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PDF LB1662D Data sheet ( Hoja de datos )
| Número de pieza | LB1662D | |
| Descripción | DC Fan Motor Drivers | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LB1662D (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Ordering number: EN3416A
Monolithic Digital IC
LB1662D, 1662M
DC Fan Motor Drivers
Overview
The LB1662D, 1662M are 2-phase brushless motor drivers
operated from 5 V power supply. Motor Lock protection and
automatic return can be provided with a minimum number of
external parts.
Package Dimensions
unit : mm
3098B-DIP10S
[LB1662D]
Features and Functions
. Designed to be operated from 5 V power supply, making
stable operation possible at a reduced voltage.
. Direct connection to a Hall element possible.
. Built-in output transistors with output current 1.5 A
. Built-in rotation detect function (Drive mode: ‘‘L’’, Stop
mode: ‘‘H’’)
. Built-in motor lock protector and automatic return function
. With radio noise reduction pin
SANYO : DIP10S
unit : mm
3097-MFP16FS
[LB1662M]
SANYO : MFP16FS
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
O1596HA(II)/7190TA(GTPS) No.3416-1/6
1 page  
LB1662D, 1662M
1 When a fan is rotating, the capacitor is charge at 2.8 µA (typ) and discharged through the C with pulses according to the
rotational speed.
2 When a fan is locked, no discharge occurs through the C and the C voltage rises, turning OFF the output at VTH1 (0.7 ×
VIN).
3 When the output is turned OFF, discharge occurs through the C at 0.38 µA (typ). If the lock is not released when the C
voltage drops to VTH2 (0.38 × VIN), the capacitor is charged to VTH1 again. (At this moment, the output is turned ON.)
These operations 2 and 3 repeated at a cycle of approximately tON : tOFF = 1 : 7 protect a motor.
4 If the lock is released when the C voltage drops to VTH2, the output is turned ON, starting rotation.
(5) Rotation detect signal (RD pin)
Open collector output (Drive mode: ‘‘L’’, Stop mode: ‘‘H’’)
(6) Radio noise reducing (B1 and B2 pins)
These are the base pins for Darlington connected output transistors. If radio noise is a problem, add a capacitor of
approximately 0.01 to 0.1 µF between B1 and B2, or 0.001 µF to 0.01 µF between OUT and B.
Block Diagram and Sample Application Circuit − 1
Control block
Low
current
circuit
0.47 to 10µF
*1 Use (10,000 to 100,000 pF) if radio noise is a problem.
*2 Use a Zener diode or capacitor for output stage protection.
No.3416-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LB1662D.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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