LB1665 Sanyo Semiconductor Corporation, LB1665 Datasheet

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LB1665

Manufacturer Part Number
LB1665
Description
2-phase unipolar brushless motor driver
Manufacturer
Sanyo Semiconductor Corporation
Datasheet

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Part Number:
LB1665
Manufacturer:
SONY
Quantity:
6 218
Applications
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Features and Functions
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Ordering number: EN2551C
2-phase unipolar brushless motor (ex. DC brushless fan
motor) drivers
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
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
2-Phase Unipolar Brushless Motor Drivers
LB1660N, 1661, 1664N, 1665
Package Dimensions
unit : mm
3001B-DIP8
unit : mm
3054A-DIP16F
O1096HA(II) 7037KI/6227TA No.2251-1/9
[LB1660N, 1661]
[LB1664N, 1665]
Monolithic Digital IC
SANYO : DIP16F
SANYO : DIP8

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LB1665 Summary of contents

Page 1

Ordering number: EN2551C Applications . 2-phase unipolar brushless motor (ex. DC brushless fan motor) drivers Features and Functions . Output current : 1 On-chip output protect zener diodes : 60 V (LB1660N, 1664N) . Output stage withstand voltage: ...

Page 2

... 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 Truth Table IN+ IN− LB1660N, 1661, 1664N, 1665 With ( Without (Vor = LB1660N LB1661 LB1664N LB1665 OUT1 OUT2 Top view No.2551-2/9 ...

Page 3

... Equivalent Circuit Block Diagram and Sample Application Circuit The LB1661, LB1665 have no output stage protect zener diode. [LB1660N] Absolute Maximum Ratings 25°C Parameter Maximum input current Output supply voltage Maximum output current Output negative current RD flow-in current RD supply voltage Allowable power dissipation ...

Page 4

Electrical Characteristics 25°C Parameter Symbol Output limit voltage Output saturation voltage input voltage IN Amp input offset voltage Amp input bias current RD output saturation voltage V RD Comparator ...

Page 5

... Amp input offset voltage Amp input bias voltage RD output saturation voltage V RD Comparator input bias current V Comparator input threshold voltage V [LB1665] Absolute Maximum Ratings 25°C Parameter Maximum input current Output supply voltage Maximum output current RD flow-in current RD supply voltage Allowable power dissipation Operating temperature Storage temperature Allowable Operating Conditions 25° ...

Page 6

Electrical Characteristics 25°C Parameter Symbol Output limit voltage 1 V Output limit voltage Output saturation voltage input voltage IN Amp input offset voltage Amp input bias current Comparator input ...

Page 7

Lock detect threshold voltage The LB1660 series have the function to stop the output drive after the lapse of a given period of time when a motor is locked, and period of time can be set by C, R3. ...

Page 8

Output transistor lock Pulse of 1 Pulse of 2 (2) CR time constant setting method 1 Bias current of CR pin and effect of leakage of C. The value of the charge current at the threshold point is V 0.2/R3. ...

Page 9

Timing Chart Start No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, ...

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