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PDF LB1965M Data sheet ( Hoja de datos )

Número de pieza LB1965M
Descripción Two-Phase Unipolar Driver for Variable-Speed Fan Motor
Fabricantes Sanyo 
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Ordering number : ENN6189
LB1965M
Monolithic Digital IC
LB1965M
Two-Phase Unipolar Driver
for Variable-Speed Fan Motor
Features
• With only a few peripheral parts including a thermistor,
ambient temperature dependent continuous speed control
can be implemented. This allows low-speed startup
(100% duty drive at startup).
• Settable minimum rotation speed for low temperature
• Built-in thermistor voltage amplification circuit assures
high precision of ambient temperature to rotation speed
ratio
• Built-in motor lockup protection and automatic recovery
circuit
Output current Io = 1.5A, built-in output stage protection
Zener diode
–> Low-noise protection with chip capacitors also
possible
• Built-in thermal protection
• FG output
• Direct Hall element connection possible
Package Dimensions
unit: mm
3111-MFP14S
[LB1965M]
14 8
17
8.0
0.35 1.0 1.0
0.15
SANYO : MFP14S
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter
Symbol
Conditions
Maximum input current
ICC max t 20 ms
Maximum applied output voltage
VOUT max
Maximum output current
I out max
Current flowing into FG
IRD max
FG applied voltage
VRD max
Allowable power dissipation
Pd max Mounted on a specified PCB
(114.3 × 76.1 × 1.5 mm3 glass epoxy)
Operating temperature
Topr
Storage temperature
Tstg
Ratings
200
Internal
1.5
10
50
0.8
Unit
mA
V
A
mA
V
W
–30 to +85
–55 to +150
°C
°C
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
83100RM(KI) No. 6189-1/6

1 page




LB1965M pdf
Block Diagram
D1
LB1965M
R1 VIN
14
R6
3
IN+
H2
IN–
AMP
Constant
Charge/
Discharge
Thermal
Protect
Control
Block
L1
B1
6
5
OUT1
L2
8 B2
9
OUT2
CR
4
C1
0.47 to10 µF
13 FG
VIN
R2 Ct
12
C2
R3
TH1
×1.6
OUTPUT-Timing-Control
GND
7
11
Rth
10
RMI
R4
R5
Unit ( resistance: , capacitance: F)
No. 6189-5/6

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