No. 5686-16/16

LB1821M

This catalog provides information as of June, 1997. Specifications and information herein are subject to change

without notice.

s 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, death or property loss.

s Anyone purchasing any products described or contained herein for an above-mentioned use shall:

ΠAccept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and

distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all

damages, cost and expenses associated with such use:

 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on

SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees

jointly or severally.

s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for

volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied

regarding its use or any infringements of intellectual property rights or other rights of third parties.

Continued from preceding page.

Pin No.

Pin

Functions

Equivalent circuit

41

VCO filter amplifier output

This pin is connected to the VCO circuit internally in the IC.

42

VCO filter amplifier inverting input

This pin is connected through a 10-k

Ω resistor internally in

the IC to the VCO system PLL output.

44

TOC

Torque command input

When the TOC voltage falls, the UL, VL, and WL PWM

duties are increased.

from a normal operational amplifier is desirable.)

VCO

input

CR

oscillation

signals

VCO PLL

output