Zetex ZXBM2003TC, ZXBM2001TA, ZXBM2001TC, ZXBM2002TA, ZXBM2002TC Datasheet
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DESCRIPTION
The ZXBM200x is a series of 2-phase, DC brushless motor pre-drivers with PWM
variable speed control suitable for fan and blower motors.
FEATURES
·
Built in lock detect protection, rotational speed sensing and automatic recovery
·
Built in Hall amplifier allows direct connection to Hall element
·
PWM Speed control can be implemented via external voltage or resistance (thermistor) input
·
Speed (FG) pulse output – ZXBM2003
·
Rotor lock output – ZXBM2002
· Combined Rotor Lock (RD) and Speed (FG) signal – ZXBM2001
· Up to 18V input voltage (60V with external regulator)
· MSOP10 package
APPLICATIONS
· Mainframe and Personal Computer Fans and Blowers
· Instrumentation Fans
·
Central Heating Blowers
·
Automotive climate control
DEVICE MARKING
ZXBM2001 - BM21
ZXBM2002 - BM22
ZXBM2003 - BM23
ZXBM2001
ZXBM2002 ZXBM2003
ISSUE 1 - APRIL 2002
1
VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER
DEVICE REEL SIZE TAPE WIDTH QUANTITY PER REEL
ZXBM200xX10TA 7” (180mm) 12mm 1,000
ZXBM200xX10TC 13” (330mm) 12mm 4,000
ORDERING INFORMATION
Example: ZXBM2001X10TA
ZXBM2001
ZXBM2002 ZXBM2003
ISSUE 1 - APRIL 2002
2
Parameter Symbol Limits Unit
Supply Voltage V
CCmax
-0.6 to 20 V
Input Current I
CC
200 mA
Power Dissipation P
D
500 mW
Operating Temp. T
OPR
-40 to 85 ⬚C
Storage Temp. T
STG
-55 to 125 ⬚C
Absolute maximum ratings
Parameter Symbol Min Typ Max Unit Conditions
Supply Voltage V
CC
4.5 18 V
Supply Current I
CC
2.2 3.25 mA No Load
1
Hall Amp Input Voltage 40 mV diff p-p
Hall Amp Common Mode Voltage V
CM
0.5 0.5V
CC
VCC-1.5 V
Hall Amp Input Offset V
OFS
±7 mV
Hall Amp Bias Current V
BS
-350 nA
PH1, PH2 Output High V
OH
VCC-2.2 VCC-1.8 V IOH= 80mA
PH1, PH2 Output Off Leakage
Current
I
OFF
⫾10 A
PH1, PH2 Output Current I
OL
80 mA
Lock/FG Maximum Collector
Voltage
V
OH
V
CC
V
Lock/FG Sink Current I
OL
5mA
Lock/FG Low Level O/P Voltage V
OL
0.3 0.5 V IOL=5mA
C
LCK
Charge Current I
LCKC
-1.8 -2.8 AVin=1.5V
C
LCK
Discharge Current I
LCKD
0.28 0.35 AVin=1.5V
Lock condition On:Off ratio 1:7 1:10
C
LCK
High Threshold Voltage V
THH
2.0 V
C
LCK
Low Threshold Voltage V
THL
1.0 V
C
PWM
Charge Current I
PWMC
3.6 4.3 5.0 AVin=1.5V
C
PWM
Discharge Current I
PWMD
50 62 75 AVin=1.5V
PWM Frequency F
PWM
24 kHz C
PWM
=
0.15nF
C
PWM
High Threshold Voltage V
THH
2.0 V
C
PWM
Low Threshold Voltage V
THL
1.0 V
SPD Voltage Control Range V
SPD
12V2
SPD Open Circuit Voltage 1.5 V 3
Electrical Characteristics (at Tamb = 25°C & Vcc = 12V)
Notes:
1
Measured with pins H+, H-, C
LCK
and C
PWM
= 0V and all other signal pins open circuit.
2
The 1V minimum represents 100% PWM drive and 2V represents 0% PWM drive.
3
This voltage is determined by an internal resistor network of 52.5k⍀ from the pin to Gnd and 19.5k⍀ from the pin to a 2V reference. Whilst both
resistors track each other the absolute values are subject to a ⫾20% manufacturing tolerance.
Block Diagram (ZXBM2001):
Pin Assignments
ZXBM2001
ZXBM2002 ZXBM2003
ISSUE 1 - APRIL 2002
3
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