Diodes ZXBM1015 User Manual

ZXBM1015

VARIABLE SPEED SINGLE- PHASE BLDC MOTOR CONTROLLER

DESCRIPTION

The ZXBM1015 is a Single-Phase, DC brushless motor
pre-driver with PWM variable speed control and
current limit features suitable for fans, blowers and
pump motors. Where the system dictates, this device
can be controlled via an external voltage, PWM signal
or thermistor.

FEATURES

Compliant with external PWM speed control

•

Compliant with thermistor control

•

Minimum speed setting

•

Low noise

•

Auto restart

•

Built in Hall amplifier

•

Speed pulse (FG) and lock rotor (RD) outputs

•

•

Current Limiting

•

Variable commutation delay

•

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

S

T

O

2

0

P

S

•

Small TSSOP20 package

•

Lead free product

APPLICATIONS

•

Mainframe and personal computer fans and blowers

•

Instrumentation fans

•

Central heating blowers

•

Automotive climate control

ORDERING INFORMATION

DEVICE REEL SIZE TAPE

ZXBM1015ST20TC

13" (330 mm ) 16mm 2,500

WIDTH

DEVICE MARKING

•

ZETEX
ZXBM1015
Date code

ISSUE 3 - MAY 2007

QUANTITY PER REEL

1

ZXBM1015

Absolute Maximum Ratings

Parameter Symbol Limits Unit

Supply Voltage V

Input Current I

Maximum Input Voltage V

Maximum Output Voltage V

Power Dissipation P

Operating Temp. T

Storage Temp. T

CCmax

CCmax

Imax

Omax

Dmax

OPR

STG

-0.6 to 20 V

200 mA

-0.6 to Vcc+0.5 V

-0.6 to Vcc+0.5 V

800 mW

-40 to 110 °C

-55 to 150 °C

1) Maximum allowable Power Dissipation, PD, is
shown plotted against Ambient Temperature,T
in the accompanying Power Derating Curve,
indicating the Safe Operating Area for the device.

2) Power consumed by the device, PT, can be
calculated from the equation:

P

= PQ+ P

T

where P

and P

and P

+ P

PhHi

s power dissipated under quiescent

Q i

current conditions, given by:

P

= VCCx I

Q

where Vcc is the maximum application
device Supply Voltage

and Icc is the maximum Supply Current
given in the Electrical Characteristics

is power generated due toeither one

PhHi

of the phase outputs Ph1Hi or Ph2Hi being
active, given by:

P

= IOLx V

PhHi

where IOLis the maximum application
Ph1Hi and Ph2Hi output currents

and V

OL

Voltage for the Ph1Hi and Ph2Hi outputs
given in the Electrical Characteristics

is power generated due toeither one

PhLo

of the phase outputs Ph1Lo or Ph2Lo being
active, given by:

P

= IOHx (VCC- VOH)

PhLo

where IOH is the maximum application
Ph1Lo and Ph2Lo output currents

+ PTR+ PHB+ P

PhLo

CC

OL

FGRD

is the maximum Low LevelOutput

,

A

and P

and P

and P

and V
Supply Voltage

and V
Voltage for the Ph1Lo and Ph2Lo outputs
given in the Electrical Characteristics.

Reference source current, given by:

P

where I
ThRef output current

and V
Supply Voltage

and V
voltage

source current, given by:

P

where I
Bias output current

and V

both the FrequencyGenerator and Locked
Rotor Detect outputsbeing active, given by:

P

where IOLis the maximum application FG
or RD output current

and V
Voltage

is the maximum application device

CC

is the minimum High LevelOutput

OH

is power generated due tothe Network

TR

= I

TR

CC

ThRef

is power generated due tothe Hall Bias

HB

= IHBx (VCC- VHB)

HB

HB

HB

is power generated due toeither or

FGRD

FGRD

OL

x (VCC- V

OThRef

is the maximum application

OThRef

ThRef

)

is the maximum application device

is the Network Reference

is the maximum application Hall

is the Hall Bias voltage

= IOLx V

OL

is the FG or RDLow Level Output

ISSUE 3 - MAY 2007

2

⍜j-a = 110°C/W
⍜j-c = 36°C/W

ZXBM1015

ELECTRICAL CHARACTERISTICS (at T

= 25°C and Vcc = 12V)

amb

PARAMETER SYMBOL MIN. TYP. MAX. UNIT CONDITIONS

Supply

Voltage V

Current I

CC

CC

4.7 - 18 V

- 11 14.5 mA No load

(1)

Hall connections

Hall Amp Input Voltage V

Hall Amp Common Mode Voltage V

Hall Amp Input Offset V

Hall Amp Input Current I

Hall Bias Voltage V

Hall Bias Output Current I

IN

CM

OFS

BS

HB

HB

40 - - mV d if f p-p

0.5 - VCC-1.5 V

- ⫾10 -mV

- -400 -650 nA

1.6 1.75 1.975 V I

HB OUT

- - -10 mA

=-5mA

Output Drives

Ph1Lo, Ph2Lo Output High Voltage V

Ph1Lo, Ph2Lo Output Low Voltage V

Ph1Lo, Ph2Lo Output Low Voltage V

Ph1Lo, Ph2Lo Output Source Current I

Ph1Lo, Ph2Lo Output Sink Current I

Ph1Hi, Ph2Hi Output Low Voltage V

Ph1Hi, Ph2Hi Output Sink Current I

OH

OLA

OLB

OH

OL

OLA

OL

VCC-2.2 VCC-1.8 - V IOH=80mA Phase active

- 0.4 0.6 V IOL= 32mA Phase active

- 0.4 0.6 V IOL=50␮A Phase inactive

- - -80 mA

- - 32 mA

- 0.55 0.8 V IOL= 100mA

- - 100 mA

ISSUE 3 - MAY 2007

3