 English |
|
|
|
|
|
|
|
| ZXBM2004JA16TC Datasheet, PDF (1/19 Pages) Diodes Incorporated – TWO PHASE VARIABLE SPEED MOTOR CONTROL PRE-DRIVER | |||
| |||
|
ZXBM2004
TWO PHASE VARIABLE SPEED
MOTOR CONTROL PRE-DRIVER
Description
Pin Assignments
The ZXBM2004 is a 2-phase, Brushless Direct Current (BLDC)
motor control pre-driver with variable PWM speed control
suitable for fan and blower motors.
For system flexibility, motor speed can be controlled by
changing SPD pin voltage which can be either from Thermistor
network, external voltage or PWM signal.
To help protect the motor coil, the ZXBM2004 provides Rotor
Lock Protection which shuts down the output drive if rotor lock
is detected. The device automatically re-starts when the rotor
lock is removed.
A Tachometer output is provided by open-drain Frequency
Generator (FG) Pin which allows external interface to monitor
motor rotation or speed. The FG output is the magnetic
change frequency.
H+ 1
H-
N/C
ThRef
SPD
CPWM
SMIN
GND
( Top View )
ZXBM 2004
QSOP-16
(Top View )
VCC
V+OP
Ph1
Ph2
N/C
FG
RD
CLCK
The ZXBM2004 is available in small space saving low profile
NC
Ph1
U-QFN3030-16 and QSOP-16 packages.
ThRef
Ph2
SPD
NC
CPWM
FG
Features
⢠Supports two-phase BLDC motor control
⢠Operating voltage: 4.7V to 18V
o Can be extended with external regulator
⢠PWM speed control via external Thermister, DC voltage or
PWM signals
⢠Reference voltage output
⢠Built-in Hall amplifier allows direct connection of Hall
element
⢠Rotor Lock Protection (Lock detection, output shutdown
and automatic re-start)
⢠Rotor lock detect (RD) output
⢠Minimum speed setting
⢠Frequency generator (FG) output for speed measurements
⢠Low noise
⢠Space saving low profile U-QFN3030-16 and QSOP-16
packages
⢠âGreenâ Molding Compound
U-QFN 3030 -16
Applications
⢠Desktop PC and Servers fans and blowers
⢠Instrumentation fans
⢠Central heating blowers
⢠Automotive instrument cooling and climate control
⢠Extractor fans
⢠General motors and pumps
ZXBM2004
Document number: DS33433 Rev. 5 - 2
1 of 19
www.diodes.com
February 2012
© Diodes Incorporated
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese