatic recovery

Built in Hall amplifier allows direct connection to Hall element

Speed (FG) pulse output

Rotor lock (RD) output

Up to 18V input voltage (60V with external regulator)

SO14N and QSOP16 package options

APPLICATIONS

•

Mainframe and Personal Computer Fans and Blowers

QSOP16

Instrumentation Fans

Central Heating Blowers

Automotive climate control

ORDERING INFORMATION - SO14N

DEVICE

REEL S IZE

TAPE WIDTH

16mm

QUANTITY PER REEL

ZXBM2004N14TA

ZXBM2004N14TC

7" (180mm)

500

13" (330mm)

16mm

2,500

ORDERING INFORMATION - QSOP16

DEVICE

REEL S IZE

TAPE WIDTH

12mm

QUANTITY PER REEL

ZXBM2004Q16TA

ZXBM2004Q16TC

7" (180mm)

500

13" (330mm)

12mm

2,500

DEVICE MARKING

QSOP16: ZETEX

SO14:

ZETEX

ZXBM2004

Date code

BM2004

Date code

PROVISIONAL ISSUE H - J ULY 2003

1

S E M IC O N D U C T O R S

ZXBM2004

ABSOLUTE MAXIMUM RATINGS

PARAMETER

Supply Voltage

Input Current

S YMBOL

LIMITS

UNIT

V

-0.6 to 20

V

CCmax

I

200

mA

mW

°C

CCmax

Power Dissipation

Operating Temp.

Storage Temp.

P

500

Dmax

T

-55 to 110

-55 to 125

OPR

T

°C

STG

ELECTRICAL CHARACTERISTICS (at Tam b = 25°C & Vcc = 12V)

PARAMETER

S YMBOL MIN

TYP

MAX

UNIT CONDITIONS

Supply Voltage

V

I

4.7

18

V

CC

1

Supply Current

5.5

7.5

mA

mV

V

No Load

diff p-p

CC

Hall Amp Input Voltage

Hall Amp Common Mode Voltage

Hall Amp Input Offset

V

I

40

IN

0.5

Vcc-1.5

700

CM

OFS

7

mV

nA

V

Hall Amp Bias Current

PH1, PH2 Output High

400

BS

V

I

V

-2.2

V

-1.8

I

=80mA

=16mA

CC

OH

OL

OH

2

PH1, PH2 Output Low

0.4

0.6

-80

16

V

OLA

OLB

3

PH1, PH2 Output Low

V

=50␮A

PH1, PH2 Output Source Current

PH1, PH2 Output Sink Current

mA

␮A

V

OH

I

OL

C

Charge Current

-5.0

50

-6.0

62

3

-7.0

75

PWM

PWMC

PWMD

Discharge Current

High Threshold Voltage

Low Threshold Voltage

V

F

THH

THL

1

V

PWM Frequency

ThRef Voltage

24

2.96

kHz

V

C

= 0.1nF

PWM

V

2.94

3

I

=100␮A

OThRef

ThReF

ThRef Output Current

I

-1

mA

␮A

V

OThRef

S

Input Current

-0.25

1

-0.5

V

= 2V,SPD=open

IN

MIN

ISMIN

SPD Voltage Minimum

SPD Voltage Maximum

SPD Input Current

V

I

100% PWM Drive

0% PWM Drive

SPDL

SPDH

3

V

-0.8

-3.8

-0.46

3

-2

␮A

V

= 2V

IN

ISPD

LCKC

LCKD

C

Charge Current

I

-2.8

LCK

Discharge Current

-0.55

High Threshold Voltage

Low Threshold Voltage

V

THH

THL

1

V

Lock condition On:Off ratio

1:8

FG & RD Low Level Output Current

FG & RD Low Level Output Voltage

I

5

mA

V

OL

V

0.5

I

= 5mA

OL

Notes:

1. Measured with pins H+, H-, C

and C = 0V and all other signal pins open circuit.

PWM

LCK

2. Measured when opposing Phase Output is Low

3. Measured when opposing Phase Output is High

PROVISIONAL ISSUE H - J ULY 2003

2

S E M IC O N D U C T O R S

ZXBM2004

BLOCK DIAGRAM

6

PIN ASSIGNMENTS

PROVISIONAL ISSUE H - J ULY 2003

3

S E M IC O N D U C T O R S

ZXBM2004

PIN FUNCTIONAL DESCRIPTION

H+

H-

- Hall input

If variable speed control is not required this pin can be

left with an external potential divider to set a fixed

speed or tied to ground to provide full speed i.e. 100%

PWM drive.

The rotor position is detected by a Hall sensor whose

output is applied to these pins. This sensor can be

either a 4 pin 'naked' Hall device or of the 3 pin buffered

switching type. For a 4 pin device the differential Hall

output signal is connected to the H+ and H- pins. For a

buffered Hall sensor the Hall device output is attached

to the H+ pin, with a pull-up attached if needed, whilst

the H- pin has an external potential divider attached to

hold the pin at half Vcc. When H+ is high in relation to

H-, Ph2 is the active drive.

If required this pin can also be used as an enable pin.

The application of a voltage >3.0V will to force the PWM

drive fully off, in effect disabling the drive.

C_PWM- Sets PWM frequency

This pin has an external capacitor attached to set the

PWM frequency for the Phase drive outputs. A

capacitor value of 0.1nF will provide a PWM frequency

of typically 24kHz.

ThRef - Therm istor netw ork reference

This is a reference voltage of nominal 2.96V. It is

designed for the ability to 'source' current into the 10k⍀

Thermistor network therefore it will not 'sink' any

current from a higher voltage.

The C_PWMtiming period (T_PWM) is determined by the

following equation:

V_THH- V_THLx C

(

)

(

+

)

T_PWM

=

The total current drawn from the pin by the minimum

speed potential divider to pin S_MINand by the

thermistor network at maximum temperature should

not exceed 1mA.

I_PWMC

I_PWMD

Where:

C = C_PWM+15, - (in pF)

_THHand V_THLare the C_PWMpin

threshold voltages

_PWMCand I_PWMDare the charge and

discharge currents (in ␮A).

_PWMin ␮s

V

SPD - Therm istor netw ork input

I

The thermistor network is attached to this pin. The

resultant thermistor network voltage applied to the

SPD pin provides control over the Fan Motor speed by

varying the Pulse Width Modulated (PWM) drive ratio

at the Ph1 and Ph2 outputs. The control signal takes the

form of a voltage input of range 3V to 1V, representing

0% to 100% drive respectively.

T

As these threshold voltages are nominally set to V_THH

3V and V_THL= 1V the equations can be simplified as

follows:

=

2C

T_PWM

=

+

In normal operation a 10k⍀ NTC Thermistor network as

shown in the Block Diagram would be attached to the

SPD pin.

I_PWMCI_PWMD

S_MIN- Sets Minim um Speed

When using a thermistor to control a fan’s speed it is

possible that at low temperatures the fan might fail to

start or if already running and the temperature drops

the fan might stop. This is an undesirable condition to

have in thermal controlled fans so the S_MINpin is used

to set a minimum speed. The following graph

illustrates a typical speed response characteristic for a

thermally controlled fan.

PROVISIONAL ISSUE H - J ULY 2003

4

S E M IC O N D U C T O R S

ZXBM2004

GND - Ground

This is the device supply ground return pin and will

generally be the most negative supply pin to the fan.

100

90

80

70

60

50

40

30

20

10

0

C_LCK- Locked Rotor tim ing capacitor

Should the fan stop rotating for any reason, i.e. an

obstruction in the fan blade or a seized bearing, then

the device will enter a Rotor Locked condition. In this

condition after a predetermined time (T_LOCK) the RD pin

will go high and the Phase outputs will be disabled.

After a further delay (T_OFF) the controller will re-enable

the Phase drive for a defined period (T_ON) in an attempt

to re-start the fan. This cycle of (T_OFF) and (T_ON) will be

repeated indefinitely or until the fan re-starts.

Set Minimum Speed

-10

0

10

20

30

40

50

60

70

Temperature (˚C)

Typical Tem perature Response

The frequency at which this takes place is determined

by the size of the capacitor applied to this C_LCKpin. For a

12V supply a value of 1uF will typically provide an 'On'

(drive) period of 0.53s and an 'Off' (wait) period of 4.3s,

giving an On:Off ratio of 1:8.

When a potential divider is attached from this pin and

between ThRef and Gnd it sets a voltage on the pin.

This voltage is monitored by the SPD pin such that it

cannot rise above it. As a higher voltage on the SPD pin

represents a lower speed it therefore restricts the lower

speed range of the fan. If this feature is not required the

pin is left tied to ThRef so no minimum speed will be

set.

The C_LCKtiming periods are determined by the

following equations:

V_THH- V_THLx C_LCK

V_THHx C_LCK

l_LCKC

(

T_on=

)

T_lock

=

I_LCKC

If the fan is being controlled from an external voltage

source either this feature should not be used or if it is

required then a >1k⍀ resistor should be placed in series

with the SPD pin.

V_THH- V_THLx C_LCK

(

=

)

T_off

I_LCKD

Where:

V_THHand V_THLare the C_LCKpin

threshold voltages and

_LCKCand I_LCKDare the charge and

discharge currents.

I

As these threshold voltages are nominally set to V_THH

=

3V and V_THL= 1V the equations can be simplified as

follows:

3 x C_LCK

I_LCKC

2C_LCK

I_LCKC

2C_LCK

I_LCKD

T_lock

=

T_on

=

T_off=

PROVISIONAL ISSUE H - J ULY 2003

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S E M IC O N D U C T O R S

ZXBM2004

RD

- Locked Rotor error output

V_CC- Applied voltage

This pin is the Locked Rotor output as referred to in the

C

_LCKtiming section above. It is high when the rotor is

This is the device internal circuitry supply voltage. For

5V to 12V fans this can be supplied directly from the

Fan Motor supply. For fans likely to run in excess of the

18V maximum rating for the device this will be

supplied from an external regulator such as a Zener

diode.

stopped and low when running.

This is an open collector drive giving an active pull

down with the high level being provided by an external

pull up resistor.

FG

- Frequency Generator (speed) output

RD and FG Tim ing Waveform :

This is the Frequency Generator output and is a

buffered signal from the Hall sensor.

This is an open collector drive giving an active pull

down with the high level being provided by an external

pull up resistor.

PH1 - Phase 1 External transistor driver

PH2 - Phase 2 External transistor driver

These are the Phase drive outputs and are darlington

emitter follower outputs with an active pull-down to

help faster switch off when using bipolar devices. The

outputs are designed to provide up to 80mA of drive

when high to the base or gates of external transistors

as shown in the Typical Application circuit following.

The external transistors in turn drive the fan motor

windings.

Lock Timing Example:

In addition the active Phase drive is capable of sinking

up to 16mA when driving low to aid turn off times

during PWM operation. When the Phase is inactive the

output is held low by an internal pull-down resistor

Using the equation previously described and to be

found under the C_LCKpin description:

3 x C_LCK

I_LCKC

2C_LCK

I_LCKC

2C_LCK

I_LCKD

T_lock

=

T_on

=

T_off=

V+OP - Phase Outputs supply voltage

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

of I_LCKCand I_LCKDto be found in the Electrical

Characteristics we can derive the following timings for

operation at 12V and 25°C:

This pin is the supply to the Phase outputs and will be

connected differently dependant upon external

transistor type.

3 x 1uF

3.8␮A

2 x 1uF

3.8␮A

For bipolar devices this pin will be connected by a

resistor to the V_CCpin. The resistor is used to control

the current into the transistor base so its value is

chosen accordingly.

T_lock

=

= 0.79s

T_on

=

= 0.526s

2 x 1uF

T_off

=

= 4.35s

0.46 ␮A

ForMOSFETdevicesthepinwillconnecttotheV_CCpin

PROVISIONAL ISSUE H - J ULY 2003

6

S E M IC O N D U C T O R S

ZXBM2004

APPLICATIONS INFORMATION

This section is intended to give a brief insight into using Figure 1 shows an Application Circuit for driving

the ZXBM2004. More complete data covering all bipolar devices. The normal practice when driving a

applications aspects of this and other ZXBM series of bipolar device would be to use a base series resistor to

fan motor pre-drivers is available from the Zetex control and limit the current into the base. However the

website www.zetex.com or from your nearest Zetex problem with this would be that the resistor would also

office.

restrict the removal of the base stored charge at

switch-off. In order to keep turn-off times as short as

possible it is therefore preferable to remove the base

resistor and apply the current limiting in the supply to

the output stage. This is not too dissimilar from the

approach taken by conventional Totem-pole output

stages in TTL devices.

The ZXBM2004 device is a development of the

ZXBM2001 to ZXBM2003 series of fan motor controller

that has been specifically developed for use in

thermistor temperature control situations. The main

feature of the device is the ability to set a minimum

speed at which the fan will run.

In the case of the ZXBM2004 the current limiting is

applied by inserting a resistor from V+OP to the V_CC

pin. The current applied to the base of Q1 and Q2 in

Figure 1 is determined by:

Two application circuits are illustrated here and both

show slightly differing ways in which the ZXBM2004

controller can be used. For example Figure 1 is a simple

solution and employs bipolar driver transistors and a

naked Hall device whilst the Figure 2 employs MOSFET

devices, a buffered Hall device and speed vs supply

change normalisation and a kick-start feature. These

differing features will be described in detail in the

following sections.

V_CC- 1.8 +0.7

(

)

R3 =

I_Out

Where:

1.8isthevoltagedropduetothePhase

Drive Output stage.

0.7 is the voltage dropped across the

Base-Emitter of Q1/Q2.

The Phase Outputs

I

_OUTis the drive required by the external

The Phase outputs on the ZXBM2004 2-phase DC

brushless motor pre-driver have been designed to be

capable of driving both Bipolar or MOSFET power

transistors. The output stage consists of both active

pull-up and active pull-down devices for optimum

PWM switching. Pulling up, the output can deliver a

maximum of 80mA whilst pulling down, sinking 16mA

is possible. This is particularly useful for driving bipolar

devices where for fast turn-off it is important to remove

base stored charge as quickly as possible.

Phase Drive transistors Q1/Q2.

The circuit example in Figure 1 has the external drive

(I_Out) set to approximately 30mA.

PROVISIONAL ISSUE H - J ULY 2003

7

S E M IC O N D U C T O R S

ZXBM2004

D2

12V

D1

1N4004

1N4148

W2

W1

R9

2k

Ω

R3

330

Ω

V_CC

H+

H-

C5 2.2

µF

ZD1

47V

ZD2

47V

Hall

V+OP

Ph1

Q1

FCX

Q2

FCX

R7

ThRef

1053A

5.1k

Ω

ZXBM2004

SPD

C_PWM

S_MIN

Ph2

FG

R4

30k

R_Therm

C4

Ω

10k

NTC

Ω

0.1

µF

R6

12k

RD

Ω

C3

R5

Ω

C_LCK

1 µF

Gnd

C2

33k

C1

100pF

FG

RD

0V

1 µF

Figure 1: Typical Application Circuit utilising Bipolar power transistors and a Naked Hall device.

The V+OP pin will then be connected directly to the

supply i.e. the Vcc pin. Figure 2 illustrates this.

When driving MOSFETs a more conventional

approach is employed in that each MOSFET will have a

gate limiting resistor to control turn-on and turn-off.

D2

12V

D1

1N4004

1N4148

W2

W1

R9 ^#4

33k

R10

33k

Ω

V _CC

H+

R8 ^{# 1}

91k

#6

2.2

µF

C5

Hall

ZD1

47V

ZD2

47V

Ω

V+OP

H-

D3

D4

1N4148

Q1

Q2

R1 ^#5

R2 ^#5

R7

15k

ThRef

ZXMN ZXMN

6A07Z 6A07Z

Ph1

100

Ω

100

Ω

ZXBM2004

SPD

C_PWM

S_MIN

Ph2

FG

R4

30k

R11

33k

R_Therm

10k

NTC

#2

C4

Ω

0.1

µF

RD

R6

C3

100k

Ω

R5

33k

C_LCK

1 µF

Gnd

C5 ^#3

C2

Ω

C1

100pF

1 µF

FG

RD

0V

1 µF

Figure 2: Typical Application Circuit utilising MOSFET power transistors and a buffered Hall device.

Notes:

Components marked # are related to specific features or fan requirements and their use is user dependent.

#1 R8 is required if the fan is being designed to give constant speed in mid range when the supply voltage varies.

#2 C4 will be required where the Thermistor is some distance from the ZXBM2004 or in high power fan or

blower applications.

#3 C5 performs a kick-start to the fan if a Minimum Speed lower than or close to the fans practical starting speed is being used.

#4 R9 is only needed if it is not included in the Hall device.

#5 The normal practice with MOSFETs is to include a series resistor with the Gate to prevent oscillations, however dependent upon the

characteristics of the MOSFETs being used it has been found that these can be omitted.

PROVISIONAL ISSUE H - J ULY 2003

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S E M IC O N D U C T O R S

ZXBM2004

If the minimum speed feature is not required the pin is

left open circuit, however in noisy environments it

might be better to connect it to pin ThRef. Note: it

should not be connected to Ground as this will

represent a minimum speed of full speed.

Therm al Control

The ZXBM2004 has been specifically designed for use

in thermal control applications where a thermistor is

employed for temperature sensing.

The addition of a capacitor on pin S_MINwill cause the

fan to start with a higher percentage of PWM drive than

when running. It is normal that a fan will run at a lower

speed than that at which it can start so this feature can

be useful where a fan's Minimum Speed is set very low

and therefore it might not always start. It in effect gives

the fan a kick to start it. The size of the capacitor

required will depend upon the motor size however, it is

suggested that 470␮F to 1mF would be a suitable

starting point.

In most applications, it is expected that the user will

wish to set their own temperature response

characteristics. To do this a 10k⍀ NTC thermistor can

be employed in conjunction with a pair of resistors to

set such parameters as the speed at 25°C and the slope

of the response up to full speed.

R6 and R7 attached to pin SPD in both figures are used

to set the temperature response. The ratio between the

two resistors will enable the user to set the speed of the

fan at 25°C. This is influenced by the mechanical

response of the fan and also by the inductance of the

stator windings so the resistor ratio needs to be

adjusted by trial to take this into account.

Speed vs Supply Change Norm alisation

With the ZXBM2004, and by the addition of one

resistor, it is possible to set the thermistor network so

as the fan’s speed remains constant when the supply

voltage changes. This is very useful where a fan is to be

specified over a large supply voltage range.

The ratio of R6 compared to the 10k⍀ of the thermistor

will determine the slope. Raising the value of R6 in

relation to the Thermistor will give a steeper slope, for

example say 50% speed at 25°C and full speed at 40°C

as is shown in Figure 2, whereas lowering the value will

make the slope shallower, for example 50% speed at

25°C and full speed at 55°C as in Figure 1.

Figure 2 illustrates a circuit where the feature is included.

In this case resistor R8 is added into the thermistor

network between the supply and the SPD pin.

The value chosen for R8 will be dependent upon the

fan’s characteristics but will be typically in the range

20k⍀ to 100k⍀ dependent upon motor winding

characteristics. The precise value is best determined by

trial but it should be pointed out that in order to keep

the same temperature response characteristics the

value of R7 will also need to be increased in

compensation as the two resistors are in effect in

parallel but sourced from different voltages.

Minim um Speed

One of the main features of the ZXBM2004 is the ability

to set a minimum speed that the fan will run. This will

avoid the fan stopping at low temperatures and also

ensures the fan will always start when cold.

R4 and R5 in both figures are used to set a voltage on

the Pin S_MIN. This voltage represents the voltage above

which the voltage of the thermistor network on the SPD

pin cannot rise.

The best approach to set up a fan for this feature is to

run the fan at the desired minimum speed by applying

a voltage to the SPD pin with the ThRef pin Open

Circuit. Measure the voltage on the SPD pin and set that

voltage using the potential divider R4 and R5 between

the ThRef and Ground.

PROVISIONAL ISSUE H - J ULY 2003

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S E M IC O N D U C T O R S

ZXBM2004

External Voltage and PWM control

As an alternative to control by a thermistor it is also Where control is required using an externally

possible to control the speed of the fan by a signal from generated PWM signal the SPD pin should be left open

an external source. This signal may be either a control circuit and the PWM signal applied to the C_PWMpin. The

voltage or PWM waveform signal.

signal can be a conventional 5V or 3.3V TTL or CMOS

compatible waveform. A potential divider of say two

47k⍀ resistors should be placed between ThRef and

Gnd pins and connected to the C_LCKpin.

When a voltage signal is used it will be applied to the

SPD pin and should vary between 1V representing full

speed (100% PWM drive) and 3V representing 0% PWM

drive. In practice, and dependant upon the other Where control is required using an externally

aspects of the motor design, low speed might be generated PWM signal the SPD pin should have a

represented by 50% PWM drive. If the Minimum Speed potential divider added between G_NDand V_CC. The

feature is required then the signal should be applied to resistors be typically 10k⍀. The PWM signal is applied

the ZXBM2004 SPD pin via a 2.2k⍀ resistor to allow the directly to the CPWM pin and can be a conventional 5V

internal minimum speed circuit to over-ride the control or 3.3V TTL or CMOS compatible waveform.

voltage.

A Selection of Suitable Transistors and MOSFETs

Bip o la r Typ e s

(NPN)

V

(V)

I

(A)

Min H @ IC

FE

V

m a x(m V)

IC / IB

Pa cka g e

CEO

C

CE(s a t )

@

FMMT619

FCX619

50

2

3

4

6

300 @ 0.5A

200 @ 1A

220 @ 1A / 10mA

100 @ 1A / 10mA

200 @ 1A / 10mA

175 @ 1A / 100mA

65 @ 0.5A / 50mA

SOT23

50

60

75

SOT89

ZXT13N50DE6

FZT851

300 @ 1A

100 @ 2A

300 @ 0.5A

100 @ 2A

100 @ 1A

SOT23-6

SOT223

SOT89

FCX1053A

FZT853

4.5

100

150

6

4

SOT223

FZT855

MOS FET Typ e s

(N-ch a n n e l)

V

(V)

I

(A)

I

(A)

R m a x(m

DS (o n )

)

Pa cka g e

DS

D

PEAK

(Pu ls e d )

@

V

= 10V

GS

ZXMN3A04DN8

ZXMN6A09DN8

ZXMN6A07F

30

7.6

25

20

45

SO8 (DUAL)

SOT23

60

5

17.6

4

1

45

ZXMN6A11Z

ZXMN6A11G

ZXMN6A09K

ZXMN10A09K

ZXMN10A11G

60

3.8

11.2

7.1

1.9

10

140

45

SOT89

60

10

SOT223

DPAK

60

40

100

25

90

DPAK

5.9

600

SOT223

PROVISIONAL ISSUE H - J ULY 2003

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S E M IC O N D U C T O R S

ZXBM2004

PACKAGE DIMENSIONS

PACKAGE OUTLINE SO14N

DIM

MILLIMETRE

INCHES

MIN.

MAX.

0.069

0.010

0.344

0.244

0.157

0.050

MIN.

1.35

0.10

8.55

5.80

3.80

0.40

MAX.

A

A1

D

H

E

0.053

0.004

0.337

0.228

0.150

0.016

1.75

0.25

8.75

6.20

4.00

1.27

L

e

0.050 BSC

1.27 BSC

b

c

θ

0.013

0.008

0°

0.020

0.010

8°

0.33

0.19

0°

0.51

0.25

8°

h

0.010

0.020

0.25

0.50

PACKAGE OUTLINE QSOP16

PACKAGE DIMENSIONS

DIM

MILLIMETRE

INCHES

MIN.

MAX.

0.069

0.010

0.059

0.197

MIN.

1.35

0.10

1.25

4.80

MAX.

1.75

0.25

1.50

5.00

A

A1

A2

D

0.053

0.004

0.049

0.189

0.009 Ref

0.23 BSC

ZD

E

E1

L

0.228

0.150

0.016

0.244

0.157

0.050

5.79

3.81

0.41

6.20

3.99

1.27

e

0.025 BSC

0.64 BSC

b

c

θ

0.008

0.007

0°

0.012

0.010

8°

0.20

0.18

0°

0.30

0.25

8°

h

0.010

0.020

0.25

0.50

Note: Dimensions in Inches are Control Dimensions dimensions in millimetres are approximate

Europe

Am ericas

Asia Pacific

Zetex plc

Fields New Road

Chadderton

Oldham, OL9 8NP

United Kingdom

Telephone (44) 161 622 4444

Fax: (44) 161 622 4446

hq@zetex.com

Zetex GmbH

Streitfeldstraße 19

D-81673 München

Zetex Inc

700 Veterans Memorial Hwy

Hauppauge, NY 11788

Zetex (Asia) Ltd

3701-04 Metroplaza Tower 1

Hing Fong Road

Kwai Fong

Hong Kong

Telephone: (852) 26100 611

Fax: (852) 24250 494

asia.sales@zetex.com

Germany

USA

Telefon: (49) 89 45 49 49 0

Fax: (49) 89 45 49 49 49

europe.sales@zetex.com

Telephone: (1) 631 360 2222

Fax: (1) 631 360 8222

usa.sales@zetex.com

These offices are supported by agents and distributors in major countries world-wide.

This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced

for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company

reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.

For the latest product information, log on to w w w .zetex.com

PROVISIONAL ISSUE H - J ULY 2003

11

S E M IC O N D U C T O R S


型号：	ZXBM2004N14TA
厂家：	DIODES INCORPORATED
描述：	Brushless DC Motor Controller, 0.2A, PDSO14, SO-14 电动机控制光电二极管
文件：	总11页 (文件大小：163K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ZXBM2004N14TA [DIODES]

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