Diodes ZXBM1021 Manual de usuario

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ZXBM1021
Document number: DS36322 Rev. 2 - 2
1 of 25
www.diodes.com
April 2014
© Diodes Incorporated
ZXBM1021
SINGLE PHASE VARIABLE SPEED MOTOR CONTROL PRE-DRIVER
Description
The ZXBM1021 is a high performance, low noise, single-phase,
Direct Current Brushless (BLDC) motor pre-driver with variable PWM
speed control and current control suitable for fan and blower motors.
For system flexibility the motor speed can be controlled by either an
external PWM control signal or by a DC voltage signal from an
external control voltage or from a Thermistor network.
To prevent motor inrush current the device has a soft start feature. To
help protect the motor coil, the ZXBM1021 provides rotor lock
protection which shuts down the output drive if rotor lock is detected.
The device automatically re-starts with soft-start when the rotor lock is
removed. The ZXBM1021 monitors the motor current to provide a
programmable over current limit.
A Tachometer output is provided by the open collector output
Frequency Generator (FG) pin which allows external interface to
monitor motor rotation or speed. The FG output is the magnetic
change frequency.
The ZXBM1021 is available in space saving and low profile
U-QFN4040-20 and industry standard QSOP-20 packages.
Features
Operating voltage: 6.8V to 18V
Can be extended with external regulator
Speed control via external PWM, DC or Thermistor signals
Low noise, high efficiency
Soft start
Integrated current control
Reference voltage output
Built-in Hall amplifier for direct connection of Hall element
Rotor Lock Protection
Lock detection, output shutdown and automatic re-start
Minimum speed setting
Frequency generator (FG) output
Thermally enhanced space saving low profile U-QFN4040-20 and
industry standard QSOP-20 packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Pin Assignments
(Top View)
V
CC
H+
ThRef
PWMSPD
C
SPD
C
LCK
Ph2Hi
H-
SPD
S
MIN
FG
Ph1Lo
Ph2Lo
Ph1Hi
SetThRef
Sense
SetTh
GND
V+OP
HBIAS
ZXBM1021
U-QFN4040-20
(Top View)
QSOP-20
Applications
Personal, servers and mainframe computers cooling fans
Instrumentation and equipment cooling fans
Home appliance fans and blowers
Central heating blowers and extraction systems
Industrial fans, blower and extractors
Hand dryers
Hand-held power tools
Pumps
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html ogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-1500ppm total Br + Cl) and
<1000ppm antimony compounds.
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Indice de contenidos

Pagina 1 - ZXBM1021

ZXBM1021 Document number: DS36322 Rev. 2 - 2 1 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 SINGLE PHASE VARIABLE SPEED MOTOR CO

Pagina 2

ZXBM1021 Document number: DS36322 Rev. 2 - 2 10 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Typical Operating Characteristics

Pagina 3 - Pin Descriptions

ZXBM1021 Document number: DS36322 Rev. 2 - 2 11 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information The ZXBM1

Pagina 4

ZXBM1021 Document number: DS36322 Rev. 2 - 2 12 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) Th

Pagina 5

ZXBM1021 Document number: DS36322 Rev. 2 - 2 13 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) SMI

Pagina 6

ZXBM1021 Document number: DS36322 Rev. 2 - 2 14 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) ThR

Pagina 7 - Functional Descriptions

ZXBM1021 Document number: DS36322 Rev. 2 - 2 15 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) Exa

Pagina 8

ZXBM1021 Document number: DS36322 Rev. 2 - 2 16 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) C

Pagina 9

ZXBM1021 Document number: DS36322 Rev. 2 - 2 17 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) Off

Pagina 10

ZXBM1021 Document number: DS36322 Rev. 2 - 2 18 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) Out

Pagina 11 - DC Speed Control

ZXBM1021 Document number: DS36322 Rev. 2 - 2 19 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) Ext

Pagina 12 - PWM Speed Control

ZXBM1021 Document number: DS36322 Rev. 2 - 2 2 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Typical Applications Circuit (Note 4

Pagina 13

ZXBM1021 Document number: DS36322 Rev. 2 - 2 20 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Application Information (cont.) Pa

Pagina 14

ZXBM1021 Document number: DS36322 Rev. 2 - 2 21 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Thermal Performance (1) Package t

Pagina 15

ZXBM1021 Document number: DS36322 Rev. 2 - 2 22 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Ordering Information ZXBM1021 - XX

Pagina 16

ZXBM1021 Document number: DS36322 Rev. 2 - 2 23 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Package Outline Dimensions (All di

Pagina 17

ZXBM1021 Document number: DS36322 Rev. 2 - 2 24 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Suggested Pad Layout Please see AP

Pagina 18

ZXBM1021 Document number: DS36322 Rev. 2 - 2 25 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 IMPORTANT NOTICE DIODES INCORPOR

Pagina 19 - External Drive Transistors

ZXBM1021 Document number: DS36322 Rev. 2 - 2 3 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Pin Descriptions Package types: U-Q

Pagina 20

ZXBM1021 Document number: DS36322 Rev. 2 - 2 4 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Functional Block Diagram (Note 5) Sp

Pagina 21 - Thermal Performance

ZXBM1021 Document number: DS36322 Rev. 2 - 2 5 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Absolute Maximum Ratings (Note 6) @

Pagina 22 - ( Top View )

ZXBM1021 Document number: DS36322 Rev. 2 - 2 6 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Electrical Characteristics (cont.)

Pagina 23

ZXBM1021 Document number: DS36322 Rev. 2 - 2 7 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Functional Descriptions H-Bias  Hal

Pagina 24 - Suggested Pad Layout

ZXBM1021 Document number: DS36322 Rev. 2 - 2 8 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Functional Descriptions (cont.) CLCK

Pagina 25

ZXBM1021 Document number: DS36322 Rev. 2 - 2 9 of 25 www.diodes.com April 2014 © Diodes Incorporated ZXBM1021 Functional Descriptions (cont.) Sens

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