CMD1668M,CMD1667M
Two-Phase Unipolar Drive Brushless Motor Drivers
Overview
Package Dimensions
[CMD1668M, 1667M]
14
8
The
CMD1668M
Series are 2-phase unipolar drive brushless unit: mm
motor drivers that feature a wide usable voltage range and
a minimal number of required external components. They
also support the formation of motor lock protection and
automatic recovery circuits.
Functions and Features
• Output protection Zener diodes with variable breakdown
voltages
— When the Z1 and Z2 pins are open: V
OLM
= 57 V
— When the Z1 and Z2 pins are shorted: V
OLM
= 32 V
— An external Zener diode can be connected between
Z1 and V
CC
.
• Can support both 12-V and 24-V power supplies by
changing an external resistor.
• Hall elements can be connected directly.
• 1.5-A output current output transistors built in
• Built-in rotation detection function that outputs low
when driven and high when stopped (CMD1668M)
• FG signal function that sets FG high when IN- is low,
and sets FG low when IN- is high (CMD1667M)
• Motor lock protection and automatic recovery functions
built in
• Thermal shutdown function
1
8.0
0.35
1.0 1.0
0.1
1.5
1.8max
7
0.15
5.15
6.4
4.4
0.625
SOP-14
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 1 of 9
Rev 1.0 Aug. 23,2004
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
