SANYO LB1661, LB1660N, LB1665, LB1664N Datasheet
Ordering number: EN2551C
Monolithic Digital IC
LB1660N, 1661, 1664N, 1665
2-Phase Unipolar Brushless Motor Drivers
Applications
.
2-phase unipolar brushless motor (ex. DC brushless fan
motor) drivers
Features and Functions
.
Output current : 1.5 A
.
On-chip output protect zener diodes : 60 V (LB1660N,
1664N)
.
Output stage withstand voltage: 85 V (LB1661, 1665)
.
On-chip hall input amplifier
.
On-chip protector against lock
.
With lock detect pin
Package Dimensions
unit : mm
3001B-DIP8
[LB1661N, 1661]
SANYO : DIP8
unit : mm
3054A-DIP16F
[LB1664N, 1665]
SANYO : DIP16F
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
O1096HA(II) 7037KI/6227TA No.2251-1/9
LB1660N, 1661, 1664N, 1665
Classification
The LB1660 series are classified by the package and whether the on-chip output stage zener diode is used or not, as follows.
Output stage zener diode
Package
DIP8 (Pd = 1.2 W) LB1660N LB1661
DIP16F (Pd = 2.0 W) LB1664N LB1665
With (VZ= 59 V) Without (Vor = 85 V)
It is recommended to use the LB1661, 1665 in the following cases.
1 A capacitor is connected across the output and GND and the back emf is more than V
2 External zener diodes are connected to absorb the kickback voltage.
Pin Assignments
=59V
Z
Truth Table
IN+ IN− CR OUT1 OUT2
HLLHL
LHLLH
HLHHH
LHHHH
Top view
No.2551-2/9
LB1660N, 1661, 1664N, 1665
Equivalent Circuit Block Diagram and Sample Application Circuit
The LB1661, LB1665 have no output stage protect zener diode.
[LB1660N]
Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum input current I
Output supply voltage V
Maximum output current I
Output negative current I
RD flow-in current I
RD supply voltage V
Allowable power dissipation Pd max 1.2 W
Operating temperature Topr −30 to +80 °C
Storage temperature Tstg −55 to +125 °C
max t % 20 ms 200 mA
CC
max Internal V
O
max 1.5 A
O
OM
RD
RD
t % 20 µs −50 mA
5mA
30 V
Allowable Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Input current range I
Common-mode input voltage range V
CC
ICM
7.0 to 50.0 mA
0toVIN-1.5 V
No.2551-3/9
Loading...